Developmental Psychology via MedWorm.com

Retrospective recall of sexual orientation identity development among gay, lesbian, and bisexual adults.

Developmental Psychology — Mon, 26 Sep 2011 04:00:00 +0100

Although recent attention has focused on the likelihood that contemporary sexual minority youth (i.e., gay, lesbian, bisexual [GLB]) are “coming out” at younger ages, few studies have examined whether early sexual orientation identity development is also present in older GLB cohorts. We analyzed retrospective data on the timing of sexual orientation milestones in a sample of sexual minorities drawn from the California Quality of Life Surveys. Latent profile analysis of 1,260 GLB adults, ages 18–84 years, identified 3 trajectories of development: early (n = 951; milestones spanning ages 12–20), middle (n = 239; milestones spanning ages 18–31), and late (n = 70; milestones spanning ages 32–43). Motivated by previous research on variability in adolescent developmental trajectories...

The development of memory efficiency and value-directed remembering across the life span: A cross-sectional study of memory and selectivity.

Developmental Psychology — Mon, 26 Sep 2011 04:00:00 +0100

Although attentional control and memory change considerably across the life span, no research has examined how the ability to strategically remember important information (i.e., value-directed remembering) changes from childhood to old age. The present study examined this in different age groups across the life span (N = 320, 5–96 years old). A selectivity task was used in which participants were asked to study and recall items worth different point values in order to maximize their point score. This procedure allowed for measures of memory quantity/capacity (number of words recalled) and memory efficiency/selectivity (the recall of high-value items relative to low-value items). Age-related differences were found for memory capacity, as young adults recalled more words than the other gro...

Cognitive predictors of achievement growth in mathematics: A 5-year longitudinal study.

Developmental Psychology — Mon, 26 Sep 2011 04:00:00 +0100

The study's goal was to identify the beginning of 1st grade quantitative competencies that predict mathematics achievement start point and growth through 5th grade. Measures of number, counting, and arithmetic competencies were administered in early 1st grade and used to predict mathematics achievement through 5th (n = 177), while controlling for intelligence, working memory, and processing speed. Multilevel models revealed intelligence and processing speed, and the central executive component of working memory predicted achievement or achievement growth in mathematics and, as a contrast domain, word reading. The phonological loop was uniquely predictive of word reading and the visuospatial sketch pad of mathematics. Early fluency in processing and manipulating numerical set size and Arabi...

The role of local and distal landmarks in the development of object location memory.

Developmental Psychology — Mon, 26 Sep 2011 04:00:00 +0100

To locate objects in the environment, animals and humans use visual and nonvisual information. We were interested in children's ability to relocate an object on the basis of self-motion and local and distal color cues for orientation. Five- to 9-year-old children were tested on an object location memory task in which, between presentation and test, the availability of local and distal cues was manipulated. Additionally, participants' viewpoint could be changed. We used a Bayesian model selection approach to compare our hypotheses. We found that, to remain oriented in space, 5-year-olds benefit from visual information in general, 7-year-olds benefit from visual cues when a viewpoint change takes place, and 9-year-olds do not benefit from the availability of visual cues for orientation but r...

Children's sleep and cognitive performance: A cross-domain analysis of change over time.

Developmental Psychology — Mon, 26 Sep 2011 04:00:00 +0100

Relations between changes in children's cognitive performance and changes in sleep problems were examined over a 3-year period, and family socioeconomic status, child race/ethnicity, and gender were assessed as moderators of these associations. Participants were 250 second- and third-grade (8–9 years old at Time 1) boys and girls. At each assessment, children's cognitive performance (Verbal Comprehension, Decision Speed) was measured using the Woodcock-Johnson III Tests of Cognitive Abilities, and sleep problems (Sleepiness, Sleep/Wake Problems) were collected via self-report. Individual growth models revealed that children who reported increases in Sleepiness exhibited little growth in Verbal Comprehension over time compared with their peers who reported decreases in Sleepiness, resulti...

Automated gaze-contingent objects elicit orientation following in 8-month-old infants.

Developmental Psychology — Mon, 26 Sep 2011 04:00:00 +0100

We presented 8-month-old infants with automated objects without human features that did or did not react contingently to the infants' fixations recorded by an eye tracker. We found that an object's occasional orientation toward peripheral targets was reciprocated by a congruent visual orientation following response by infants only when it had displayed gaze-contingent interactivity. Our finding demonstrates that infants' gaze-following behavior does not depend on the presence of a human being. The results are consistent with the idea that, in 8-month-old infants, the detection of contingent reactivity, like other communicative signals, can itself elicit the illusion of being addressed. (PsycINFO Database Record (c) 2011 APA, all rights reserved) (Source: Developmental Psychology)

The storm and stress (or calm) of early adolescent self-concepts: Within- and between-subjects variability.

Developmental Psychology — Mon, 19 Sep 2011 04:00:00 +0100

This study uses intraindividual variability and change methods to test theoretical accounts of self-concept and its change across time and context and to test the developmental implications of this variability. The 5-year longitudinal study of 541 youths in a rural Pennsylvania community from 3rd through 7th grade included twice-yearly assessments of self-concept (academic and social), corresponding external evaluations of competence (e.g., teacher-rated academic skills, peer-nominated “likeability”), and multiple measures of youths' overall adjustment. Multiphase growth models replicate previous research, suggesting significant decline in academic self-concept during middle school but modest growth in social self-concept from 3rd through 7th grade. Next, a new contribution is made to ...

Maternal influences on youth responses to peer stress.

Developmental Psychology — Mon, 12 Sep 2011 04:00:00 +0100

Understanding how youths develop particular styles of responding to stress is critical for promoting effective coping. This research examined the prospective, interactive contribution of maternal socialization of coping and peer stress to youth responses to peer stress. A sample of 144 early adolescents (mean age = 12.44 years, SD = 1.22) and their maternal caregivers completed questionnaires and semistructured interviews in 2 waves over a 1-year period. Results revealed that mothers' disengagement coping suggestions predicted maladaptive responses to stress, particularly for youths who received low levels of engagement suggestions, and engagement coping suggestions protected youths against maladaptive responses to stress. Importantly, these effects emerged only in the context of heightene...

The significance of cross-racial/ethnic friendships: Associations with peer victimization, peer support, sociometric status, and classroom diversity.

Developmental Psychology — Mon, 12 Sep 2011 04:00:00 +0100

This short-term longitudinal study examined the associations between cross-racial/ethnic friendships and relative changes in forms of peer victimization or peer support and the roles of classroom diversity and sociometric status (i.e., social preference) in these associations. A total of 444 children (age range: 9–10 years) from racially/ethnically diverse elementary schools participated in this study. Results demonstrated that cross-racial/ethnic friendships (but not same-racial/ethnic friendships) uniquely predicted relative decreases in relational victimization. Further, classroom diversity moderated the relations of cross-racial/ethnic friendships with relative decreases in physical victimization and relative increases in peer support, such that these relations were stronger for chil...

Children's moral evaluations of reporting the transgressions of peers: Age differences in evaluations of tattling.

Developmental Psychology — Mon, 12 Sep 2011 04:00:00 +0100

The way children evaluate the reporting of peers' transgressions to authority figures was investigated. Participants, ages 6–11 years (N = 60), were presented with a series of vignettes, each of which depicted a child who committed either a minor transgression (such as not finishing the vegetables at lunch) or a more serious transgression (such as stealing from a classmate). Participants were asked to evaluate the decision of a child observer who either did or did not report the transgression to a teacher. Younger children considered reporting to be appropriate for both types of transgressions, but older children considered reporting to be appropriate for major transgressions only. Results are interpreted with reference to (a) a changing peer culture in which the social cost of reporting...

An initial evaluation of the role of emotion and impulsivity in explaining racial/ethnic differences in the use of corporal punishment.

Developmental Psychology — Mon, 12 Sep 2011 04:00:00 +0100

The authors sought to provide an initial evaluation of the hypothesis that corporal punishment is less strongly associated with parental emotion and impulsivity among African American (“Black”) in contrast to European American (“White”) parents. White–Latino and Black–Latino differences in corporal punishment, emotion, and impulsivity were explored, given the lack of existing theory predicting group differences. Couples with 3- to 7-year-old children were recruited via random digit dialing, and the parents completed questionnaires and an analog parent–child conflict task in the laboratory. Group differences were tested pooling mothers and fathers via dyadic data analyses. Black parents (N = 57) had more positive attitudes toward and used more corporal punishment than White pa...

Civic engagement patterns and transitions over 8 years: The AmeriCorps national study.

Developmental Psychology — Mon, 12 Sep 2011 04:00:00 +0100

Latent transition analysis was used to examine civic engagement transitions across 2 waves spanning 8 years in a sample of AmeriCorps participants and a comparison group (N = 1,344; 77% female). Latent indicators of civic engagement included volunteering, community participation, civic organizational involvement, local and national voting, civic consciousness, and perceptions of civic knowledge. Three latent statuses were identified; inactive, voting involved, and highly committed. Consistent with life cycle theories of political engagement, the inactive status was most prevalent at Wave 1 and the voting-involved status most prevalent at Wave 4. AmeriCorps members were less involved in voting at Wave 1 but, among voters, were more likely to become highly committed by Wave 4. Compared with ...

Changes in neighborhood poverty from 1990 to 2000 and youth's problem behaviors.

Developmental Psychology — Mon, 12 Sep 2011 04:00:00 +0100

This study used data from the Project on Human Development in Chicago Neighborhoods, a multilevel, longitudinal study of children sampled from 80 diverse neighborhoods, to explore associations among changes in neighborhood poverty from 1990 to 2000 and changes in youth's internalizing problems and property and violent offenses over 6 years (N = 3,324; mean age across waves = 12.6 years). After accounting for a host of background characteristics and weighting for the propensity to stay in the original sampled neighborhood, results indicated that neighborhood poverty dynamics were unfavorably linked to boys' problem behaviors. In high-poverty (>30% in 1990) neighborhoods, decreasing poverty was associated with boys' greater internalizing problems and higher probability of increasing in viole...

Does mentioning “some people” and “other people” in a survey question increase the accuracy of adolescents' self-reports?

Developmental Psychology — Mon, 12 Sep 2011 04:00:00 +0100

This article reports tests of the assumptions underlying its use: that it conveys to adolescents that socially undesirable attitudes, beliefs, or behaviors are not uncommon and legitimizes reporting them, yielding more valid self-reports than would be obtained by “direct” questions, which do not mention what other people think or do. A meta-analysis of 11 experiments embedded in four surveys of diverse samples of adolescents did not support the assumption that the some/other form increases validity. Although the some/other form led adolescents to think that undesirable attitudes, beliefs, or behaviors were more common and resulted in more reports of those attitudes and behaviors, answers to some/other questions were lower in criterion validity than were answers to direct questions. Bec...

Moral disengagement among serious juvenile offenders: A longitudinal study of the relations between morally disengaged attitudes and offending.

Developmental Psychology — Mon, 12 Sep 2011 04:00:00 +0100

The present study investigates the relation between moral disengagement—one's willingness to conditionally endorse transgressive behavior—and ongoing offending in a sample of adolescent male felony offenders (N = 1,169). In addition, the study attempts to rule out callous–unemotional traits as a third variable responsible for observed associations between moral disengagement and offending. A bivariate latent change score analysis suggests that reduction in moral disengagement helps to speed decline in self-reported antisocial behavior, even after adjusting for the potential confound of callous–unemotional traits. Declines in moral disengagement are also associated with declining likelihood of offending, based on official records. Given that both moral disengagement and offending te...

Changes in racial identity among African American college students following the election of Barack Obama.

Developmental Psychology — Mon, 12 Sep 2011 04:00:00 +0100

The current study considered the influence of the 2008 presidential election on the racial identity of African American college students (Mage = 19.3 years; 26.3% male). The design of the study consisted of 2 components: longitudinal and daily. The longitudinal component assessed 3 dimensions of racial identity (centrality, private regard, and public regard) 2 weeks before and 5 months after the election, and the daily diary component assessed racial identity and identity exploration on the days immediately before and after the election. Daily items measuring identity exploration focused on how much individuals thought about issues relating to their race. Analyses considered the immediate effects of the election on identity exploration and the extent to which changes in exploration were sh...

Imitation from 12 to 24 months in autism and typical development: A longitudinal Rasch analysis.

Developmental Psychology — Mon, 12 Sep 2011 04:00:00 +0100

This study prospectively examined the development of imitation between 12 and 24 months of age in 154 infants at familial risk for ASD and 78 typically developing infants who were all later assessed at 36 months for ASD or other developmental delays. The study established a developmental measure of imitation ability and examined group differences over time, using an analytic Rasch measurement model. Results revealed a unidimensional latent construct of imitation and verified a reliable sequence of imitation skills that was invariant over time for all outcome groups. Results also showed that all groups displayed similar significant linear increases in imitation ability between 12 and 24 months and that these increases were related to individual growth in both expressive language and ratings...

The “cost of caring” in youths' friendships: Considering associations among social perspective taking, co-rumination, and empathetic distress.

Developmental Psychology — Mon, 05 Sep 2011 04:00:00 +0100

The current research considered the costs of caring in youths' friendships. The development of a new construct, empathetic distress, allowed for a direct test of the commonly held belief that females suffer greater vicarious distress in response to close others' stressors and problems than do males. Empathetic distress refers to one's strongly sharing a relationship partner's distress over problems to the point of taking on the partner's distress and experiencing it as one's own. This new construct was examined in an ethnically diverse sample of early adolescents who responded to a series of questionnaires in their classrooms. Results indicated that girls did experience greater empathetic distress in friendships than did boys. In addition, the current research revealed that social perspect...

The presence of a best friend buffers the effects of negative experiences.

Developmental Psychology — Mon, 05 Sep 2011 04:00:00 +0100

The goal of the current study was to examine how the presence of a best friend might serve as protection against the effect of negative experiences on global self-worth and the hypothalamic-pituitary-adrenocortical axis (HPA axis). A total of 103 English-speaking male (n = 55) and female (n = 48) participants from Grade 5 (M = 10.27 years) and Grade 6 (M = 11.30 years) completed booklets about their experiences that occurred 20 min previously and how they felt about themselves at the moment, and they provided saliva multiple times per day over the course of 4 consecutive days. Having a best friend present during an experience significantly buffered the effect of the negativity of the experience on cortisol and global self-worth. When a best friend was not present, there was a significant i...

Future orientation, impulsivity, and problem behaviors: A longitudinal moderation model.

Developmental Psychology — Mon, 05 Sep 2011 04:00:00 +0100

In the current study, based on a sample of 1,873 adolescents between 11.4 and 20.9 years of age from the first 3 waves of the National Longitudinal Study of Adolescent Health, we investigated the longitudinal effects of future orientation on levels of and developmental changes in problem behaviors, while controlling for the effects by impulsivity; we also tested the moderating effects by future orientation on the impulsivity–problem behaviors link over time. Additionally, we examined future orientation operationalized by items measuring education, marriage, and life domains. Findings based on growth curve analyses provided evidence of longitudinal effects by education and life future orientation on both levels of and developmental changes in problem behaviors; the effect of marriage futu...

Families created through surrogacy: Mother–child relationships and children's psychological adjustment at age 7.

Developmental Psychology — Mon, 05 Sep 2011 04:00:00 +0100

This study examined the impact of surrogacy on mother–child relationships and children's psychological adjustment. Assessments of maternal positivity, maternal negativity, mother–child interaction, and child adjustment were administered to 32 surrogacy, 32 egg donation, and 54 natural conception families with a 7-year-old child. No differences were found for maternal negativity, maternal positivity, or child adjustment, although the surrogacy and egg donation families showed less positive mother–child interaction than the natural conception families. The findings suggest that both surrogacy and egg donation families function well in the early school years. (PsycINFO Database Record (c) 2011 APA, all rights reserved) (Source: Developmental Psychology)

Infants' joint attention skills predict toddlers' emerging mental state language.

Developmental Psychology — Mon, 05 Sep 2011 04:00:00 +0100

To assess predictive relations between joint attention skills, intention understanding, and mental state vocabulary, 88 children were tested with measures of comprehension of gaze and referential pointing, as well as the production of declarative gestures and the comprehension and production of imperative gestures, at the ages of 7–18 months. Infants' intention-based imitation skills were assessed at 12, 15, and 18 months. At the ages of 24 and 36 months, toddlers' internal state lexicon was evaluated by parents with a German adaptation of the Mental State Language Questionnaire (Olineck & Poulin-Dubois, 2005). Regression analyses revealed that 9-months-olds' comprehension of referential pointing contributed significantly to the prediction of intention-based imitation skills at 15 months...

The role of familiarity in daily well-being: Developmental and cultural variation.

Developmental Psychology — Mon, 29 Aug 2011 04:00:00 +0100

The present study examined life stage and cultural differences in the degree to which familiarity of one's physical location and interaction partner is associated with daily well-being. Participants reported all the activities they engaged in and how they felt during these activities on a previous day using the Day Reconstruction Method (Kahneman, Krueger, Schkade, Schwarz, & Stone, 2004). Both Korean and American retirees were happier when in a familiar place than in an unfamiliar place, whereas the reverse was true for both Korean and American working adults. In addition, we found cultural differences in the role of familiarity of the interaction partner. Specifically, Koreans (both retirees and working adults) were substantially happier when they interacted with a familiar person than w...

The social status of aggressive students across contexts: The role of classroom status hierarchy, academic achievement, and grade.

Developmental Psychology — Mon, 29 Aug 2011 04:00:00 +0100

This study tested the effects of 5 classroom contextual features on the social status (perceived popularity and social preference) that peers accord to aggressive students in late elementary school, including classroom peer status hierarchy (whether within-classroom differences in popularity are large or small), classroom academic level, and grade level as the main predictors of interest as well as classroom aggression and ethnic composition as controls. Multilevel analyses were conducted on an ethnically diverse sample of 968 fourth- and fifth-graders from 46 classrooms in 9 schools. Associations between aggression and status varied greatly from one classroom to another. Aggressive students were more popular and better liked in classrooms with higher levels of peer status hierarchy. Aggre...

Relations among conceptual knowledge, procedural knowledge, and procedural flexibility in two samples differing in prior knowledge.

Developmental Psychology — Mon, 08 Aug 2011 04:00:00 +0100

Competence in many domains rests on children developing conceptual and procedural knowledge, as well as procedural flexibility. However, research on the developmental relations between these different types of knowledge has yielded unclear results, in part because little attention has been paid to the validity of the measures or to the effects of prior knowledge on the relations. To overcome these problems, we modeled the three constructs in the domain of equation solving as latent factors and tested (a) whether the predictive relations between conceptual and procedural knowledge were bidirectional, (b) whether these interrelations were moderated by prior knowledge, and (c) how both constructs contributed to procedural flexibility. We analyzed data from 2 measurement points each from two s...

Collaboration promotes proportional reasoning about resource distribution in young children.

Developmental Psychology — Mon, 01 Aug 2011 04:00:00 +0100

The authors investigated how children and adults evaluate the “niceness” of individuals who engage in resource distribution, with a focus on their sensitivity to the proportion of resources given. Across 3 experiments, subjects evaluated the niceness of a child who gave a quantity of pennies to another child. In Study 1 (N = 30), adults showed sensitivity to the proportion given, whereas 5- and 7-year-old children did not. In Study 2 (N = 74), both younger (3- to 5-year-old) and older (6- to 8-year-old) children were sensitive to proportion only when resources were earned by a giver in collaboration with the recipient rather than by the giver alone. Adults, however, were sensitive to proportion in both cases. In Study 3 (N = 44), the authors tested 5- and 6-year-olds and their parents ...

Developing a side bias for conspecific faces during childhood.

Developmental Psychology — Mon, 18 Jul 2011 04:00:00 +0100

In this study, we examined the development of this visual-field bias over middle childhood (5–10 years). Our goal was to both characterize the developmental trajectory of the left-side bias (should one exist) and examine the selectivity of the phenomenon. We used own- versus other-species faces (human and monkey faces) to ask whether the left-side bias was equally strong for categories with which children have vastly different amounts of experience. We found that the left-side bias did show both a developmental trend over the age range we considered and distinct category selectivity; for human faces the preference for the left side of the image increased across the age range tested, but for monkey faces it did not. We discuss our results in the context of experience-dependent perceptual ...

Family roots of empathy-related characteristics: The role of perceived maternal and paternal need support in adolescence.

Developmental Psychology — Mon, 18 Jul 2011 04:00:00 +0100

Theories on empathy development have stressed the role of socialization in general and the role of parental support in particular. This 3-wave longitudinal study of middle adolescents (N = 678) aimed to contribute to the extant research on the socialization of empathy (a) by examining the relative contribution of perceived maternal and paternal need supportive parenting on over-time changes in adolescents' emotional and cognitive aspects of empathy (i.e., empathic concern and perspective taking, respectively) and (b) by considering the possibility of reciprocal relations between perceived parenting and adolescent empathy. Whereas paternal need support consistently predicted over-time changes in perspective taking in both sons and daughters, perceived maternal need support predicted changes...

Young children's responses to guilt displays.

Developmental Psychology — Mon, 18 Jul 2011 04:00:00 +0100

Displaying guilt after a transgression serves to appease the victim and other group members, restore interpersonal relationships, and indicate the transgressors' awareness of and desire to conform to the group's norms. We investigated whether and when young children are sensitive to these functions of guilt displays. In Study 1, after 4- and 5-year-old children watched videos of transgressors either displaying guilt (without explicitly apologizing) or not displaying guilt, 5-year-olds appropriately inferred that the victim would be madder at the unremorseful transgressor and would prefer the remorseful transgressor. They also said that they would prefer to interact with the remorseful transgressor, judged the unremorseful transgressor to be meaner, and, in a distribution of resources task,...

Reward improves cancellation and restraint inhibition across childhood and adolescence.

Developmental Psychology — Mon, 11 Jul 2011 04:00:00 +0100

Inhibitory control allows for the regulation of thought and action and interacts with motivational variables, such as reward, to modify behavior adaptively as environments change. The authors examined the effects of reward on two distinct forms of inhibitory control, cancellation and restraint. Typically developing children and adolescents completed 2 versions of the stop signal task (cancellation and restraint) under 3 reward conditions (neutral, low reward, and high reward), where rewards were earned for successful inhibitory control. Rewards improved both cancellation and restraint inhibition, with similar effects of reward on each form of inhibitory control. Rewards did not alter the speed of response execution in either task, suggesting that rewards specifically altered inhibition pro...

English- and Chinese-learning infants map novel labels to objects and actions differently.

Developmental Psychology — Mon, 11 Jul 2011 04:00:00 +0100

Research based on naturalistic and checklist methods has revealed differences between English and Chinese monolingual children in their trajectories of learning nouns and verbs. However, studies based on controlled laboratory designs (e.g., Imai et al., 2008) have yielded a more mixed picture. Guided by a multidimensional view of word learning (in which different mechanisms are weighted and recruited to different extents over development), we examined English- and Mandarin-learning infants' (n = 128) ability to map novel labels to unfamiliar actions and objects. Findings reveal cross-linguistic variations in the mapping of words to actions versus objects that are consistent with those found previously with naturalistic and checklist methods. Specifically, English learners were able to map ...

When variability matters more than meaning: The effect of lexical forms on use of phonemic contrasts.

Developmental Psychology — Mon, 11 Jul 2011 04:00:00 +0100

During the first half of the 2nd year of life, infants struggle to use phonemic distinctions in label–object association tasks. Prior experiments have demonstrated that exposure to the phonemes in distinct lexical forms (e.g., /d/ and /t/ in daddy and tiger, respectively) facilitates infants' use of phonemic contrasts but also that they struggle to generalize the use of phonemic contrasts to novel syllabic contexts (Thiessen, 2007; Thiessen & Yee, 2010). Further, in prior research, infants have been provided only with experience in lexical forms that refer to novel objects, while many lexical forms in the natural environment do not have easily identified visual referents. The experiments in this article show that even lexical forms without referents can facilitate use of phonemic contras...

Effects of distraction on visual enumeration in children and adults.

Developmental Psychology — Mon, 11 Jul 2011 04:00:00 +0100

Speeded enumeration of visual stimuli typically produces a bilinear function, with a shallow subitizing rate (Os alone) and with distractors (Os among Xs) in 35 children aged 6–11 years and 17 adults. Subitizing span increased significantly from childhood to adulthood, and counting rate increased significantly with age. Bilinear functions were significantly better than linear fits to the data for most children and adults both without distractors (97% and 100%, respectively) and with distractors (89% and 94%), consistent with their efficient visual search for a single O among multiple Xs. These findings are discussed in comparison with those from new modeling of earlier enumeration data from young and older adults, revealing striking asymmetries in subitizing with distractors between deve...

Attachment states of mind and the quality of young adults' sibling relationships.

Developmental Psychology — Mon, 11 Jul 2011 04:00:00 +0100

This report examines young adults' states of mind regarding their early attachment experiences in relation to the observed and perceived quality of their sibling relationships. Sixty sibling pairs (18–25 years of age) were (a) administered the Adult Attachment Interview (George, Kaplan, & Main, 1985), (b) videotaped during a conflict resolution task, and (c) asked to describe the quality of their relationship using the Adult Sibling Relationship Questionnaire (Stocker, Lanthier, & Furman, 1997). As hypothesized, dismissing states of mind were associated with lower levels of positive and negative affect while participants attempted to resolve an area of conflict with a sibling as well as with relatively low levels of reported warmth in the relationship. In contrast—but also in line with...

Infant–mother attachment and children's friendship quality: Maternal mental-state talk as an intervening mechanism.

Developmental Psychology — Mon, 11 Jul 2011 04:00:00 +0100

Utilizing data from the Eunice Kennedy Shriver National Institute of Child Health and Human Development's Study of Early Child Care and Youth Development, we investigated mothers' talk about mental states during play with their 24-month-old children as a mechanism though which infant–mother attachment was associated with children's later friendship quality. A series of repeated measures analyses of covariance indicated that a secure versus avoidant or disorganized infant–mother attachment was associated with more maternal talk about cognitions (but not emotions or desires) at 24 months. Latent growth curve models tested within a structural equation modeling framework revealed indirect effects of infant–mother attachment on observed and mother-reported positive friendship interaction ...

Mother–child play and maltreatment: A longitudinal analysis of emerging social behavior from infancy to toddlerhood.

Developmental Psychology — Mon, 11 Jul 2011 04:00:00 +0100

Mother–child play of maltreating and nonmaltreating families was analyzed when infants were 12 months old (Time 1), and 2 years old (Time 2), as a context to examine children's developing cognitive and social skills. At Time 1, infants from abusing families demonstrated less independent and more imitative behavior during play than did infants from neglecting and nonmaltreating families, suggesting a delay in emerging social behaviors. In this longitudinal follow-up, mother–child play was reassessed 1 year later (N = 78), with a focus on children's engagement in nonplay and pretend play and on children's abilities to initiate social exchanges and respond to parental requests. Play and social behavior were coded from semistructured and unstructured play paradigms at both time points. Mat...

Trajectories of cognitive development among American Indian young children.

Developmental Psychology — Sun, 10 Jul 2011 23:00:00 +0100

In this study, 110 American Indian infants from one Northern Plains reservation community were assessed four times between ages 6 months and 36 months, with the Mullen Scales of Early Learning. At 6 months of age, scores were near the national norms; a drop occurred between 6 months and 15 months. Scores then tended to level off below the norms through 36 months. In each domain, we observed a crucial decline over the 1st year of life and relatively little change in the 2nd and 3rd years of life, highlighting the importance of developing culturally syntonic interventions to facilitate cognitive development during the 1st year of life. (PsycINFO Database Record (c) 2011 APA, all rights reserved) (Source: Developmental Psychology)

Gender differences in cognitive development.

Developmental Psychology — Sun, 10 Jul 2011 23:00:00 +0100

The potential effect of gender on intellectual abilities remains controversial. The purpose of this research was to analyze gender differences in cognitive test performance among children from continuous age groups. For this purpose, the normative data from 7 domains of the newly developed neuropsychological test battery, the Evaluación Neuropsicológica Infantil [Child Neuropsychological Assessment] (Matute, Rosselli, Ardila, & Ostrosky-Solis, 2007), were analyzed. The sample included 788 monolingual children (350 boys, 438 girls) ages 5 to 16 years from Mexico and Colombia. Gender differences were observed in oral language (language expression and language comprehension), spatial abilities (recognition of pictures seen from different angles), and visual (Object Integration Test) and tac...

Girls' math performance under stereotype threat: The moderating role of mothers' gender stereotypes.

Developmental Psychology — Sun, 10 Jul 2011 23:00:00 +0100

Previous research on stereotype threat in children suggests that making gender identity salient disrupts girls' math performance at as early as 5 to 7 years of age. The present study (n = 124) tested the hypothesis that parents' endorsement of gender stereotypes about math moderates girls' susceptibility to stereotype threat. Results confirmed that stereotype threat impaired girls' performance on math tasks among students from kindergarten through 2nd grade. Moreover, mothers' but not fathers' endorsement of gender stereotypes about math moderated girls' vulnerability to stereotype threat: Performance of girls whose mothers strongly rejected the gender stereotype about math did not decrease under stereotype threat. These findings are important because they point to the role of mothers' bel...

Social competence of adult chimpanzees (Pan troglodytes) with severe deprivation history: I. An individual approach": Correction to Kalcher-Sommersguter et al. (2011).

Developmental Psychology — Sun, 10 Jul 2011 23:00:00 +0100

Reports an error in "Social competence of adult chimpanzees (Pan troglodytes) with severe deprivation history: I. An individual approach" by Elfriede Kalcher-Sommersguter, Signe Preuschoft, Karl Crailsheim and Cornelia Franz (Developmental Psychology, 2011[Jan], Vol 47[1], 77-90). Table 4 (p. 86) contained an error. The development of stationary vicinity for LD (late deprived) chimpanzees is misstated as ns. However, the difference is highly significant as p = .008. (The following abstract of the original article appeared in record 2011-00627-005.) Early social deprivation in highly social mammals interferes with their varying needs for security and stimulation. Toleration of social stimulation was studied in 18 adult ex-laboratory chimpanzees, who had been deprived for 16 to 27 years, dur...

Classroom emotional climate as a moderator of anxious solitary children's longitudinal risk for peer exclusion: A child × environment model.

Developmental Psychology — Mon, 20 Jun 2011 04:00:00 +0100

This study tests the ability of classroom emotional climate to moderate anxious solitary children's risk for peer exclusion over a 3-year period from 3rd through 5th grade. Six hundred eighty-eight children completed peer nominations for anxious solitude and peer exclusion in the fall and spring semesters of each grade, and observations of classroom emotional climate were conducted at the same time points. Results revealed a positive relation between anxious solitude and peer exclusion in the fall semester of each grade. However, in classrooms with supportive versus unsupportive emotional climates, this relation demonstrated a different pattern of change from fall to spring semesters. In classrooms with supportive emotional climates, children with high versus low levels of anxious solitude...

Perceptual load influences selective attention across development.

Developmental Psychology — Mon, 20 Jun 2011 04:00:00 +0100

This study examined visual selective attention across development from 7 years of age to adulthood. Specifically, the author examined if changes in processing as a function of selective attention are similarly influenced by perceptual load across development. Participants were asked to complete a task at either low or high perceptual load while processing of an unattended probe stimulus was examined using event related potentials. Similar to adults, children and teens showed reduced processing of the unattended stimulus as perceptual load increased at the P1 visual component. However, although there were no qualitative differences in changes in processing, there were quantitative differences, with shorter P1 latencies in teens and adults compared with children, suggesting increases in the ...

Inhibition and exuberance in preschool classrooms: Associations with peer social experiences and changes in cortisol across the preschool year.

Developmental Psychology — Mon, 20 Jun 2011 04:00:00 +0100

Associations between behavioral inhibition and activity of the hypothalamic-pituitary-adrenocortical (HPA) system, a stress-sensitive neuroendocrine system indexed by salivary cortisol, have varied widely across studies. In the current study, we examined the role of peer social experiences in moderating patterns of association between inhibition/risk-aversion and cortisol reactivity. As expected based on previous research, preschool children (N = 165, 78 boys, 87 girls, 3.0–5.0 years) had significantly different social experiences in their preschool classrooms depending on temperament. Highly inhibited/risk-averse children were less socially integrated, less dominant, and less involved in aggressive encounters than both average and highly exuberant/risk-seeking children, but they were no...

Trajectories of family management practices and early adolescent behavioral outcomes.

Developmental Psychology — Mon, 20 Jun 2011 04:00:00 +0100

Stage–environment fit theory was used to examine the reciprocal lagged relations between family management practices and early adolescent problem behavior during the middle school years. In addition, the potential moderating roles of family structure and of gender were explored. Hierarchical linear modeling was used to describe patterns of growth in family management practices and adolescents' behavioral outcomes and to detect predictors of interindividual differences in initial status and rate of change. The sample comprised approximately 1,000 adolescents between ages 11 years and 15 years. The results indicated that adolescents' antisocial behaviors and substance use increased and their positive behavioral engagement decreased over time. As adolescent age increased, parental knowledge...

Does money really matter? Estimating impacts of family income on young children's achievement with data from random-assignment experiments.

Developmental Psychology — Mon, 20 Jun 2011 04:00:00 +0100

Social scientists do not agree on the size and nature of the causal impacts of parental income on children's achievement. We revisit this issue using a set of welfare and antipoverty experiments conducted in the 1990s. We utilize an instrumental variables strategy to leverage the variation in income and achievement that arises from random assignment to the treatment group to estimate the causal effect of income on child achievement. Our estimates suggest that a $1,000 increase in annual income increases young children's achievement by 5%–6% of a standard deviation. As such, our results suggest that family income has a policy-relevant, positive impact on the eventual school achievement of preschool children. (PsycINFO Database Record (c) 2011 APA, all rights reserved) (Source: Development...

Young adult identities and their pathways: A developmental and life course model.

Developmental Psychology — Mon, 13 Jun 2011 04:00:00 +0100

This study examines the developmental synchrony of these 2 processes. In a longitudinal sample of young adults from Add Health (ages 18–22), a person-centered analysis of indicators of these dimensions identified 4 identity profiles. Two depict early and late patterns of identity; the others represent contrasting types of discordance: pseudo-adult, with subjective age more advanced than maturation level, and anticipatory, with subjective age less advanced than maturational level. The profiles vary by gender, socioeconomic status, and race–ethnicity, as well as by adolescent (ages 12–16) pubertal maturation, psychosocial adjustment, and family context. These results provide support for a more holistic, interdisciplinary understanding of adult identity and show that young adult identit...

Developmental trajectories in toddlers' self-restraint predict individual differences in executive functions 14 years later: A behavioral genetic analysis.

Developmental Psychology — Mon, 13 Jun 2011 04:00:00 +0100

We examined whether self-restraint in early childhood predicted individual differences in 3 executive functions (EFs; inhibiting prepotent responses, updating working memory, and shifting task sets) in late adolescence in a sample of approximately 950 twins. At ages 14, 20, 24, and 36 months, the children were shown an attractive toy and told not to touch it for 30 s. Latency to touch the toy increased with age, and latent class growth modeling distinguished 2 groups of children that differed in their latencies to touch the toy at all 4 time points. Using confirmatory factor analysis, we decomposed the 3 EFs (measured with latent variables at age 17 years) into a Common EF factor (isomorphic to response inhibition ability) and 2 factors specific to updating and shifting. Less-restrained ch...

Individual differences in early adolescents' beliefs in the legitimacy of parental authority.

Developmental Psychology — Mon, 13 Jun 2011 04:00:00 +0100

Adolescents differ in the extent to which they believe that parents have legitimate authority to impose rules restricting adolescents' behavior. The purpose of the current study was to test predictors of individual differences in legitimacy beliefs during the middle school years. Annually, during the summers following Grades 5, 6, and 7, early adolescents (n = 218; 51% female, 47% African American, 73% in 2-parent homes) reported their beliefs regarding the legitimacy of parents' rules that restrict and monitor adolescents' free time activities. Cross-lagged analyses revealed that legitimacy beliefs were bidirectionally associated with independent decision making, psychological control, antisocial peer involvement, and resistance to control. Legitimacy beliefs declined more rapidly during ...

Infants learn about objects from statistics and people.

Developmental Psychology — Mon, 13 Jun 2011 04:00:00 +0100

In laboratory experiments, infants are sensitive to patterns of visual features that co-occur (e.g., Fiser & Aslin, 2002). Once infants learn the statistical regularities, however, what do they do with that knowledge? Moreover, which patterns do infants learn in the cluttered world outside of the laboratory? Across 4 experiments, we show that 9-month-olds use this sensitivity to make inferences about object properties. In Experiment 1, 9-month-old infants expected co-occurring visual features to remain fused (i.e., infants looked longer when co-occurring features split apart than when they stayed together). Forming such expectations can help identify integral object parts for object individuation, recognition, and categorization. In Experiment 2, we increased the task difficulty by present...

Similarity in depressive symptoms in adolescents' friendship dyads: Selection or socialization?

Developmental Psychology — Mon, 30 May 2011 04:00:00 +0100

This study examined friendship selection and socialization as mechanisms explaining similarity in depressive symptoms in adolescent same-gender best friend dyads. The sample consisted of 1,752 adolescents (51% male) ages 12–16 years (M = 13.77, SD = 0.73) forming 487 friend dyads and 389 nonfriend dyads (the nonfriend dyads served as a comparison group). To test our hypothesis, we applied a multigroup actor–partner interdependence model to 3 friendship types that started and ended at different time points during the 2 waves of data collection. Results showed that adolescents reported levels of depressive symptoms at follow-up that were similar to those of their best friends. Socialization processes explained the increase in similarity exclusively in female dyads, whereas no evidence fo...

Individual differences in boys' and girls' timing and tempo of puberty: Modeling development with nonlinear growth models.

Developmental Psychology — Mon, 30 May 2011 04:00:00 +0100

Pubertal development is a nonlinear process progressing from prepubescent beginnings through biological, physical, and psychological changes to full sexual maturity. To tether theoretical concepts of puberty with sophisticated longitudinal, analytical models capable of articulating pubertal development more accurately, we used nonlinear mixed-effects models to describe both the timing and tempo of pubertal development in the sample of 364 White boys and 373 White girls measured across 6 years as part of the National Institute of Child Health and Human Development Study of Early Child Care and Youth Development. Individual differences in timing and tempo were extracted with models of logistic growth. Differential relations emerged for how boys' and girls' timing and tempo of development wer...

Maternal depressive symptomatology and child behavior: Transactional relationship with simultaneous bidirectional coupling.

Developmental Psychology — Mon, 30 May 2011 04:00:00 +0100

The present study investigated reciprocal relationships between adolescent mothers and their children's well-being through an analysis of the coupling relationship of mothers' depressive symptomatology and children's internalizing and externalizing behaviors. Unlike studies using discrete time analyses, the present study used dynamical systems to model time continuously, which allowed for the study of dynamic, transactional effects between members of each dyad. Findings provided evidence of coupling between maternal depressive symptoms and children's behaviors. The most robust finding was that as maternal depressive symptoms became more or less severe, children's behavior problems increased or decreased in a reciprocal manner. Results from this study extended upon theoretical contributions...

Culture and the sequence of steps in theory of mind development.

Developmental Psychology — Mon, 30 May 2011 04:00:00 +0100

To examine cultural contrasts in the ordered sequence of conceptual developments leading to theory of mind (ToM), we compared 135 3- to 6-year-olds (77 Australians; 58 Iranians) on an established 5-step ToM scale (Wellman & Liu, 2004). There was a cross-cultural difference in the sequencing of ToM steps but not in overall rates of ToM mastery. In line with our predictions, the children from Iran conformed to a distinctive sequence previously observed only in children in China. In contrast to the case with children from Australia (and the United States), knowledge access was understood earlier than opinion diversity in children from Iran, consistent with this collectivist culture's emphasis on filial respect, dispute avoidance, and acquiring knowledge. Having a sibling was linked with faste...

The role of task persistence in young adolescence for successful educational and occupational attainment in middle adulthood.

Developmental Psychology — Sun, 29 May 2011 23:00:00 +0100

The main purpose of the present study was to investigate the importance of task persistence in young adolescence for successful educational and occupational attainment in middle adulthood. Data from age 13 (N = 1,092) and adult age (age 43 for women, N = 569 and age 47 for men, N = 393) were taken from the Swedish longitudinal research program entitled “Individual Development and Adaptation.” In line with previous research, task persistence was found to be related to changes in grades between age 13 and age 16, over and above other childhood factors. Task persistence at age 13 was also a significant predictor of both income and occupational level in middle adulthood for the men, controlling for a number of childhood factors (including intelligence), and even when educational attainment...

Personality types in adolescence: Change and stability and links with adjustment and relationships: A five-wave longitudinal study.

Developmental Psychology — Sun, 29 May 2011 23:00:00 +0100

We examined change and stability of the 3 personality types identified by Block and Block (1980) and studied their links with adjustment and relationships. We used data from a 5-wave study of 923 early-to-middle and 390 middle-to-late adolescents, thereby covering the ages of 12–20 years. In Study 1, systematic evidence for personality change was found, in that the number of overcontrollers and undercontrollers decreased, whereas the number of resilients increased. Undercontrol, in particular, was found to peak in early-to-middle adolescence. We also found substantial stability of personality types, because 73.5% of the adolescents had the same personality type across the 5 waves. Personality change was mainly characterized by 2 transitions: overcontrol → resiliency and undercontrol �...

Antagonistic pleiotropy at the human IL6 promoter confers genetic resilience to the pro-inflammatory effects of adverse social conditions in adolescence.

Developmental Psychology — Sun, 29 May 2011 23:00:00 +0100

This study identifies a protective effect of the same polymorphism in 17- to 19-year-old adolescents confronting socioeconomic adversity. Over 60% of the environmental risk contribution to the IL6 × Socioeconomic Status interaction could be accounted for by interpersonal stress and adult role burden. Thus, the IL6 −174G allele does not represent an undifferentiated risk factor but instead sensitizes inflammatory biology to socioenvironmental conditions, conferring either genetic vulnerability or resilience depending on the developmental “somatic environment” that interacts with social conditions to influence gene expression. (PsycINFO Database Record (c) 2011 APA, all rights reserved) (Source: Developmental Psychology)

The contribution of extracurricular activities to adolescent friendships: New insights through social network analysis.

Developmental Psychology — Sun, 29 May 2011 23:00:00 +0100

Extracurricular activities are settings that are theorized to help adolescents maintain existing friendships and develop new friendships. The overarching goal of the current investigation was to examine whether coparticipating in school-based extracurricular activities supported adolescents' school-based friendships. We used social network methods and data from the National Longitudinal Study of Adolescent Health to examine whether dyadic friendship ties were more likely to exist among activity coparticipants while controlling for alternative friendship processes, namely dyadic homophily (e.g., demographic and behavioral similarities) and network-level processes (e.g., triadic closure). Results provide strong evidence that activities were associated with current friendships and promoted th...

Developmental changes in anger expression and attention focus: Learning to wait.

Developmental Psychology — Sun, 29 May 2011 23:00:00 +0100

Being able to wait is an essential part of self-regulation. In the present study, the authors examined the developmental course of changes in the latency to and duration of target-waiting behaviors by following 65 boys and 55 girls from rural and semirural economically strained homes from ages 18 months to 48 months. Age-related changes in latency to and duration of children's anger expressions and attention focus (e.g., self-initiated distraction) during an 8-min wait for a gift were found. On average, at 18 and 24 months of age, children were quick to react angrily and slower to shift attention away from the desired object than they were at later ages. Over time, children were quicker to distract themselves. By 36 months, distractions occurred before children expressed anger, and anger e...

Imitation in young children: When who gets copied is more important than what gets copied.

Developmental Psychology — Sun, 29 May 2011 23:00:00 +0100

Unlike other animals, human children will copy all of an adult's goal-directed actions, including ones that are clearly unnecessary for achieving the demonstrated goal. Here we highlight how social affiliation is key to this species-specific behavior. Preschoolers watched 2 adults retrieve a toy from a novel apparatus. One adult included irrelevant actions in her demonstration; the other only used actions causally related to opening the apparatus. After both adults took turns demonstrating, 1 left the test room, and the remaining adult gave the apparatus to the child. Children reproduced the irrelevant actions only when given the apparatus by the adult who had demonstrated them, even though the departed adult's actions emphasized how unnecessary these redundant actions were. Our results hi...

Elevated social anxiety among early maturing girls.

Developmental Psychology — Sun, 22 May 2011 23:00:00 +0100

Adolescence is a key period in terms of the development of anxiety psychopathology. An emerging literature suggests that early pubertal maturation is associated with enhanced vulnerability for anxiety symptomatology, although few studies have examined this association with regard to social anxiety. Accordingly, the current study was designed to further elucidate the relation between pubertal timing and social anxiety, with a focus on clarifying the role of gender. Participants were 138 adolescents (ages 12–17 years) recruited from the general community. Level of social anxiety was examined as a function of gender and within-sample pubertal timing. As expected, early maturing girls evidenced significantly higher social anxiety, compared with on-time girls and early maturing boys, and no o...

Adolescents' implicit theories predict desire for vengeance after peer conflicts: Correlational and experimental evidence.

Developmental Psychology — Sun, 22 May 2011 23:00:00 +0100

Why do some adolescents respond to interpersonal conflicts vengefully, whereas others seek more positive solutions? Three studies investigated the role of implicit theories of personality in predicting violent or vengeful responses to peer conflicts among adolescents in Grades 9 and 10. They showed that a greater belief that traits are fixed (an entity theory) predicted a stronger desire for revenge after a variety of recalled peer conflicts (Study 1) and after a hypothetical conflict that specifically involved bullying (Study 2). Study 3 experimentally induced a belief in the potential for change (an incremental theory), which resulted in a reduced desire to seek revenge. This effect was mediated by changes in bad-person attributions about the perpetrators, feelings of shame and hatred, a...

Preschoolers distribute scarce resources according to the moral valence of recipients' previous actions.

Developmental Psychology — Sun, 22 May 2011 23:00:00 +0100

Children aged 3 years and 4½ years old watched a puppet, struggling to achieve goals, who was helped by a 2nd puppet and violently hindered by a 3rd. The children then distributed wooden biscuits between the helper and hinderer. In Experiment 1, when distributing a small odd number of biscuits, 4½-year-olds (N = 16) almost always gave more to the helper. Children verbally justified their unequal distributions by reference to the helper's prosocial behavior or the hinderer's antisocial behavior. In Experiment 2, when biscuits were more plentiful, 4½-year-olds (N = 16) usually gave equal numbers to helper and hinderer, indicating that 4½-year-olds usually preferred not to distribute unequally unless forced to by resource scarcity. Three-year-olds (N = 16 in Experiment 1, N = 20 in Experi...

Visual experience influences 12-month-old infants' perception of goal-directed actions of others.

Developmental Psychology — Sun, 22 May 2011 23:00:00 +0100

In the present study, we investigated whether infants' own visual experiences affected their perception of the visual status of others engaging in goal-directed actions. In Experiment 1, infants viewed video clips of successful and failed goal-directed actions performed by a blindfolded adult, with half the infants having previously experienced being blindfolded. The results showed that 12-month-old infants who were previously blindfolded preferred to look longer at the demonstrator's successful actions, whereas no such preference was observed in 8-month-old infants. In Experiment 2, infants watched the same 2 actions when the adult demonstrator was not blindfolded. The responses of 12-month-old infants were the opposite of those observed in Experiment 1: They showed a preference for the f...

Verbal knowledge, working memory, and processing speed as predictors of verbal learning in older adults.

Developmental Psychology — Mon, 16 May 2011 04:00:00 +0100

The present study aimed at modeling individual differences in a verbal learning task by means of a latent structured growth curve approach based on an exponential function that yielded 3 parameters: initial recall, learning rate, and asymptotic performance. Three cognitive variables—speed of information processing, verbal knowledge, working memory—and the participant's age were included in the model in order to explain individual differences in the learning parameters. The data come from the second wave of the Zurich Longitudinal Study on Cognitive Aging (D. Zimprich, Martin, et al., 2008) comprising 334 participants ranging in age from 66 to 81 years (M = 74.43, SD = 4.41). Among the logistic, the Gompertz, and the hyperbolic function, the exponential function described the data best....

The role of frequency information and teleological reasoning in infants' and adults' action prediction.

Developmental Psychology — Sun, 15 May 2011 23:00:00 +0100

This study investigates the contribution of frequency learning and teleological reasoning to action prediction in 9-month-old infants and adults. Participants observed how an agent repeatedly walked to a goal while taking the longer of 2 possible paths, as the shorter and more efficient path was impassable. In the subsequent test phase, both paths were passable. In the 1st test trial, infants and adults anticipated the agent to take the longer path. Unlike adults, infants kept anticipating movements to the longer path even after observing that the agent now took the more efficient path, indicating that the frequency of previous observations dominates action prediction. These results provide evidence, contrary to existing claims in the developmental literature, that frequency learning under...

Gender differences in motivational pathways to college for middle class African American youths.

Developmental Psychology — Sun, 15 May 2011 23:00:00 +0100

Using a sample of predominantly middle-class African American adolescents and parents (N = 424), the authors tested a path model linking parental expectations for children's future educational attainment, youths' motivation during Grade 11, and youths' subsequent on-time postsecondary educational progress. Parents' expectations were positively related to adolescents' educational attainment aspirations, attainment expectations, utility values (i.e., beliefs about the usefulness of education), and perceptions of racial barriers to upward mobility. Relationships between parents' expectations and youths' aspirations and expectations were mediated by youths' perceptions of parents' expectations. For boys, but not girls, Grade 11 educational expectations and utility values each uniquely predicte...

Consistency of hand-preference across the early years: Long-term relationship to verbal intelligence and reading achievement in girls.

Developmental Psychology — Sun, 15 May 2011 23:00:00 +0100

The relationship between consistency of hand preference, left hemispheric specialization, and cognitive functioning was examined in an ongoing longitudinal investigation. Children were classified as consistent or inconsistent in their hand preference across 5 assessments from ages 18 to 42 months. Findings demonstrated that (a) this early classification continued to reveal differences in cognitive functioning from 10 to 17 years but only for girls, (b) consistent girls' performances were continually higher relative to the inconsistent girls on measures of verbal intelligence and reading achievement, (c) differences between the female groups were specifically related to left-hemispheric language specialization, and (d) one factor influencing the consistent girls' development may be the amou...

Early mathematics achievement trajectories: English-language learner and native English-speaker estimates, using the Early Childhood Longitudinal Survey.

Developmental Psychology — Sun, 15 May 2011 23:00:00 +0100

This study used data from the Early Childhood Longitudinal Survey, Kindergarten Class of 1998–1999, to (a) estimate mathematics achievement trends through 5th grade in the population of students who are English-language proficient by the end of kindergarten, (b) compare trends across primary language groups within this English-language proficient group, (c) evaluate the effect of low socioeconomic status (SES) for English-language proficient students and within different primary language groups, and (d) estimate language-group trends in specific mathematics skill areas. The group of English-language proficient English-language learners (ELLs) was disaggregated into native Spanish speakers and native speakers of Asian languages, the 2 most prevalent groups of ELLs in the United States. Re...

Purpose as a form of identity capital for positive youth adjustment.

Developmental Psychology — Sun, 15 May 2011 23:00:00 +0100

Having a sense of purpose has been discussed as a developmental asset for youth and as an outgrowth of establishing a sense of identity. Using the identity capital model as a theoretical framework, 3 studies examined purpose as a mediator in the relationship between identity and well-being among adolescents and emerging adults. In Study 1A, (n = 110), purpose commitment was positively associated with positive affect, hope, happiness among adolescents, and fully mediated associations between identity commitment and these indices of well-being. These findings were replicated in Study 1B (n = 398), with a sample of emerging adults and using different measures of well-being. In Study 2, multilevel random coefficient modeling analyses examined the role of identity and purpose in the daily lives...

Examining the dimensionality of effortful control in preschool children and its relation to academic and socioemotional indicators.

Developmental Psychology — Sun, 08 May 2011 23:00:00 +0100

Effortful control (EC) is an important developmental construct, associated with socioemotional growth, academic performance, and psychopathology. EC is defined as the ability to execute goal-directed behavior to inhibit or delay a prepotent response in favor of a subdominant response. Extant research indicates that EC may be multidimensional. Confirmatory factor analysis with a sample of 234 preschoolers was used to determine if tasks designed to measure EC were best described by hot (affectively salient) and cool (affectively neutral) dimensions or by a single factor. Analyses revealed that EC is best described by a single factor, even when variance associated with children's language skills was removed. This EC factor was strongly related to measures of academic performance and significa...

Verbal deception from late childhood to middle adolescence and its relation to executive functioning skills.

Developmental Psychology — Sun, 08 May 2011 23:00:00 +0100

The present investigation examined 8- to 16-year-olds' tendency to lie, the sophistication of their lies, and related cognitive factors. Participants were left alone and asked not to look at the answers to a test, but the majority peeked. The researcher then asked a series of questions to examine whether the participants would lie about their cheating and, if they did lie, evaluate the sophistication of their lies. Additionally, participants completed measures of working memory, inhibitory control, and planning skills. Results revealed that the sophistication of 8- to 16-year-olds' lies, but not their decision to lie, was significantly related to executive functioning skills. (PsycINFO Database Record (c) 2011 APA, all rights reserved) (Source: Developmental Psychology)

What comes first? How selective attentional processes regulate the activation of a motor routine in a manual search task.

Developmental Psychology — Sun, 01 May 2011 23:00:00 +0100

An intriguing error has been observed in toddlers presented with a 3-location search task involving invisible displacements of an object, namely, the C-not-B task. In 3 experiments, the authors investigated the dynamics of the attentional focus process that is suspected to be involved in this task. In Experiment 1, 2.5-year-old children were tested on a new adaptation of the C-not-B task in which the opening of the experimenter's hand between cloths provided visual information about the correct localization of the toy. Children still emitted a strong response bias toward the last hiding place. In Experiment 2, 2.5-year-old children were tested on a new version of the task that was designed to investigate the role of the central location in the task. This 2nd experiment demonstrated that ch...

Individual differences in the development of sensation seeking and impulsivity during adolescence: Further evidence for a dual systems model.

Developmental Psychology — Sun, 01 May 2011 23:00:00 +0100

Consistent with social neuroscience perspectives on adolescent development, previous cross-sectional research has found diverging mean age-related trends for sensation seeking and impulsivity during adolescence. The present study uses longitudinal data on 7,640 youth from the National Longitudinal Study of Youth Children and Young Adults, a nationally representative sample assessed biennially from 1994 to 2006. Latent growth curve models were used to investigate mean age-related changes in self-reports of impulsivity and sensation seeking from ages 12 to 24 years, as well individual differences in these changes. Three novel findings are reported. First, impulsivity and sensation seeking showed diverging patterns of longitudinal change at the population level. Second, there was substantial ...

Cohort differences in cognitive aging and terminal decline in the Seattle Longitudinal Study.

Developmental Psychology — Sun, 24 Apr 2011 23:00:00 +0100

Life span researchers have long been interested in how and why fundamental aspects of human ontogeny differ between cohorts of people who have lived through different historical epochs. When examined at the same age, later born cohorts are often cognitively and physically fitter than earlier born cohorts. Less is known, however, about cohort differences in the rate of cognitive aging and if, at the very end of life, pervasive mortality-related processes overshadow and minimize cohort differences. We used data on 5 primary mental abilities from the Seattle Longitudinal Study (Schaie, 2005) to compare both age-related and mortality-related changes between earlier born cohorts (1886–1913) and later born cohorts (1914–1948). Our models covary for several individual and cohort differences i...

Susceptibility to peer influence: Using a performance-based measure to identify adolescent males at heightened risk for deviant peer socialization.

Developmental Psychology — Sun, 03 Apr 2011 23:00:00 +0100

In this study, a performance-based index from an experimental paradigm was used to directly measure adolescents' susceptibility to peers. A total of 36 adolescent boys participated in a “chat room” experiment in which they ostensibly were exposed to deviant or risky social norms communicated either by high-peer-status (i.e., popular, well-liked) or low-peer-status (i.e., unpopular, disliked) grade mates who actually were electronic confederates. Changes in adolescents' responses before and after exposure to peer norms were used as a measure of peer influence susceptibility. These same adolescents completed a questionnaire assessment at the study outset and again 18 months later to assess their actual engagement in deviant behavior and their perceptions of their best friend's engagement...

Three- and 4-year-olds encode modeled actions in two ways leading to immediate imitation and delayed emulation.

Developmental Psychology — Sun, 03 Apr 2011 23:00:00 +0100

When copying a model's behavior with a tool, children tend to imitate (copy the specific actions to replicate the model's goal) rather than emulate (bring about the model's goal in the most efficient way). Tasks producing these findings test children immediately after the behavior is modeled. In 2 experiments, we investigated children's copying behavior after a delay (of a week). In Experiment 1 (n = 90), we found that although 3- and 4-year-olds often imitate in the short term, they are more likely to emulate in the long term. Data from Experiment 2 (n = 80) were consistent with children remembering actions that were relevant to a causal narrative of the task. Overall, our data suggest that children simultaneously encode modeled behavior in 2 ways that lead to both imitation and emulation...

Which fearful toddlers should we worry about? Context, fear regulation, and anxiety risk.

Developmental Psychology — Sun, 03 Apr 2011 23:00:00 +0100

In the current study, the author tested a model of risk for anxiety in fearful toddlers characterized by the toddlers' regulation of the intensity of withdrawal behavior across a variety of contexts. Participants included low-risk 24-month-old toddlers (N = 111) followed longitudinally each year through the fall of their kindergarten year. The key hypothesis was that being fearful in situations that are relatively low in threat (i.e., are predictable and controllable and in which children have many coping resources) is an early precursor to risk for anxiety development as measured by parental and teacher reports of children's anxious behaviors in kindergarten. Results supported the prediction such that it is not how much fear is expressed but when and how the fear is expressed that is impo...

Prospective associations between friendship adjustment and social strategies: Friendship as a context for building social skills.

Developmental Psychology — Sun, 27 Mar 2011 23:00:00 +0100

The proposal that friendships provide a context for the development of social skills is widely accepted. Yet little research exists to support this claim. In the present study, children and adolescents (N = 912) were presented with vignettes in which a friend encountered a social stressor and they could help the friend and vignettes in which they encountered a stressor and could seek help from the friend. Social strategies in response to these vignettes were assessed in the fall and spring of the school year. Different indicators of friendship adjustment had unique effects on youths' strategies in response to helping tasks. Whereas having more friends predicted decreases in avoidant or hostile strategies, having high-quality friendships predicted emotionally engaged strategies that involve...

Accuracy, confidence, and calibration: How young children and adults assess credibility.

Developmental Psychology — Sun, 27 Mar 2011 23:00:00 +0100

Do children and adults use the same cues to judge whether someone is a reliable source of information? In 4 experiments, we investigated whether children (ages 5 and 6) and adults used information regarding accuracy, confidence, and calibration (i.e., how well an informant's confidence predicts the likelihood of being correct) to judge informants' credibility. We found that both children and adults used information about confidence and accuracy to judge credibility; however, only adults used information about informants' calibration. Adults discredited informants who exhibited poor calibration, but children did not. Requiring adult participants to complete a secondary task while evaluating informants' credibility impaired their ability to make use of calibration information. Thus, children...

The primacy of thinking about possibilities in the development of reasoning.

Developmental Psychology — Sun, 27 Mar 2011 23:00:00 +0100

One of the main tenets of the mental model theory is that when individuals reason, they think about possibilities. According to this theory, reasoning on what is possible from the truth of a sentence would be psychologically basic, whereas reasoning the other way round, on the truth or falsity of a sentence from a given state of affairs, would require some meta-ability. The present study tested the developmental corollary of this theory, which is that reasoning about possibilities should develop first, whereas the development of reasoning about truth-value should be delayed. For this purpose, 3rd, 6th, and 9th graders as well as adults were presented with tasks requiring them to evaluate either the possibilities compatible with conditional sentences or the truth-value of these sentences fr...

Developmental and cross-situational stability in infant pigtailed macaque temperament.

Developmental Psychology — Sun, 27 Mar 2011 23:00:00 +0100

We assessed developmental stability and context generalizability of temperament in pigtailed macaques (Macaca nemestrina) from the University of Washington Infant Primate Research Lab. A principal components analysis condensed 6 behavioral measures into 2 components, interpreted as reactivity and boldness. Changes in these measures over the 1st 10 months of development showed a trend toward calmer and bolder behavior with age, with significant individual variation in the pattern of change. Boldness showed a quadratic pattern of change, whereas reactivity decreased linearly. We also studied the relationship between temperament and response to a novelty probe. The magnitude of the response to the novelty probe decreased slightly over time, and boldness and reactivity in a familiar setting di...

Maternal personality, parenting cognitions, and parenting practices.

Developmental Psychology — Sun, 27 Mar 2011 23:00:00 +0100

A community sample of 262 European American mothers of firstborn 20-month-olds completed a personality inventory and measures of parenting cognitions (knowledge, self-perceptions, and reports about behavior) and was observed in interaction with their children from which measures of parenting practices (language, sensitivity, affection, and play) were independently coded. Factor analyses of the personality inventory replicated extraction of the 5-factor model of personality (Openness, Neuroticism, Extraversion, Agreeableness, and Conscientiousness). When controlling for sociodemographic characteristics, the 5 personality factors qua variables and in patterns qua clusters related differently to diverse parenting cognitions and practices, supporting the multidimensional, modular, and specific...

Developmental change in working memory strategies: From passive maintenance to active refreshing.

Developmental Psychology — Mon, 21 Mar 2011 00:00:00 +0100

Change in strategies is often mentioned as a source of memory development. However, though performance in working memory tasks steadily improves during childhood, theories differ in linking this development to strategy changes. Whereas some theories, such as the time-based resource-sharing model, invoke the age-related increase in use and efficiency of a strategy of active maintenance of memory traces, other theories, such as the task-switching model, do not mention strategy change. According to these models, either the cognitive load of the task or the duration of maintenance would account for recall performance. In the present study, we varied orthogonally these 2 factors. The results revealed that a different and unique factor affected recall performance at different ages: the duration ...

Intact and impaired mechanisms of action understanding in autism.

Developmental Psychology — Mon, 14 Mar 2011 00:00:00 +0100

Typically developing children understand and predict others' behavior by extracting and processing relevant information such as the logic of their actions within the situational constraints and the intentions conveyed by their gaze direction and emotional expressions. Children with autism have difficulties understanding and predicting others' actions. With the use of eye tracking and behavioral measures, we investigated action understanding mechanisms used by 18 children with autism and a well-matched group of 18 typically developing children. Results showed that children with autism (a) consider situational constraints in order to understand the logic of an agent's action and (b) show typical usage of the agent's emotional expressions to infer his or her intentions. We found (c) subtle at...

Men's media use, sexual cognitions, and sexual risk behavior: Testing a mediational model.

Developmental Psychology — Mon, 07 Mar 2011 00:00:00 +0100

This study sought to expand current approaches by sampling college students instead of high school students, by investigating a range of sexual behaviors and media formats, and by testing a model that featured sexual cognitions as mediators. We tested our model with a sample of 796 heterosexual, male college students who reported on their regular consumption of 4 media (prime-time TV programs, music videos, movies, and men's magazines); their attitudes toward abstinence, the male sexual role, and nonrelational sex; their perceptions of peer sexual behavior; and several aspects of their sexual behavior (e.g., number of sexual partners). Findings revealed strong support for our mediated model, with exposure to men's magazines and movies contributing most strongly to their sexual cognitions, ...

Relationships between adolescent sexual outcomes and exposure to sex in media: Robustness to propensity-based analysis.

Developmental Psychology — Mon, 07 Mar 2011 00:00:00 +0100

Adolescent sexual health is a substantial problem in the United States, and two recent studies have linked adolescent sexual behavior and/or outcomes to youths' exposure to sex in the media. Both studies had longitudinal survey designs and used covariate-adjusted regression analysis. Steinberg and Monahan (2011) reanalyzed data from one of these studies (Brown et al., 2006) using a propensity score approach, arguing that this method better addresses the possibility of unobserved confounders. On the basis of their reanalysis, which found no relationship between media exposure and sexual behavior, Steinberg and Monahan concluded that “Adolescents' Exposure to Sexy Media Does Not Hasten the Initiation of Sexual Intercourse” (p. 562). We subjected data from the second study (Chandra et al....

Premature dissemination of advice undermines our credibility as scientists: Reply to Brown (2011) and to Collins, Martino, and Elliott (2011).

Developmental Psychology — Mon, 07 Mar 2011 00:00:00 +0100

In our reanalysis of data from the Brown et al. (2006) study (Steinberg & Monahan, 2011), we found no support for the contention that adolescents' exposure to sexy media content hastens their sexual debut. In their critiques of our article, Brown (2011) and Collins, Martino, and Elliott (2011) both questioned some of the decisions we made with respect to how our propensity score analyses were conducted. We point out that the way in which we conducted our analyses is consistent with standard practice in the field. More important, we argue that when small variations in data analytic strategies make significant findings appear and disappear, it is premature to issue advice to parents, practitioners, and policymakers. (PsycINFO Database Record (c) 2011 APA, all rights reserved) (Source: Develo...

The media do matter: Comment on Steinberg and Monahan (2011).

Developmental Psychology — Mon, 07 Mar 2011 00:00:00 +0100

Steinberg and Monahan's (2011) reanalysis of the Teen Media longitudinal survey of adolescents does not meet prevailing standards for propensity score analysis and therefore does not undermine the original conclusions of the Brown, L'Engle, Pardun, Guo, Kenneavy, and Jackson (2006) analysis. The media do matter in the sexual socialization of adolescents. (PsycINFO Database Record (c) 2011 APA, all rights reserved) (Source: Developmental Psychology)

Propensity scoring and the relationship between sexual media and adolescent sexual behavior: Comment on Steinberg and Monahan (2011).

Developmental Psychology — Mon, 07 Mar 2011 00:00:00 +0100

Longitudinal research has demonstrated a link between exposure to sexual content in media and subsequent changes in adolescent sexual behavior, including initiation of intercourse and various noncoital sexual activities. Based on a reanalysis of one of the data sets involved, Steinberg and Monahan (2011) have challenged these findings. However, propensity score approaches—especially the version of this method used by Steinberg and Monahan, which lacks covariates—do not necessarily result in more accurate estimates of treatment effects than does the regression with covariates approach employed by prior research. There are also a number of problems with the specific set of analyses presented by Steinberg and Monahan and the conclusion they draw from them. In contrast to Steinberg and Mon...

Relational benefits of relational aggression: Adaptive and maladaptive associations with adolescent friendship quality.

Developmental Psychology — Mon, 07 Feb 2011 00:00:00 +0100

Two longitudinal studies examined associations between relational aggression and friendship quality during adolescence. In Study 1, 62 adolescents in Grades 6 (25.8%), 7 (32.3%), and 8 (41.9%) completed assessments of friendship affiliations, relational and overt aggression, and friendship quality at 2 time points, 1 year apart. Results using actor partner interdependence modeling indicated that high levels of relational aggression predicted increases in self-reported positive friendship quality 1 year later. In Study 2, 56 adolescents in Grades 9 (66.7%) and 10 (33.3%) attended a laboratory session with a friend in which their conversations were videotaped and coded for relationally aggressive talk. Target adolescents completed measures of positive and negative friendship quality during t...

Perception of object–context relations: Eye-movement analyses in infants and adults.