International Journal of Behavioral Development

This study employs an intra-national and cross-national, prospective, and longitudinal design to examine age, gender, region, and country variation in group mean-level continuity and individual-differences stability of emotional availability in child—mother dyads. Altogether, 220 Argentine, Italian, and US American metropolitan and rural residence mothers and their daughters and sons were observed at home when children were five and 20 months of age. Similar patterns of continuity and discontinuity of emotional availability from five to 20 months were observed across regions and countries, but not between genders. Stability of emotional availability from five to 20 months was moderate and similar across genders, regions, and countries. Universal and gender-specific developmental processes in child—mother emotional availability as revealed in intra-national and cross-national study are discussed.

This study examined how children’s aggression and prosocial behavior are related to the preference and popularity of their best friends. Participants were 1,953 fourth-graders (52.2% boys). Measures included peer nominations of friendship, peer status, overt and relational aggression, and prosocial behavior. A total of 334 reciprocal same-sex best friend dyads were identified. The Actor-Partner Interdependence Model (Kashy & Kenny, 1999) showed that best friends’ peer status significantly predicted children’s behavior. For boys, best friends’ preference was negatively associated with overt aggression, while best friends’ popularity was positively associated with overt aggression. For girls, best friends’ popularity was positively related to both relational aggression and prosocial behavior. The model also revealed high similarity between friends in both preference and popularity. This study highlighted the distinction between two dimensions of peer status in the study of friendship and peer influence in middle childhood. It also demonstrated how individual, dyad, and group characteristics can be integrated in the study of children’s social relationships.

In this three-wave longitudinal survey, we investigated bi-directional longitudinal associations between best friends and adolescents’ alcohol consumption. Additionally, since the relation between best friends and adolescents’ drinking may be stronger if adolescents have not consumed alcohol yet, we examined this relation not only with regard to continuation but also with regard to the initiation of adolescent drinking. We also hypothesized that low levels of self-esteem and self-control in youths would be related to a higher susceptibility to the impact of their best friends’ drinking. Data were used from 433 adolescents and their best friends. Results of SEM analyses did not provide evidence for bi-directional associations between best friends and adolescents’ alcohol use over time. Nevertheless, the results of additional growth curve analyses indicated that adolescents and best friends’ drinking does seem to develop in a similar fashion over time. Adolescents’ self-esteem, self-control, and gender did not moderate longitudinal associations between best friends and adolescents’ drinking. The discussion focuses on methodological and theoretical explanations for the absence of significant longitudinal relations between best friends and adolescents’ drinking.

Three studies were conducted to determine whether 7- and 9-month-old infants generalize face identity to a novel pose of the same face when only internal face sections with and without an emotional expression were presented. In Study 1, 7- and 9-month-old infants were habituated to a full frontal or three-quarter pose of a face with neutral facial expression. In Study 2, 7-month-olds were habituated to a face with a positive or negative expression. In the novelty preference test, immediately following habituation, infants were shown a pair of faces: the habituation face in a novel pose and a novel face in the same pose. Generalization of facial identity was inferred from longer fixation time to the novel face. Whereas 7-month-old infants did not dishabituate to the novel face with neutral expression, 9-month-olds fixated longer on the novel face with neutral expression (Study 1). However, when faces displayed a positive or negative expression 7-month-olds also looked longer at the novel face, indicating generalization of the habituation face to a novel pose (Study 2). Study 3 showed that 7-montholds’ generalization ability in Study 2 cannot be explained by an inability to discriminate between the two poses of the habituation face. Results showed 9- but not 7-month-olds recognized neutral looking faces in a novel pose, and 7-month-olds’ face recognition ability was enhanced by emotional facial expression.

Canadian data based on maternal reports for a nationally representative sample of 4,521 4—5-year-olds were used to examine associations among child care, family factors, and behaviors in preschool-aged children. Linear regressions testing for direct and moderated associations indicated that regulated home-based care was associated with less physical aggression and less prosocial behavior while high process quality in home-based care was associated with greater prosocial behavior. Among children in home-based settings, being in at least one additional current child care arrangement was linked with greater physical aggression, and low child care stability was linked to greater hyperactivity-inattention, internalizing behavior, and prosocial behaviors. For family factors, parenting behaviors and maternal depression were associated with greater behavioral problems while low household income was linked with greater hyperactivity-inattention among children in home-based care. There was a significant interaction between process quality and household income for physical aggression and internalizing behavior and between structure quality and parenting consistency for prosocial behavior for children in home-based care. Results suggest that child care matters for preschool behavioral outcomes, even after controlling for socio-demographic factors. High quality care appears particularly important for children in home-based care from low-income families so issues around child care quality and regulation should be considered. Findings also underscore the importance of family factors on young children’s behaviors and show that child care and family influences work together to impact child outcomes.

The aim of this study was to explore child and adolescent personality in the Russian culture, addressing gender and age differences, and to examine personality and family effects on children’s Internalizing and Externalizing problems. Parents of 1,640 Russian children aged 3—18 years completed the Inventory of Child Individual Differences measuring personality, the Strengths and Difficulties Questionnaire measuring problem behavior, and reported about family background. Girls scored higher than boys on the Conscientiousness domain and on the Intelligent and Considerate scales, but lower on Activity. In younger children, Extraversion was higher; in older children, Agreeableness, Conscientiousness and Shyness were higher; Distractibility was highest in early adolescence. The gender and age differences were small. Personality explained about 30% of variance in children’s Internalizing problems, and 50% in Externalizing problems; family factors contributed less than 4%. Internalizing Problems were linked to higher Neuroticism and lower Extraversion; Externalizing Problems were linked to higher Extraversion, lower Conscientiousness and Agreeableness. For both types of problems, harsh parenting was a risk factor, while SES and family cohesion were associated with lower problem levels. Models linking personality with children’s problem behavior were similar in preschool, middle childhood, early and late adolescence.

Using data from 195 dyads of mothers and children (age range = 8—12 years; M = 10.63) in four countries (China, India, the Philippines, and Thailand), this study examined children’s perceptions of maternal hostility as a mediator of the links between physical discipline and harsh verbal discipline and children’s adjustment. Both physical discipline and harsh verbal discipline had direct effects on mothers’ reports of children’s anxiety and aggression; three of these four links were mediated by children’s perceptions of maternal hostility. In contrast, there were no significant direct effects of physical discipline and harsh verbal discipline on children’s reports of their own anxiety and aggression. Instead, both physical discipline and harsh verbal discipline had indirect effects on the outcomes through children’s perceptions of maternal hostility. We identified a significant interaction between perceived normativeness and use of harsh verbal discipline on children’s perception of maternal hostility, but children’s perception of the normativeness of physical discipline did not moderate the relation between physical discipline and perceived maternal hostility. The effects of harsh verbal discipline were more adverse when children perceived that form of discipline as being nonnormative than when children perceived that form of discipline as being normative. Results are largely consistent with a theoretical model positing that the meaning children attach to parents’ discipline strategies is important in understanding associations between discipline and children’s adjustment, and that cultural context is associated with children’s interpretations of their parents’ behavior.

Temperamentally exuberant children may be at risk for emotion regulation problems, but this may also depend on their capacity for effortful control. To examine this issue, we assessed 72 typically-developing 3- to 5-year-olds. Child exuberance, effortful control, and emotion regulation were assessed via maternal report and observations of child behavior. Emotion regulation problems were elevated among children showing high exuberance and among children showing low effortful control. However, during a disappointing task, children with high exuberance showed stable, elevated levels of organized emotion regulation regardless of effortful control; for children with low exuberance, only those who also showed high effortful control showed comparable levels of organized emotion regulation. Implications for understanding risk and resilience associated with exuberance are discussed.

Do interventions work and for whom? For this article, we examined the influence of population heterogeneity on power in designing and evaluating interventions. On the basis of Monte Carlo simulations in Study 1, we demonstrated that the power to detect the overall intervention effect is lower for a mixture of two subpopulations than for a homogeneous population with the same average effect size. We also examined how obtaining covariate information for the outcome and risk status (i.e., latent subclass membership) affects power. For Study 2, we moved from the simulation to assess power in the design and evaluation of an intervention for antisocial children. We illustrated the importance of considering population heterogeneity because interventions have different impacts on different ‘‘classes’’ of participants. We also illustrated that power increases by including covariates that are correlated with risk status. The results provide guidelines for the design and evaluation of interventions.