Kindergarten children's emotion competence as a predictor of their academic competence in first grade.

This study examined the relation between emotion competence and academic competence and three potential mediators of this relation. In kindergarten, 193 children from elementary schools serving urban, minority, and low income students participated in an emotion competence assessment, and 142 of these children completed a follow-up assessment in first grade. The relation between teacher ratings of emotion regulation and academic competence was primarily indirect through the effect of emotion regulation on teacher ratings of attention. Peer acceptance and teacher closeness did not mediate the relations between emotion competence and academic competence. Results highlight the potential benefits of early emotion-centered prevention programs and the need to identify children with attention problems as early as possible to prevent academic difficulties. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Are impulsive adolescents differentially influenced by the good and bad of neighborhood and family?

Using the differential susceptibility perspective (Belsky & Pluess, 2009) as a guiding frame-work, age 12 neighborhood disadvantage (ND) and family characteristics (parental knowledge) were examined as moderators of the relations between age 12 youth impulsivity and the development (ages 13, 14, and 15) of positive (community activities) and negative (antisocial behavior; ASB) adolescent behavior. An interaction between ND and youth impulsivity (age 12) operated with differential susceptibility, but only for female community activities at age 13: under low levels of ND, impulsive adolescent females engaged in the highest levels of community activities, whereas under high ND, they engaged in the lowest levels. Exploratory analysis showed the association between community activities and ND to be partially related to parents' or adults' engagement in informal social controls (e.g., alerting the police with misbehavior in the neighborhood). Differential susceptibility effects were not identified for: (i) parental knowledge and impulsivity; (ii) ASB (ages 13, 14 or 15); or (iii) community involvement at ages 14 and 15. Findings provide limited evidence for impulsivity as a differential susceptibility phenotype. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Children's emotional competence and attentional competence in early elementary school.

The current study examined the relations between two aspects of emotional competence--emotion knowledge and emotion expression, and children's attentional competence during one school year. Participants were 263 first- and second-grade students at two rural elementary schools. A multiple regression analysis showed that emotion knowledge predicted attentional competence while controlling for age, gender, verbal ability, and initial levels of attentional competence. Multiple regression analyses examining predictors of peer nominations of emotion expression showed that attentional competence predicted peer nominations of happiness, sadness, and anger expression, and emotion knowledge predicted peer nominations of anger expression. Potential improvements for prevention programs and the importance of the findings for school personnel are discussed. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

A naturalistic observation study of the links between parental depressive symptoms and preschoolers' behaviors in everyday life.

Previous research has shown that parental depressive symptoms are linked to a number of negative child outcomes. However, the associations between parental depressive symptoms and actual child behaviors in everyday life remain largely unknown. The aims of this study were to investigate the links between parental depressive symptoms and everyday child behaviors and emotional language use using a novel observational methodology, and to explore the potential moderating role of parent–child conflict. We tracked the behaviors and language use of 35 preschool-aged children for two 1-day periods separated by one year using a child version of the Electronically Activated Recorder, a digital voice recorder that records ambient sounds while participants go about their daily lives. Parental depressive symptoms were positively associated with multiple problem behaviors among children (i.e., crying, acting mad, watching TV) when measured both concurrently and prospectively, and with negative emotion word use prospectively. Further, the links between parental depressive symptoms and child crying were moderated by parents' perceptions of parent–child conflict. This study offers the first empirical evidence of direct links between parental depressive symptoms and child behaviors in daily life and presents a promising research tool for the study of everyday child behaviors. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Adolescent personality as a prospective predictor of parenting: An interactionist perspective.

This study examined personality during adolescence as a predictor of later parenting of toddler-aged offspring. On the basis of empirical research on the timing of parenthood and the interactionist model (Conger & Donnellan, 2007), we examined age at parenthood and family socioeconomic status (SES) as mediators of the relation between personality and parenting. Participants were 228 emerging adults from an ongoing longitudinal study of the transition to adulthood. Later entry into parenthood and higher SES accounted for the association between personality characteristics and lower levels of harsh parenting and higher levels of positive parenting. Consistent with the interactionist model, both personality characteristics and SES-linked variables were related to interpersonal processes in families. The findings suggest that promoting adaptive personality traits during childhood and adolescence may help delay early entry into parenthood, promote higher SES, and, indirectly, foster more positive parenting of young children. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Adolescent dispositions for antisocial behavior in context: The roles of neighborhood dangerousness and parental knowledge.

This study examined an ecological perspective on the development of antisocial behavior during adolescence, examining direct, additive, and interactive effects of child and both parenting and community factors in relation to youth problem behavior. To address this goal, the authors examined early adolescent dispositional qualities as predictors of boys’ antisocial behavior within the context of parents’ knowledge of adolescent activities and neighborhood dangerousness. Antisocial behavior was examined using a multimethod latent construct that included self-reported delinquency, symptoms of conduct disorder, and court petitions in a sample of 289 boys from lower socioeconomic status backgrounds who were followed longitudinally from early childhood through adolescence. Results demonstrated direct and additive findings for child prosociality, daring, and negative emotionality, which were qualified by interactions between daring and neighborhood dangerousness, and between prosociality and parental knowledge. The findings have implications for preventive intervention approaches that address the interplay of dispositional and contextual factors to prevent delinquent behavior in adolescence. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Moderators of outcome in a brief family-centered intervention for preventing early problem behavior.

This study investigated moderators of change in an empirically supported family-centered intervention (the Family Check-Up) for problem behavior in early childhood. Participants were 731 2- to 3-year-olds (49% girls; 28% African American, 50% European American, 13% biracial) from low-income families and had been screened for risk of family stress and early-onset problem behavior. They were randomized to the Family Check-Up intervention or to a no-intervention control group. Latent growth models examined sociodemographic and parent psychological risk factors as potential moderators of change in problem behavior between ages 2, 3, and 4. Results revealed 2 moderators of intervention effectiveness. Caregivers with the lowest educational levels were more responsive to the family-centered intervention, and 2-parent families were more responsive to the intervention. Other risk factors showed no predictive effects. Overall, findings suggest that this brief family-centered intervention can be equally effective in reaching the most distressed and most disadvantaged families, compared to those who are more advantaged. However, results suggest that more attention may be needed to address the intervention needs of single parent families in reducing problem behavior in early childhood. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Polymer flow in the clearance between closely spaced candle filter elements

A mathematical model for polymer flow in the clearance between high-resistance filter elements is developed. An analytical solution is obtained for pressure and velocity profiles for Newtonian fluids. A numerical solution is obtained for elastic fluids displaying power-law behavior in viscosity and entrance pressure loss. Elasticity of the polymer melt or solution is shown to be a significant factor in, determining these profiles. An example of the model's application, using rheological data for a commercial polyethylene, is given, and the impact of clearance flow pressure losses on the mechanical side loading of the filter elements is discussed.