PROSPER delivery of universal preventive interventions with young adolescents: long-term effects on emerging adult substance misuse and associated risk behaviors.

BACKGROUND: Substance misuse and associated health-risking behaviors are prevalent in emerging adulthood. There is a knowledge gap concerning the post-high school effects of community-based delivery systems for universal preventive interventions implemented during young adolescence. This study reports effects of the PROSPER delivery system through age 19, 7.5 years past baseline. METHODS: A cohort sequential design included 28 public school districts randomly assigned to the PROSPER partnership delivery system or usual-programming conditions. PROSPER community teams implemented a family-focused intervention in 6th grade and a school-based intervention in 7th grade. Outcomes for the age 19, post-high school report included lifetime, current, and frequency of substance misuse, as well as antisocial and health-risking sexual behaviors. Intent-to-treat, multi-level analyses of covariance of point-in-time outcomes were conducted, along with analyses of risk-related moderation of intervention effects. RESULTS: Results showed emerging adults from PROSPER communities reported significantly lower substance misuse across a range of types of substances, with relative reduction rates of up to 41.0%. No significant findings were observed for associated antisocial and health-risking sexual behavior indices; or for lifetime rates of sexually transmitted infections. Risk-related moderation effects were non-significant, suggesting generally comparable outcomes across higher- and lower-risk subgroups of emerging adults. CONCLUSIONS: The PROSPER delivery system for brief universal preventive interventions has potential for public health impact by reducing long-term substance misuse, with positive results extending beyond high school.

Evaluation and community prevention coalitions: validation of an integrated Web-based/technical assistance consultant model

Community coalitions (CCs) have labored with some difficulty to demonstrate empirical evidence of effectiveness in preventing a wide range of adolescent problem behaviors. Training and technical assistance (TA) have been identified as important elements in promoting improved functioning of CCs. A reliable, valid, and inexpensive method to assess functioning of CCs has been developed and is tested in this article in the context of Pennsylvania's Communities That Care (CTC) model. A CC Web-based questionnaire was developed and administered to more than 79 communities (867 participants) and the validity and reliability were assessed through multiple means, including the use of a companion TA implementation feedback questionnaire completed by TAs assigned to each of the sites. Results indicated adequate to good psychometric properties on internal reliability of the Web-based questionnaire, moderate construct validity across different reports of functioning, and relative stability throughout the course of 1 year. Implications for a variety of community prevention coalitions interested in a relatively low-cost, user friendly, and suitable methodology for evaluating coalition functioning are discussed. In addition, areas of application for future research including linking coalition functioning with the quality and nature of technical assistance, levels of risk and protective factors, and large data sets of youth risk factor and problem behavior data are highlighted. (AU)

Relationship between perceptual differences of parenting and adolescent antisocial behavior and depressive symptoms.

The relation between adolescent negative adjustment and differences in parent-child ratings of parents' warmth and negativity was examined with a national sample of 720 families. It was predicted that perceptual differences (PDs) would be linked to more negative adjustment. Adjustment was regressed on PDs, which were calculated as absolute differences between parent and child ratings of parenting. Results showed that PDs were significantly associated with adjustment independent of the level of parenting behavior. Associations differed by gender for PDs over maternal verbal aggression. Some of the most important results were curvilinear effects indicating that both high and low, but not medium, levels of PDs are linked with maladjustment. Finally, differences between younger and older adolescents were found: The linear relationship between PDs over parental negativity and maladjustment disappeared for older adolescents.

Sibling differentiation in adolescence: implications for behavioral genetic theory.

The presence of sibling "differentiating processes"--defined as processes in which increased sibling similarity in environmental or genetic factors leads to differences in sibling outcomes-poses a challenge for standard behavioral genetic theory and research. The presence of differentiation processes may affect estimates of genetic and environmental parameters in ways that have not been fully recognized. Utilizing data from the Nonshared Environment and Adolescent Development project, this study examined whether differentiating processes existed for seven composite indices of positive and negative adolescent adjustment. The 720 sibling pairs in the study were broken down into groups by age difference (0-4 years) between siblings. The hypothesis that siblings close in age would demonstrate lower correlations on adjustment measures was generally supported at two time points, three years apart. However, siblings one year apart at Time 1 were more similar to each other than were siblings two years apart, suggesting that shared environmental influences counteract sibling differentiation processes for these siblings. The overall trend supporting sibling differentiation was found to be unrelated to measures of sibling positivity and negativity.

Sibling comparison of differential parental treatment in adolescence: gender, self-esteem, and emotionality as mediators of the parenting-adjustment association.

This study employs findings from social comparison research to investigate adolescents' comparisons with siblings with regard to parental treatment. The sibling comparison hypothesis was tested on a sample of 516 two-child families by examining whether gender, self-esteem, and emotionality-which have been found in previous research to moderate social comparison-also moderate sibling comparison as reflected by siblings' own evaluations of differential parental treatment. Results supported a moderating effect for self-esteem and emotionality but not gender. The sibling comparison process was further examined by using a structural equation model in which parenting toward each child was associated with the adjustment of that child and of the child's sibling. Evidence of the "sibling barricade" effect-that is, parenting toward one child being linked with opposite results on the child's sibling as on the target child-was found in a limited number of cases and interpreted as reflecting a sibling comparison process. For older siblings, emotionality and self-esteem moderated the sibling barricade effect but in the opposite direction as predicted. Results are discussed in terms of older siblings' increased sensitivity to parenting as well as the report of differential parenting reflecting the child's level of comfort and benign understanding of differential parenting, which buffers the child against environmental vicissitudes evoking sibling comparison processes.