%0 Journal Article %J Prev Sci %D 2013 %T The application of meta-analysis within a matched-pair randomized control trial: An illustration testing the effects of Communities That Care on delinquent behavior. %A Monahan, Kathryn C %A Hawkins, J D %A Abbott, Robert D %K Adolescent %K Age of Onset %K Attention Deficit and Disruptive Behavior Disorders %K Child %K Cohort Studies %K Consumer Participation %K Cross-Sectional Studies %K Female %K Humans %K Juvenile Delinquency %K Longitudinal Studies %K Male %K Matched-Pair Analysis %K Meta-Analysis as Topic %K Risk Factors %K Socioeconomic Factors %K Substance-Related Disorders %X

Use of meta-analytic strategies to test intervention effects is an important complement to traditional design-based analyses of intervention effects in randomized control trials. In the present paper, we suggest that meta-analyses within the context of matched-pair designs can provide useful insight into intervention effects. We illustrate the advantages to this analytic strategy by examining the effectiveness of the Communities That Care (CTC) prevention system on 8th-grade delinquent behavior in a randomized matched-pair trial. We estimate the intervention effect within each of the matched-pair communities, aggregate the effect sizes across matched pairs to derive an overall intervention effect, and test for heterogeneity in the effect of CTC on delinquency across matched pairs of communities. The meta-analysis finds that CTC reduces delinquent behavior and that the effect of CTC on delinquent behavior varies significantly across communities. The use of meta-analysis in randomized matched-pair studies can provide a useful accompaniment to other analytic approaches because it opens the possibility of identifying factors associated with differential effects across units or matched pairs in the context of a randomized control trial.

%B Prev Sci %V 14 %P 1-12 %8 2013 Feb %G eng %N 1 %R 10.1007/s11121-012-0298-x %0 Journal Article %J Psychol Addict Behav %D 2011 %T Changes in self-control problems and attention problems during middle school predict alcohol, tobacco, and marijuana use during high school. %A King, Kevin M %A Fleming, Charles B %A Monahan, Kathryn C %A Catalano, Richard F %K Adolescent %K Adolescent Behavior %K Alcohol Drinking %K Attention %K Child %K Disruptive, Impulse Control, and Conduct Disorders %K Female %K Humans %K Internal-External Control %K Longitudinal Studies %K Male %K Models, Psychological %K Self Concept %K Smoking %X

Although deficits in impulse control have been linked to adolescent use of alcohol and illicit drugs, less attention has been given to variability in change in impulse control across adolescence and whether this variability may be a signal of risk for early substance use. The goals of the current study were to examine growth in two aspects of impulse control, self-control problems and attention problems, across middle adolescence, and to test the prospective effects of level and change in these variables on levels and change over time in substance use. Data are from a community sample of 955 adolescents interviewed (along with their parents and teachers) annually from 6th to 11th grade. Results indicated that greater self-control problems and attentional problems in the 6th grade and increases in these problems over time were associated with higher levels of substance use at 11th grade. Our results suggest that modeling change over time enhances the understanding of how impulse control influences the development of substance use.

%B Psychol Addict Behav %V 25 %P 69-79 %8 2011 Mar %G eng %N 1 %R 10.1037/a0021958