title: Reducing adolescents' growth in substance use and delinquency: randomized trial effects of a parent-training prevention intervention.
abstract: The relationship between growth in adolescent substance use and delinquency was examined in a longitudinal, randomized controlled study of the Preparing for the Drug Free Years Program (PDFY), a universal family-focused prevention intervention. Latent growth curve modeling was used to analyze 5 waves of data collected from 429 rural adolescents. Results showed that adolescents assigned to the PDFY intervention condition had a slower rate of linear increase over time in both substance use and delinquency compared with adolescents assigned to the control condition. Moreover, pretest level of delinquency was a reliable, positive predictor of growth in substance use, whereas pretest level of substance use did not predict growth in delinquency.
authors.affiliation: Social Development Research Group, School of Social Work, University of Washington, Seattle, Washington 98115, USA. wamason@u.washington.edu
authors.forename: W Alex
authors.initials: WA
authors.lastname: Mason
authors.forename: Rick
authors.initials: R
authors.lastname: Kosterman
authors.forename: J David
authors.initials: JD
authors.lastname: Hawkins
authors.forename: Kevin P
authors.initials: KP
authors.lastname: Haggerty
authors.forename: Richard L
authors.initials: RL
authors.lastname: Spoth
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005190:Family; D006801:Humans; D007604:Juvenile Delinquency / Q000517:prevention & control*; D008137:Longitudinal Studies; D016487:Parenting; D011314:Preventive Health Services; D015397:Program Evaluation; D019966:Substance-Related Disorders / Q000517:prevention & control*; D011795:Surveys and Questionnaires