Mechanisms of personality-targeted intervention effects on adolescent alcohol misuse, internalizing and externalizing symptoms.

摘要: OBJECTIVE This study aims to explore the mechanisms of personality-targeted intervention effects on problematic drinking, internalizing and externalizing symptoms. METHOD As part a cluster-randomized trial, 1,210 high-risk students (mean age 13.7 years) in 19 London high schools (42.6% White, 54% male) were identified using Substance Use Risk Profile Scale. Intervention school participants invited participate personality-matched interventions by trained staff. MacKinnon's products coefficients method was used compare 3 complementary mechanism hypotheses, namely, whether early changes (a) alcohol use, (b) symptoms, or (c) personality during 6 months postintervention accounted for over 2 years. RESULTS Early drinking behaviors partially longer term onset binge (95% confidence interval [CI] [-.349, -.062]) problems CI [-.206, -.016]) anxiety symptoms conduct mediated reductions depressive [-.013, -.001]; 95% [-.047, -.001]), also sensitivity [-.003, 0]). CONCLUSIONS 2-year largely behaviors, not mental health risk factors. improvements mood problems.