Teasing Apart a Multiple Component Approach to Adolescent Alcohol Prevention: What Worked in Project Northland?

Teasing Apart a Multiple Component Approach to Adolescent Alcohol Prevention: What Worked in... This paper presents the results of a post hoc component analysis designed to tease apart the effects of different intervention strategies used in Project Northland, a group-randomized, community-wide, multi-level intervention trial originally conducted in the 1990's to prevent and reduce alcohol use among a cohort of mainly White students in rural Minnesota. This study focuses on Phase I, when students were in 6th–8th grade. The intervention during this phase included five components: classroom curricula, peer leadership, youth-driven/led extra-curricular activities, parent involvement programs, and community activism. Student exposure to/participation in these components was followed over time using reliable process measures. These measures were used as time-varying covariates in growth curve analyses to estimate the effects of the intervention components over time. Multi-item scales from annually-administered student surveys were used to measure relevant outcome variables, like alcohol use. The impact of the components appears to have been differential. The strongest effects were documented for the planners of extra-curricular activities and parent program components. The classroom curricula proved moderately effective, but no effects were associated with differential levels of community activism. The interactions tested here did not provide support for synergistic effects between selected intervention components. Care must be taken when selecting and combining intervention strategies meant to reduce adolescent alcohol use. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Prevention Science Springer Journals

Teasing Apart a Multiple Component Approach to Adolescent Alcohol Prevention: What Worked in Project Northland?

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Publisher
Springer US
Copyright
Copyright © 2006 by Society for Prevention Research
Subject
Medicine & Public Health; Public Health; Health Psychology; Child and School Psychology
ISSN
1389-4986
eISSN
1573-6695
D.O.I.
10.1007/s11121-006-0040-7
Publisher site
See Article on Publisher Site

Abstract

This paper presents the results of a post hoc component analysis designed to tease apart the effects of different intervention strategies used in Project Northland, a group-randomized, community-wide, multi-level intervention trial originally conducted in the 1990's to prevent and reduce alcohol use among a cohort of mainly White students in rural Minnesota. This study focuses on Phase I, when students were in 6th–8th grade. The intervention during this phase included five components: classroom curricula, peer leadership, youth-driven/led extra-curricular activities, parent involvement programs, and community activism. Student exposure to/participation in these components was followed over time using reliable process measures. These measures were used as time-varying covariates in growth curve analyses to estimate the effects of the intervention components over time. Multi-item scales from annually-administered student surveys were used to measure relevant outcome variables, like alcohol use. The impact of the components appears to have been differential. The strongest effects were documented for the planners of extra-curricular activities and parent program components. The classroom curricula proved moderately effective, but no effects were associated with differential levels of community activism. The interactions tested here did not provide support for synergistic effects between selected intervention components. Care must be taken when selecting and combining intervention strategies meant to reduce adolescent alcohol use.

Journal

Prevention ScienceSpringer Journals

Published: Jun 3, 2006

References

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