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When to Intervene: Elementary School, Middle School or Both? Effects of keepin’ It REAL on Substance Use Trajectories of Mexican Heritage Youth

Abstract  

This article presents the findings of a study exploring two questions: What age is most efficacious to expose Mexican heritage
youth to drug abuse prevention interventions, and what dosage of the prevention intervention is needed? These issues are relevant
to Mexican heritage youth—many from immigrant families—in particular ways due to the acculturation process and other contextual
factors. The study utilized growth curve modeling to investigate the trajectory of recent substance use (alcohol, cigarettes,
marijuana, inhalants) among Mexican heritage students (N = 1,670) participating in the keepin’ it REAL drug prevention program at different developmental periods: the elementary school (5th grade), middle school (7th grade),
or both. The findings provide no evidence that intervening only in elementary school was effective in altering substance use
trajectories from 5th to 8th grade, either for licit nor illicit substances. Implementing keepin’ it REAL in middle school alone altered the trajectories of use of all four substances for Mexican heritage youth. A double dose of
prevention, in elementary and middle school proved to be equally as effective as intervening in 7th grade only, and only for
marijuana and inhalants. The decrease in use of marijuana and inhalants among students in the 7th-grade-only or the 5th- and
7th-grade interventions occurred just after students received the curriculum intervention in 7th grade. These results are
interpreted from an ecodevelopmental and culturally specific perspective and recommendations for prevention and future research
are discussed.

  • Content Type Journal Article
  • DOI 10.1007/s11121-010-0189-y
  • Authors
    • Flavio F. Marsiglia, School of Social Work, Arizona State University, Phoenix, AZ USA
    • Stephen Kulis, Sociology Program, School of Social and Family Dynamics, Arizona State University, Phoenix, AZ USA
    • Scott T. Yabiku, Sociology Program, School of Social and Family Dynamics, Arizona State University, Phoenix, AZ USA
    • Tanya A. Nieri, Sociology Department, University of California, Riverside, CA USA
    • Elizabeth Coleman, School of Social Work, Arizona State University, Phoenix, AZ USA
    • Journal Prevention Science
    • Online ISSN 1573-6695
    • Print ISSN 1389-4986
Posted in: Journal Article Abstracts on 12/04/2010 | Link to this post on IFP |
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