Despite substantial research on adolescent tobacco use, we are far
from having reliable, effective methods of preventing youth tobacco use onset,
and prevalence of adolescent tobacco use in the U.S. remains high. The proposed
research would test the mobilization of the powerfu1 influences of parents and
peers by experimentally evaluating the efficacy of two strategies for
preventing the onset of tobacco use in early adolescence. We propose to expand
and strengthen the Family Communications About Tobacco and Youth Anti-tobacco
Activities; interventions that were shown to have promising results in the
previous project, to augment those interventions with videotapes and Internet
technology, and to evaluate their combined effects when delivered to sixth
Over the first two years of the study, a total of 40 Oregon middle schools will
be recruited, assessed on eight-grade prevalence of tobacco use, and randomly
assigned to receive or not to receive the Family Communications and Youth
Anti-tobacco interventions. Twenty schools will be recruited in the first year
of the study, and 20 in the second year. The intervention targets sixth grade
students; prevalence of tobacco use, other substance use, and antisocial
behavior will be assessed among target students at the outset of sixth grade,
and followed up at the end of those students' seventh and eighth grades. The
study is also designed to assess exposure to intervention elements and the
impact of the intervention on parenting practices and peer influence process
the effect of the intervention on these variables will be measured via
telephone interviews to a random sample of 50 child-parent pairs from each
school, and relationships of parent and peer influences to subsequent tobacco
use will be modeled using Latent Growth Modeling.
Study design is a group-randomized design in which students are nested within
schools, and intervention effects will be examined in two ways: using data from
all students in grade 6 during intervention who stay in the school at
subsequent assessments; and using data from students who transfer into the
school in later grades.
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