The purpose of this competing continuation proposal is to extend a program of research that began in September, 1991 and has included (a) a controlled pilot phase efficacy study of the Preparing for the Drug Free Years (PDFY) intervention, (b) several consumer-oriented studies of factors influencing participation in family skills interventions like PDFY, and (c) three waves of data collection in a clinical trial study of rural families with sixth graders. Promising results to date underscore the importance of continuing the study as the experimental sample enters the highest risk years for initiation of substance use.
The first aim of this proposal is to collect clinical trial follow-up data, in order to examine long-term outcomes of the PDFY intervention and to evaluate factors influencing long-term project involvement among rural families.
The second aim i s to model processes influencing PDFY outcomes, including models of mechanisms of intervention-related change in parent and child outcomes proximally and distally targeted by PDFY, as well as etiological models derived from the social development framework for the PDFY intervention.
These specific aims will be achieved through second and third year follow-up data collection, along with analyses of these and prior waves of data from the ongoing clinical trial. This trial began with the random assignment of 33 rural schools having a sixth grade and meeting the criteria for the federal school lunch program. Multi-informant, multi-method measurement procedures at pretesting involved 667 families from these schools; posttesting and a one year follow-up assessment have been completed. Pilot phase and preliminary trial phase analyses have shown (a) significant, positive effects of the PDFY intervention on effective parenting and child competencies, (b) support for models of family participation factors, and (c) support for models of intervention-related mechanisms of change in family processes. Comparisons of intervention-control differences on parenting and child substance use outcomes will be conducted at the second and third year data collection points. Planned modeling of etiological and intervention change-related mechanisms will include multisample structural equation and latent growth curve models of interrelationships among targeted parenting and child outcomes.

Agency
National Institute of Health (NIH)
Institute
National Institute on Drug Abuse (NIDA)
Type
Research Project (R01)
Project #
5R01DA007029-07
Application #
2458382
Study Section
Human Development Research Subcommittee (NIDA)
Program Officer
Robertson, Elizabeth
Project Start
1991-09-30
Project End
1999-07-31
Budget Start
1997-08-01
Budget End
1998-07-31
Support Year
7
Fiscal Year
1997
Total Cost
Indirect Cost
Name
Iowa State University
Department
Psychology
Type
Schools of Arts and Sciences
DUNS #
City
Ames
State
IA
Country
United States
Zip Code
50011
Spoth, Richard; Clair, Scott; Trudeau, Linda (2014) Universal family-focused intervention with young adolescents: effects on health-risking sexual behaviors and STDs among young adults. Prev Sci 15 Suppl 1:S47-58
Spoth, Richard; Trudeau, Linda; Shin, Chungyeol et al. (2013) Longitudinal effects of universal preventive intervention on prescription drug misuse: three randomized controlled trials with late adolescents and young adults. Am J Public Health 103:665-72
Trudeau, Linda; Spoth, Richard; Randall, G Kevin et al. (2012) Internalizing symptoms: effects of a preventive intervention on developmental pathways from early adolescence to young adulthood. J Youth Adolesc 41:788-801
Mason, W Alex; Spoth, Richard L (2012) Sequence of alcohol involvement from early onset to young adult alcohol abuse: differential predictors and moderation by family-focused preventive intervention. Addiction 107:2137-48
Spoth, Richard L; Trudeau, Linda S; Guyll, Max et al. (2012) Benefits of universal intervention effects on a youth protective shield 10 years after baseline. J Adolesc Health 50:414-7
Perkins, Daniel F; Feinberg, Mark E; Greenberg, Mark T et al. (2011) Team factors that predict to sustainability indicators for community-based prevention teams. Eval Program Plann 34:283-91
Kosterman, Rick; Mason, W Alex; Haggerty, Kevin P et al. (2011) Positive childhood experiences and positive adult functioning: prosocial continuity and the role of adolescent substance use. J Adolesc Health 49:180-6
Spoth, Richard; Trudeau, Linda; Guyll, Max et al. (2009) Universal intervention effects on substance use among young adults mediated by delayed adolescent substance initiation. J Consult Clin Psychol 77:620-32
Spoth, Richard; Guyll, Max; Shin, Chungyeol (2009) Universal intervention as a protective shield against exposure to substance use: long-term outcomes and public health significance. Am J Public Health 99:2026-33
Spoth, Richard; Shin, Chungyeol; Randall, G Kevin (2008) Increasing School Success Through Partnership-Based Family Competency Training: Experimental Study of Long-Term Outcomes. Sch Psychol Q 23:70-89

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