The proposed research will examine long-term effects of an innovative partnership-based intervention delivery model called PROSPER (PROmoting School/community-university Partnerships to Enhance Resilience). Primary effects examined will be reductions in emerging adult substance misuse, antisocial behaviors, and sexual risk behaviors for AIDS and other STIs, along with improvements in healthy adult functioning, among project participants who received evidence-based interventions during middle school. This proposed work extends a randomized control study of the PROSPER model, involving two sequential cohorts of youth and families from an understudied rural population. A total of 28 rural school districts in IA and PA, ranging in size from approximately 1,300 to 5,200 students, were selected and randomly assigned to either the PROSPER partnership condition or to a usual programming control condition. Local teams in the PROSPER partnership sites selected and implemented family-focused and school-based evidence-based interventions (EBIs) for middle school students. The evaluation of intervention outcomes began with approximately 12,000 students (90% of those eligible) in the two cohorts who participated in a 6th grade pretest assessment;follow-up assessments with the students in these cohorts were conducted each spring, through the 12th grade. Following 12th grade, 2,000 randomly selected students from that sample were recruited for continued follow-up assessments. The proposed study will extend those follow-ups to ages 22 and 24.
Aims of the proposed study are to: (1) evaluate long-term substance misuse behaviors, anti-social behaviors and sexual risk behavior outcomes of the PROSPER partnership-supported middle-school EBIs;and (2) evaluate mediators and moderators of long-term EBI effects, informed by an extension of the outcome model specified in the original study. Positive results from the first two grant periods have established PROSPER effectiveness, with evidence of: effective functioning of community teams;strong participation in EBIs;long-term, high quality EBI implementation;sustainability of teams and EBIs;and economic analyses indicating PROSPER efficiency. Most importantly, results show strong EBI outcomes through middle and high school, with positive effects on: young adolescent competencies (e.g., peer refusal skills);parenting effectiveness and family functioning;reduced adolescent conduct problems;and reduced misuse of a wide range of substances through the end of high school. These results suggest a unique opportunity for demonstrating early preventive intervention impacts on healthy adult functioning;the prospect of establishing such impacts would constitute a compelling case for national diffusion of the PROSPER model. Literature reviews failed to reveal another study with a comparably large rural sample that allows assessment of intervention effects on general health, reduced problem behaviors, reduced sexual risk behaviors for AIDS/STIs, and other benefits for participants as they transition into adulthood.

Public Health Relevance

The proposed study examines how an innovative system for delivering evidence-based preventive interventions designed for general populations can have substantial public health impact. It extends earlier outcome research that already has demonstrated: (1) the viability and sustainability of the system;(2) practically-significant relative reduction rates for a number of problem behaviors through adolescence, including prescription drug misuse;(3) stronger effects among higher-risk participants in some cases;and (4) evidence of economic efficiencies. Further potential public health and economic benefits will be evaluated by studying long-term effects of interventions at the emerging adult stage, including effects on sexual risk behaviors for AIDS and other STIs;a highly important aspect of this study is its focus on understudied rural middle school students and their families.

Agency
National Institute of Health (NIH)
Institute
National Institute on Drug Abuse (NIDA)
Type
Research Project (R01)
Project #
5R01DA013709-13
Application #
8723789
Study Section
Special Emphasis Panel (ZDA1-SXC-E (08))
Program Officer
Crump, Aria
Project Start
2000-12-01
Project End
2018-02-28
Budget Start
2014-03-01
Budget End
2015-02-28
Support Year
13
Fiscal Year
2014
Total Cost
$429,032
Indirect Cost
$93,060
Name
Iowa State University
Department
None
Type
Organized Research Units
DUNS #
005309844
City
Ames
State
IA
Country
United States
Zip Code
50011
Chilenski, Sarah M; Welsh, Janet A; Perkins, Daniel F et al. (2016) Universal Prevention Exposure as a Moderator of the Community Context: Findings from the PROSPER Project. Am J Community Psychol 57:8-19
Kreager, Derek A; Molloy, Lauren E; Moody, James et al. (2016) Friends First? The Peer Network Origins of Adolescent Dating. J Res Adolesc 26:257-269
Schlomer, Gabriel L; Cleveland, H Harrington; Feinberg, Mark E et al. (2016) Extending Previous cG×I Findings on 5-HTTLPR's Moderation of Intervention Effects on Adolescent Substance Misuse Initiation. Child Dev :
Vandenbergh, David J; Schlomer, Gabriel L; Cleveland, H Harrington et al. (2016) An Adolescent Substance Prevention Model Blocks the Effect of CHRNA5 Genotype on Smoking During High School. Nicotine Tob Res 18:212-20
Ragan, Daniel T (2016) Peer beliefs and smoking in adolescence: a longitudinal social network analysis. Am J Drug Alcohol Abuse 42:222-30
Kreager, Derek A; Staff, Jeremy; Gauthier, Robin et al. (2016) The Double Standard at Sexual Debut: Gender, Sexual Behavior and Adolescent Peer Acceptance. Sex Roles 75:377-392
Xia, Mengya; Fosco, Gregory M; Feinberg, Mark E (2016) Examining reciprocal influences among family climate, school attachment, and academic self-regulation: Implications for school success. J Fam Psychol 30:442-52
Kreager, Derek A; Ragan, Daniel T; Nguyen, Holly et al. (2016) WHEN ONSET MEETS DESISTANCE: COGNITIVE TRANSFORMATION AND ADOLESCENT MARIJUANA EXPERIMENTATION. J Dev Life Course Criminol 2:135-161
Lippold, Melissa A; Fosco, Gregory M; Ram, Nilam et al. (2016) Knowledge Lability: Within-Person Changes in Parental Knowledge and Their Associations with Adolescent Problem Behavior. Prev Sci 17:274-83
Chilenski, Sarah M; Perkins, Daniel F; Olson, Jonathan et al. (2016) The power of a collaborative relationship between technical assistance providers and community prevention teams: A correlational and longitudinal study. Eval Program Plann 54:19-29

Showing the most recent 10 out of 85 publications