title: Teachers' patterns of implementation of an evidence-based intervention and their impact on student outcomes: results from a nationwide dissemination over 24-months follow-up.
abstract: More information is needed about factors influencing real-life implementation and program impact of interventions effective in controlled study conditions. Ongoing national implementation of an evidence-based HIV prevention program targeting grade 6 students in The Bahamas offers the opportunity to examine patterns of implementation and relate them to student outcomes. Data were collected from 208 grade 6 teachers, 75 grade 7 teachers and 4411 grade 6 students followed over 2 years. Mixed-effects modeling analysis examined the association of teachers' patterns of implementation with student outcomes. High quality program implementation in grade 6 (high implementation dosage and fidelity) was significantly related to student outcomes six and 18 months post-intervention. Quality of implementation of the booster session in grade 7 was also significantly related to student outcomes in grade 7. Quality of delivery of the brief booster session a year after initial implementation is important in maintaining or resetting the student outcome trajectory.
authors.affiliation: Wayne State University School of Medicine, Suite 1261 Scott Hall, 540 E. Canfield, Detroit, MI, 48230, USA. bstanton@med.wayne.edu.
authors.forename: Bonita
authors.initials: B
authors.lastname: Stanton
mesh_terms: D000328:Adult; D001444:Bahamas; D055317:Evidence-Based Practice; D005178:Faculty; D005260:Female; D005500:Follow-Up Studies; D015658:HIV Infections / Q000517:prevention & control*; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008297:Male; D009313:National Health Programs; D015397:Program Evaluation; D040242:Risk Reduction Behavior; D012572:School Health Services / Q000458:organization & administration*; D013334:Students / Q000523:psychology*
keywords: Adolescents; Effects; HIV prevention; Pattern of implementation; Program outcomes; The Bahamas