DiClemente, R. J., Wingood, G. M., Rose, E. S., Sales, J. M., Lang, D. L., Caliendo, A. M., et al. (2009). Efficacy of sexually transmitted Disease/Human immunodeficiency virus sexual risk-reduction intervention for african american adolescent females seeking sexual health services: A randomized controlled trial. Archives of Pediatrics & Adolescent Medicine, 163(12), 1112-1121.

Sales, J. M., Lang, D. L., DiClemente, R. J., Latham, T. P., Wingood, G. M., Hardin, J. W., & Rose, E. S. (2012). The mediating role of partner communication frequency on condom use among African American adolescent females participating in an HIV prevention intervention. Health Psychology, 31(1), 63-69.

Program Evaluated HORIZONS
Evidence of Effectiveness Yes
Study Rating and Explanation HighRandom assignment study that met all criteria for a high rating; findings show a positive, statistically significant impact for at least one behavioral outcome
Review Date April 2010

Program Information

Program Type

Program Type is Sexuality education Sexuality education
Programs for special populations
Youth development

Program Length

Program Length is Fewer than 10 sessions Fewer than 10 sessions
10 to 20 sessions
More than 20 sessions

Evaluation Setting

After school/community-based
Evaluation Setting is Health clinic Health clinic
Elementary school
Middle school
High school
Multiple settings
Specialized setting

Study Sample

Average Age Group

13 or younger
14 to 17
Average Age Group is 18 to 19 18 or 19

Majority Racial/Ethnic Group

Majority Racial/Ethnic Group is African American African American


Both genders
Gender is Female only Female only
Male only

Research Design

Assignment Method Randomized controlled trial
Sample Size 715
Number of Follow-Ups 2
Length of Last Follow-Up 6

Study Findings

Sexual Initiation/Abstinence Not measured
Recent Sexual Activity Not measured
Number of Sexual Partners Not measured
Frequency of Sexual Activity Not measured
Contraceptive Use and/or Consistency +
Sexually Transmitted Infections (STIs) or HIV Mix of positive, null, and/or adverse impacts
Pregnancy or Birth Not measured