Using theory to understand how interventions work: Project RESPECT, condom use, and the Integrative Model

Area of Science:

• Public Health
• Behavioral Science
• Epidemiology

Background:

• The Integrative Model of Behavioral Prediction (IM) offers a framework for designing effective HIV/STD prevention programs.
• However, specific IM components linked to successful behavioral outcomes in HIV prevention are not well-defined.

Purpose of the Study:

• To analyze how components of the IM, assessed before and after an intervention, correlate with condom use three months later.
• To identify which IM elements are most influential in predicting sustained condom use among individuals at risk for HIV/STDs.

Main Methods:

• Structural equation modeling was employed to examine the relationships between IM components and condom use.
• Data were collected from participants in Project RESPECT, a multisite randomized controlled trial focused on HIV/STD risk reduction.

Main Results:

• The Integrative Model of Behavioral Prediction (IM) overall successfully predicted condom use at the three-month follow-up.
• The predictive power of specific IM components varied significantly based on participant gender, the type of sexual partner, and the specific intervention received.

Conclusions:

• The IM is a valuable tool for predicting condom use in HIV/STD prevention efforts.
• Tailoring interventions based on gender, partner type, and specific IM components may enhance the effectiveness of HIV/STD risk reduction strategies.