Examining the Effects of Theory-based Education on Individuals' Sexual Behavior.

Transtheoretical theory-based education will be provided to individuals with substance use disorders face-to-face in 8 modes and each lesson will last 45 minutes. Weekly education stages of transtheoretical theory-based education: Week 1; Stage 1 (not thinking); Weeks 2 and 3, Stage 2 (Thinking/Intention); Weeks 4 and 5, Stage 3 (Preparation); Weeks 6 and 7, Stage 4 (taking action); Week 8, Stage 5 (Maintenance/Continuing).

Information Form, Sexual Risk Taking Scale, AIDS Knowledge Scale and AIDS Prevention Self-Efficacy Scale