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Development and Psychometric Evaluation of the PrEP Sexual Expectancies (PSEXS) Scale
Alex Dubov1, Adedotun Ogunbajo2, Frederick L Altice3
1Loma Linda University School of Behavioral Health, 11065 Campus Street, Loma Linda, CA, 92350, USA. adubov@llu.edu.
AIDS and Behavior
|November 13, 2020
Summary
Researchers developed the PrEP Sexual Expectancies Scale (PSEXS) to understand how PrEP use affects sexual experiences and risk-taking among men who have sex with men (MSM). The PSEXS scale demonstrates good psychometric properties and reliability in diverse populations.
Area of Science:
- Psychology
- Public Health
- Sociology
Background:
- Pre-exposure prophylaxis (PrEP) is a key HIV prevention strategy.
- Understanding user expectations is crucial for PrEP adherence and effectiveness.
- Previous research indicates sexual expectations influence health behavior decisions.
Purpose of the Study:
- To develop and psychometrically evaluate the PrEP Sexual Expectancies Scale (PSEXS).
- To assess PrEP-related sexual expectancies among men who have sex with men (MSM).
- To explore perceived reinforcements associated with PrEP use.
Main Methods:
- Developed the PSEXS based on Expectancy Theory.
- Administered the scale to 1155 MSM in Ukraine and 408 MSM in the U.S.
- Conducted confirmatory factor analyses to validate the scale structure.
Main Results:
- A two-factor model (increased sexual risk-taking, enhanced sexual experience) fit the data well.
- The PSEXS demonstrated high internal reliability in both samples (Ukraine α=0.88, U.S. α=0.83).
- The scale's factor structure explained significant variance in both populations.
Conclusions:
- The PSEXS is a reliable and valid measure for assessing sexual expectancies related to PrEP use.
- Findings support the role of sexual expectations in PrEP uptake and adherence among MSM.
- The scale can inform targeted interventions and improve understanding of PrEP's impact on sexual lives.
Keywords:
Factor analysisMen who have sex with menPre-exposure prophylaxisRisk compensationScaleSex expectanciesMore Related Videos
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