Psychometric Validation of the East Africa Alcohol Expectancy Scale (AFEXS) for Youth Living with HIV in Southwestern Uganda

Reliable and valid assessment tools are crucial for measuring alcohol use expectancies (AUE) among youth living with HIV (YLHIV). In this paper, we assess the psychometric properties of the original 17-item East Africa Alcohol Expectancy Scale (AFEXS) among Ugandan YLHIV—a scale developed and validated by Woolf-King et al. for use among Uganda adults living with HIV. Specifically, we applied the measure to a sample of 100 Ugandan YLHIV enrolled in a substance use intervention. To analyze the psychometric properties, we conducted exploratory factor analysis (EFA), confirmatory factor analysis (CFA), and convergent validity analyses. The resulting 15-item youth AFEXS scale differed from the 11-item adult version. The 15-item Youth AFEXS demonstrated high internal consistency (α = 0.85), aligning with theoretical expectations of a three-factor structure related to sexual expectancies (7 items; α = 0.89), negative expectancies (4 items; α = 0.72), and release of inhibition expectancies (4 items; α = 0.77). The global scale and sub-scales demonstrated satisfactory convergent validity through positive correlations measures of frequency of alcohol consumption in the past 12 months: global AFEXS (r = 0.617; p = 0.000), sexual expectancies (r = 0.583; p = 0.000), negative expectancies (r = 0.618; p = 0.000), and release expectancies (r = 0.596; p = 0.000). The study confirms the youth AFEXS as a reliable and valid tool for assessing AUE among Ugandan YLHIV.