Introduction
There has been an increasing interest in studying the stigma of alcohol use disorders (AUDs) yet scant research has evaluated the conceptualization and measurement of alcohol stigma. This study examined the measurement properties (i.e. factor structure) and validity of the alcohol-adapted Perceived Devaluation-Discrimination scale (PDD), which assesses the construct of perceived alcohol stigma (PAS).
Materials and Methods
Our sample included 34,386 respondents from the Wave 2 assessment in the National Epidemiologic Survey on Alcohol and Related Conditions, a population-representative survey of noninstitutionalized United States adults. Analytic procedures included confirmatory factor analysis and structural equation modeling.
Results
One factor (perceived devaluation-discrimination) and two factor (perceived devaluation, perceived discrimination) confirmatory factor analytic models fit the data well (CFI=0.958, TLI=0.942, RMSEA=0.056; CFI=0.962, TLI=0.946, RMSEA=0.054; respectively) when adjusting for item wording effects with a latent method factor. Despite having a better fit to the data (χ2(1) = 542, p < 0.0001), the two factors were highly correlated (r=0.90), which led us to favor a one-factor model. Structural equation models found that the inverse relationship between PAS and perceived interpersonal social support was strongest for persons with a stigmatized-labeling status. The same was not true in analyses predicting social network involvement.
Conclusions
A one-factor solution of perceived alcohol stigma had superior parsimony. The alcohol-adapted PDD appears to be a psychometrically sound measure and exhibits relationships that are consistent with modified labeling theory.