Revised Alcohol Protective Behavioral Strategies Scale-20 (PBSS-20) Sub-Types: An Analysis of Direct/Controlled Consumption and Indirect/Harm Reduction PBS.

Abstract

Alcohol protective behavioral strategies (PBS) are commonly conceptualized with a three-factor model, as used in the Protective Behavioral Strategies Scale-20 (PBSS-20). However, inconsistencies exist between factors and drinking outcomes. The current study used factor analysis to test a two-factor structure directly via controlled consumption (Direct/CC) and indirectly via harm reduction (Indirect/HR) using the PBSS-20 among a combined sample of n = 4,883 drinkers. Both the two- and three-factor structures evince similar model fit. A two-factor model yielded more concise PBS measurement. Negative associations were observed with consumption (Direct/CC PBS) and problems (Indirect/HR). A condensed, eight-item, two-factor model accounted for less variance in alcohol consumption, however more variance in alcohol-related problems. A more consistent framework for understanding the impact of PBS on alcohol-related outcomes is provided.