[Alcohol outcome expectancies questionnaire (CERCA): psychometric properties in inpatients for addictions in Mexico].

Alcohol expectancies are the anticipations that a person makes to the effects that this substance will cause. This construct has proven to be useful in explaining alcohol consumption; however they have been scarcely measured in clinical population. The aim of this study was to develop and evaluate the psychometric properties of a test measuring these expectations in Mexican people with severe alcohol consumption under inpatient treatment.