Cognitive ability and drinking behavior in a national sample of young adults.

The role of verbal intelligence (VI) as an antecedent and moderator of alcohol-related problems was investigated for a national sample of young adults. A measure of VI was used to predict alcohol related behavior 5 years later. Results indicated that lower VI was associated with lower risk for drinking per se. Lower VI was also associated with higher risk for alcohol-related problems among those who drink. These findings were robust across gender, age, and to a large extent across different areas of alcohol related problems. Cognitive-behavioral functions associated with intelligence, such as social judgement, social inference, and social skills, are proposed as possible moderators of the relationship between intelligence and alcohol-related problems.