Personal and social drinking motives, family drinking history, and problems associated with drinking in two university samples.

Two drinking motives scales, Negative Personal (NP) motives and Positive Social (PS) motives, derived from Mulford and Miller's Definitions of Alcohol Scales, and a Negative Family Models (NFM) scales designed to reflect family modeling of drinking-related problems were evaluated for internal consistency and association with college students' scores on a drinking-related Social Complications (SOCCOMP) scale. In both initial (n = 553) and cross-validation (n = 293) samples, all four scales demonstrated high internal consistency. Multiple regressions of NP, PS, and NFM scales, together with measures of quantity and frequency of drinking on SOCCOMP for both samples, yielded highly significant multiple R's, confirming the additive association of these measures with problem drinking outcomes. An unanticipated finding of positive associations between PS drinking motive and SOCCOMP is reported.