Shown in Table 3 is the model predicting to alcohol use and volume through the 3 yearly assessments across the middle school period (ages 11–14 years). In predicting to use versus nonuse (Part I), we found that parental alcohol use and peer alcohol use were associated with a higher likelihood of use at Grade 6 (the intercept). None of the Grade 6 predictors were significantly associated with the slope of use from Grades 6 to 8. Examination of the change score predictors indicated that increases in peer alcohol use from Grades 6 to 8 were associated with higher levels of growth in the likelihood of alcohol use, but change scores in the other predictors were not associated with increased likelihood of use versus nonuse across the period.
