Educational success and plans. Grades in high school were coded from D or lower=1 to A=9. College plans were coded as plan to graduate from a 4-year college or more=1, and plan on less than 4-year college graduation=0. The number of days students reported cutting school (ie, missing without an excuse) in the past four weeks was coded from none=1 to 11 or more=7. Social life and substance-related attitudes. Evenings out without parents in a typical week were coded from less than one=1 to 6 or 7=6. Students’ beliefs about how many of their friends get drunk at least once a week were coded as none=1 to all=5. Alcohol attitudes were measured by disapproval of binge drinking (ie, 5+ drinks) on the weekend (don’t disapprove=1 to strongly disapprove=3) and perceived risk of binge drinking on the weekend (no risk=1 to great risk=4). Finally, other substance use predictors were cigarette use in the past 30 days (none=1 to 2+ packs per day=7) and marijuana use in the past 30 days (none=1 to 40+ times=7).
