Antisocial behavior was assessed in the fall surveys via a six-item scale in which individuals retrospectively reported on behavior during the high school period. The score was created as a standardized sum of six responses (I skipped school, I ran away from home overnight, I stole things from a store or from someone I knew, I used a weapon in a fight, I robbed or mugged someone, I started physical fights) with four response options (3=6 or more times, 2=3–5 times, 1=1–2 times, 0=never). Missing data was prorated. Individuals not answering 50% of questions were assigned as missing.
