The antisocial behavior scale was adapted from Frick and Hare (2001), and each parent reported how well a series of seventeen statements indicative of antisocial behavior (e.g., acting without thinking of consequences, irritability, engagement in risky activities) describe himself or herself on a three-point scale anchored 0 (not at all true) to 2 (definitely true). Reliabilities (alpha) were 0.55 and .71 for mothers and fathers, respectively. Maternal scores ranged from 0–15 (M = 4.42), and paternal scores ranged from 0–19 (M = 4.81). Forty-one percent of the sample only had mother data, 5% only had father data, and <1% were missing data on both parents. When both mother and father data were available (52% of sample), the maximum score was used in the analysis. For 53% of these participants, the maximum antisocial behavior score was from the father, for 37% the maximum antisocial behavior score was from the mother, and for 10% the mother and the father had the same score. Mother and father scores were positively related, although the effect was not significant, τ = .05, p = 0.35.
