Fearful/inhibited temperament moderates the association between parent-reported CU at T1 (age 3) and teacher-reported externalizing problems at T2 (age 6). The slope for low fear/inhibited temperament is significantly different from zero, b = 10.09 (2.40), t = 4.20, p < .01, but not for high fear/inhibited temperament, b = 2.53 (2.04), t = 1.24, ns.