13 Frick et al. (1993) 將品性問題(conduct problems)分成兩個向度,分別為:
(A)外顯—內隱向度(overt-covert dimension) 和破壞—非破壞向度(destructive-nondestructive dimension)
(B)外顯—內隱向度(overt-covert dimension) 和過度反應—含蓄反應向度(overactive-underactive dimension)
(C)衝動—非衝動向度(impulsive-non-impulsive dimension)和過度反應—含蓄反應向度(overactive-underactive
dimension)
(D)衝動—非衝動向度(impulsive-non-impulsive dimension)和破壞—非破壞向度(destructive-nondestructive
dimension)