Table 2. Descriptive Statistics of Key Variables.

Variable	Overall	Girls	Boys	t scorea
Mother hostility, age 3				-1.56
Mean (SD)	3.05 (2.81)	2.80 (2.85)	3.22 (2.78)
N	209	87	122
Mother hostility, age 4				-1.96
Mean (SD)	3.35 (3.21)	2.81 (3.06)	3.73 (3.27)
N	190	79	111
Mother hostility, age 5				-.63
Mean (SD)	3.20 (2.91)	3.04 (2.75)	3.31 (3.03)
N	189	79	110
Father hostility, age 3				.42
Mean (SD)	2.70 (2.91)	2.80 (3.22)	2.62 (2.67)
N	201	84	117
Father hostility, age 4				.67
Mean (SD)	2.37 (2.32)	2.51 (2.47)	2.28 (2.22)
N	182	74	108
Father hostility, age 5				.41
Mean (SD)	2.48 (2.79)	2.59 (2.89)	2.41 (2.74)
N	177	70	107
Mother-child relationship, age 3				.01
Mean (SD)	1.76 (.76)	1.76 (.73)	1.76 (.78)
N	205	87	118
Mother-child relationship, age 4				.79
Mean (SD)	1.56 (.55)	1.60 (.57)	1.53 (.54)
N	194	80	114
Mother-child relationship, age 5				-.03
Mean (SD)	1.56 (.53)	1.56 (.50)	1.56 (.56)
N	190	80	110
Father-child relationship, age 3				.85
Mean (SD)	1.80 (.81)	1.86 (.81)	1.76 (.81)
N	202	87	115
Father-child relationship, age 4				-.45
Mean (SD)	1.55 (.57)	1.53 (.57)	1.57 (.57)
N	185	77	108
Father-child relationship, age 5				-1.12
Mean (SD)	1.58 (.64)	1.51 (.59)	1.62 (.68)
N	155	72	104

Note. Values in bold are significantly different between groups at p<.05.

^at score refers to comparison between girls and boys.