Table 1.

Descriptive Statistics for Study Variables (N = 209)

Variables	Time 1			Time 2			Mean Difference
	Range	M	SD	Range	M	SD
Outcome variables
Adolescent reported aggression	0 – 15	3.92	4.92	0 – 15	3.46	3.90	− .46
Predictor variables
Perceived parental expectations-peaceful solutions	1 – 10	6.67	2.46	1 – 10	7.50	2.60	.83*
Perceived parental expectations-aggressive solutions	1 – 10	4.45	2.46	1 – 10	4.61	2.46	.16
Perceived parental support/knowledge	1 – 5	4.03	.72	1 – 5	4.09	.87	.06
Perceived parental psychological control	1 – 5	3.04	.87	1 – 5	2.83	.72	− .21*

Note: Because SPSS 19 only generates an overall mean and standard error for multiply imputed data sets, an estimate of the overall standard deviation for each variable was calculated based on the overall standard error.

^*p < .01.