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. Author manuscript; available in PMC: 2015 Jul 31.

Published in final edited form as: J Youth Adolesc. 2008 Sep 9;38(3):417–428. doi: 10.1007/s10964-008-9335-2

Table 2. Regression analyses predicting violence and general aggression from cumulative risk composites.

Step/Predictors	Violent behavior			General aggressive behavior

	b	SE (b)	β	b	SE (b)	β
Step 1: Control variables
Sex (0 = female, 1 = male)	.024^***	.004	.181	3.425^***	.611	.189
Age in years	−.013^***	.002	−.278	-2.202^***	.228	−.299
R²	.115^***			.130^***
Step 2a: add to Step 1
“Media violence risk” (MVR)	.019^***	.003	.195	2.507^***	.444	.183
R² change from Step 1	.038^***			.034^***
Step 2b: add to Step 1
“Other Risks” (OR)	.020^***	.001	.472	2.852^***	.173	.482
R² change from Step 1	.217^***			.227^***
Step 2c: add to Step 1
“Total risk” (TR = OR + MVR)	.018^***	.001	.481	2.472^***	.148	.485
R² change from Step 1	.227^***			.230^***
Step 2d: add to Step 1
“Other Risk” (OR)	.019^***	.001	.450	2.739^***	.175	.452
“Media Violence Risk” (MVR)	.012^***	.003	.119	1.418^***	.397	.104
R² change from Step 1	.231^***			.238^***

^*

p < .05

^**

p <.01

^***

p < .001