Table 7.

Mixed Effects Model Predicting Nongame System Use From Previous Week Nongame System Use and Previous Week Game-use

Fixed effects	B	SE	P
Previous Nongame Use	0.34	0.01	<.001
Previous Game Use	0.10	0.02	<.001
Week	−0.07	0.01	<.001
Week Quadratic	0.002	<0.001	<.001
Random Effects
Subject	8.85	1.23	<.001
Week	0.003	<0.001	<.001
Quadratic Week	<0.001	<0.001	<.001