Table 7.

Regression Coefficients for Changes in Child Test Scores Associated with Changes in Weekly Media Use between 1997 and 2003

Variable	Letterword	Passage comprehension	Applied problems	Internalizing Problemsa	Externalizing Problemsa
NON-HISPANIC WHITE BOYSb
N	237	228	238	278	278
Change in Weekly Hours in:
Computer play	0.09	−0.13	−0.24	−0.01	−0.01
Computer study	−0.23	−0.03	−0.33	0.00	−0.03
Computer communications	0.15	−0.27 *	−0.28 *	−0.01	−0.02
Video games	0.00	−0.03	−0.07	0.00	0.01 *
Television	0.13 *	0.01	0.03	0.00	0.00
BLACK BOYSb
N	185	182	185	195	195
Change in Weekly Hours in:
Computer play	0.98	0.10	−0.02	−0.03	−0.07
Computer study	0.63	3.71 **	0.17	−0.36	−0.05
Computer communications	0.14	0.95 *	0.53	0.01	−0.02
Video games	−0.09	−0.12	−0.08	0.00	0.01 *
Television	0.10	−0.03	−0.05	0.01	−0.01
NON-HISPANIC WHITE GIRLSb
N	266	261	265	300	300
Change in Weekly Hours in:
Computer play	0.55	0.99 *	0.98 **	−0.02 *	−0.01
Computer study	−0.71	0.25	1.18 *	0.05 *	0.01
Computer communications	0.08	0.04	−0.02	−0.01	0.00
Video games	−0.69 *	0.20	0.14	0.02	−0.02
Television	−0.01	−0.02	−0.06	−0.01	0.00
BLACK GIRLSb
N	179	175	177	188	188
Change in Weekly Hours in:
Computer play	−0.19	−0.18	−0.28	0.05	0.02
Computer study	0.44	−0.47	−0.48	0.01	0.00
Computer communications	0.38	−0.22	−0.10	0.02	0.00
Video games	0.50	−1.22 **	0.54 *	−0.03	−0.01
Television	−0.04	−0.20 **	−0.01	0.00	−0.01 *

^aStandardized factor scores with mean of 0 and standard deviation of 1 used here

^bControls for change in age of child, number of children, household income, and number of parents.

Note: Data are weighted. Robust standard errors computed using Stata.

^***p< .001,

^**p< .01,

^*p< .05,

⁺p<.10