. Author manuscript; available in PMC: 2014 Sep 1.

Published in final edited form as: J Dev Behav Pediatr. 2013 Sep;34(7):469–477. doi: 10.1097/DBP.0b013e3182a39890

Table 1.

Descriptive Statistics for Various Impairments and Bivariate Correlations with Predictor Variables

	Learning and Applying Knowledge						Interpersonal Interactions				Major Life Areas			Mean	Standard Deviation	N
	Reading, P	Reading, T	Writing, P	Writing, T	Math, P	Math, T	Parent, P	Sibling, P	Peer, P	Peer, T	Organized Activities, P	Overall School, P	Class Disruption, T	Mean	Standard Deviation	N

Age	−.01	−.15^b	−.04^a	−.20^b	.12^b	−.05^a	.12^b	.07^b	−.10^b	−.27^b	−.16^b	.07^b	−.37^b	9.38	3.07	5456
Gender (1=F, 2=M)	.00	−.01	.12^b	.11^b	−.14^b	−.14^b	−.04^a	−.02	.04^a	.12^b	.04^a	.05^b	.21^b	-	-	-
LD (0= N, 1 = Y)	.20^b	.20^b	.17^b	.18^b	.18^b	.19^b	.01	−.01	−.01	.00	.01	.14^b	−.06	-	-	-
Medicated (0=N, 1=Y)	−.05^b	.07^b	−.02	−.04^a	−.03^a	−.03^a	.07^b	.06^b	.07^b	.03^a	.03^a	−.05^b	−.05^b	-	-	-
IA, P	.21^b	.08^b	.25^b	.10^b	.25^b	.12^b	.22^b	.19^b	.18^b	.03^a	.20^b	.33^b	.04^a	2.07	0.60	5455
IA, T	.14^b	.31^b	.20^b	.46^b	.12^b	.32^b	−.07^b	−.08^b	.05^a	.37^b	.09^b	.26^b	.47^b	1.81	0.71	5453
HI, P	.04^a	.03	.05^b	.03^a	−.04^a	−.03^a	.25^b	.26^b	.33^b	.27^b	.30^b	.09^b	.44^b	1.53	0.83	5456
HI, T	−.04^a	.06^b	−.02	.14^b	−.14^b	−.02	.03^a	.02	.18^b	.44^b	.14^b	.04^a	.80^b	1.21	0.88	5453
Oppositional, P	.04^a	−.02	.03	−.03^a	.02	−.04^a	.54^b	.53^b	.43^b	.18^b	.32^b	.13^b	.20^b	1.34	0.81	5454
Oppositional, T	−.04^a	−.02	−.03^a	.05^b	−.07^b	−.03^a	.15^b	.15^b	.31^b	.53^b	.23^b	.10^b	.50^b	0.51	0.70	5451
Internalizing, P	.05^b	−.02	.06^b	−.05^a	.10^b	.01	.30^b	.26^b	.27^b	−.01	.24^b	.08^b	−.20^b	0.91	0.66	5454
Internalizing, T	.09^b	.12^b	.07^b	.17^b	.08^b	.14^b	.03^a	.02	.09^b	.10^b	.10^b	.08^b	.03^a	0.52	0.50	5452

Mean	3.33	3.42	3.59	3.80	3.35	3.43	2.46	2.75	2.88	3.27	3.50	3.52	3.50	-	-	-
Standard Deviation	1.23	1.14	1.04	0.97	1.14	1.06	1.18	1.16	1.04	0.92	1.23	1.07	1.23	-	-	-
N	5284	5241	5347	5246	5277	5065	5432	4915	5430	5419	5126	5383	5256	-	-	-

p<.05;

p<.000.