Table 5.

Paired t Tests Between MBI and TBI Patients

	MBI vs TBI	MBI vs TBI-2	TBI-1 vs TBI-2
	t	P <	t	P <	t	P <
NEUROCOGNITION INDEX ss	6.07	.0000	9.17	.0000	4.62	.0000
MEMORY ss	3.27	.0015	4.90	.0000	4.34	.0000
PSYCHOMOTOR SPEED ss	6.26	.0000	11.18	.0000	6.39	.0000
REACTION TIME ss	4.97	.0000	4.96	.0000	−0.16	.8724
COGNITIVE FLEXIBILITY ss	5.97	.0000	9.03	.0000	3.35	.0012
COMPLEX ATTENTION ss	5.87	.0000	9.29	.0000	2.52	.0134

MBI = mild brain injury; TBI-1 = severe traumatic brain injury; TBI-2 = severe, disabling traumatic brain injury; ss = subjects