Table 4.

Rates of changes (%) using reliable change indices (RCI) vs regression-based model (RBM)^a

ImPACT	RCIb						RBM
	80% CIc			95% CIc			80% CIc			95% CIc
	Impr	Decl	Tot	Impr	Decl	Tot	Impr	Decl	Tot	Impr	Decl	Tot
Verbal Memory	14	17	31	4	5	9	10	10	21	4	0	4
Visual Memory	22	7	29	6	1	8	10	9	19	3	2	5
Visual Motor Speed	31	3	34	10	1	12	9	9	17	1	1	2
Reaction Time	6	15	21	3	4	8	5	8	12	0	4	4
Total Symptom	10	12	23	5	10	15	5	9	14	0	5	6

Notes: ^aImpr=improved; Decl=declined; Tot=total.

^bRCI: Chelune et al. (1993).

^cCI=confidence interval; numbers represent percent of participants scoring beyond cut-off values (80% CI = 1.28 and 95% CI = 1.96).