Table 4.

Comparisons Between Initial Invalid and Valid Baseline Data

Variable	Mean ± SD		t	Significance	d
	Invalid	Valid
Verbal Memory	65.1 ± 13.5	84.5 ± 9.7	22.0	<.001	1.65
Visual Memory	59.3 ± 15.7	73.4 ± 13.0	12.1	<.001	−0.98
Visual Motor Speed	29.4 ± 6.4	36.3 ± 7.3	10.8	<.001	−1.00
Reaction Time mean	0.67 ± 0.10	0.61 ± 0.09	7.5	<.001	0.63
Symptom Scale mean	6.1 ± 10.3	4.3 ± 7.9	2.5	.011	0.20