Table 5.

Regression equations for predicting Time 2 scores from the current cognitively intact combined development sample

	F (df)	R2	SEesta	Cb	Bc	Other variables d
Hopkins Verbal Learning Test – Revised
∃Total Recall	151.46 (1, 198)	.43	3.34	13.13	0.65
∃Delayed Recall	162.54 (1, 198)	.45	1.17	5.90	0.49
Brief Visuospatial Memory Test – Revised
∃Total Recall	49.33 (5, 194)	.56	3.78	11.01	0.52	− (age*0.13) + (education*0.17) + (sex*0.41) + (WRAT*0.13)
∃Delayed Recall	46.10 (5, 194)	.54	1.35	2.78	0.49	− (age*0.04) + (education*0.07) + (sex*0.23) + (WRAT*0.04)
Symbol Digit Modality Test	168.19 (3, 195)	.72	4.92	19.83	0.83	− (age*0.21) + (education*0.37)
Trail Making Test
Part A	64.13 (1, 198)	.25	14.23	12.21	0.61
Part B	45.50 (6, 193)	.59	22.69	−9.94	0.47	+ (age*1.41) - (education*0.93) − (sex*1.94) − (WRAT*0.22) − (Interval*2.12)

Note: All F-tests are significant at p < .001. df = degrees of freedom,

^a= standard error of the estimate,

^b= Constant,

^c= Unstandardized beta weight for the same Time 1 Index,

^d= Unstandardized beta weights for other variables in the equation, WRAT = Wide Range Achievement Test – Reading subtest. Age and education are in years; sex is coded male = 0, female = 1; WRAT is in Standard Score units; and Interval is in days. To calculate the predicted Time 2 score, use the following formula: (Constant value for the Index) + Unstandardized beta weight for the Index at Time 1 * score for Index at Time 1) + (Other variables in equation as noted in the Table).