. Author manuscript; available in PMC: 2009 Aug 17.

Published in final edited form as: J Clin Exp Neuropsychol. 2008 Sep 27;31(5):605–610. doi: 10.1080/13803390802375557

TABLE 2.

WRAT-3 Reading raw score stability across participant groups

	N	Time 1 (SD)	Time 2 (SD)	r^*
Control	200	52.3 (3.1)	51.8 (3.4)	.81
MCI	137	49.1 (6.1)	49.1 (6.0)	.92
AD	41	46.7 (5.9)	45.9 (5.7)	.90
Caucasian	315	51.4 (3.9)	51.2 (4.1)	.84
African-American	63	46.1 (7.4)	45.3 (6.9)	.96
Total	378	50.6 (5.1)	50.2 (5.1)	.90

Note. Standard deviations in parentheses. WRAT-3 = Wide Range Achievement Test–Third Edition; Time 1 = WRAT-3 Reading subtest score at the first visit; Time 2 = WRAT-3 Reading subtest score at the second visit; SD = standard deviation; MCI = mild cognitive impairment; AD = Alzheimer’s disease. Diagnosis is based on the first of two consecutive, annual evaluations.

All p < .001.