Table 2.

Mean, SD, range, and comparison of impaired and intact groups on neuropsychological measures.

		Functional Independence Scale (FIS)
		Impaired (n=58)		Intact (n=26)
		Mean (SD)	Range	Mean (SD)	Range	t-test p-value
Stroop Interference Test
	Color Naming	38.2 (13.7)	10–70	66.9 (15.7)	34–95	< .001
	Word Reading	51.2 (18.9)	3–94	87.5 (21.8)	48–138	< .001
	Interference	22.0 (8.9)	0–45	39.0 (10.8)	20–61	< .001
DRS	Attention	34.2 (2.0)	27–37	36.4 (.81)	35–37	< .001
	Initiation	26.0 (7.0)	7–37	35.7 (2.1)	31–37	< .001
	Constructions	4.5 (1.5)	0–6	5.7 (.56)	4–6	< .001
	Conceptualization	34.8 (3.0)	26–39	37.3 (2.0)	31–39	< .001
	Memory	21.1 (3.1)	11–25	24.2 (.80)	22–25	< .001

SD = Standard Deviation

DRS = Mattis Dementia Rating Scale