Table 5.

Variance in cognitive performance attributable to age.

Cognitive Tests	Robust Normals	SADP	Combined Sample
Episodic Memory	R²	R²	R²
WMS-R Logical Memory Immediate	0.004	0.181^***	0.064^***
WMS-R Logical Memory Delayed	0.007	0.214^***	0.072^***
WMS Associate Learning	0.024^*	0.185^***	0.067^***
FCSRT Total Recall	0.029^*	0.125^**	0.078^***
FCSRT Free Recall	0.039^*	0.193^***	0.082^***
BVRT Delayed	0.032^*	0.298^***	0.124^***
Executive/Visuospatial
Trails A (seconds)	0.033^*	0.052^*	0.045^***
Trails B (seconds)	0.065^***	0.240^***	0.132^***
WMS-R Digit Span Forward	0.008	0.022	0.014
WMS-R Digit Span Backward	0.016	0.017	0.014
WMS-R Digit Symbol Coding	0.078^***	0.256^***	0.142^***
WMS Mental Control	0.036^*	0.001	0.010
WAIS Block Design	0.015	0.195^***	0.06^***
Language/Semantic
Animal Fluency	0.068^***	0.170^***	0.101^***
Vegetable Fluency	0.017	0.072^*	0.041^**
Word Fluency Letters S&P total	0.016	0.061^*	0.026^**
Boston Naming Test	0.029^*	0.088^**	0.053^***
WAIS Information	0.005	0.001	0.003

^***

p < 0.001

^**

p < 0.01

p < 0.05