Table 2.

Hierarchical Regression Models Predicting Performance

	Cognistat Memory			Cognistat Similarities			Retention CERAD			Total Learning CERAD			CERAD Delayed Recall

Predictor	B	SE	R² Change	B	SE	R² Change	B	SE	R² Change	B	SE	R² Change	B	SE	R² Change

Intercept	8.820	.261		6.757	.145		66.260	2.756		18.883	.428		5.198	.234
HT	.719	.376	0.02	.949^**	.209	0.09	11.952^**	3.982	0.041	1.372^*	.619	0.023	.988^**	.337	0.039

Intercept	14.772	1.761	.128^**	5.613	.990	.097^**	134.024	19.270	.065^**	29.534	2.944	.096^**	12.117	1.586	.116^**
HT	.131	.371		.657^**	.209		8.922^*	4.066		.630	.621		.574	.335
Age	-.110^**	.022		-.015	.012		-.925^**	.237		-.169^**	.036		-.104^**	.020
Education	.203^**	.062		.174^**	.035		.383	.679		.200	.104		.094	.056

Intercept	15.016	1.705	.071^**	5.703	.986	.025	132.559	19.204	.026	30.056	2.814	.094^**	12.151	1.558	.048^**
HT	-.047	.361		.598^**	.209		8.338^*	4.062		.293	.595		.452	.330
Age	-.105^**	.021		-.013	.012		-.922^**	.236		-.161^**	.035		-.101^**	.019
Education	.182^**	.061		.165^**	.035		.460	.685		.192	.100		.084	.056
GDS	-.247^**	.074		-.079	.043		-.811	.829		-.544^**	.121		-.159^*	.067
alcohol	.809^*	.367		.267	.212		6.593	4.132		1.133	.605		.819^*	.335
cardio risk	-.665	.724		-.370	.418		13.364	8.148		.612	1.194		.172	.661
Full Model R²			22%			21%			13%			21%			20%
f²			0.28			0.27			0.15			0.27			0.25

	STROOP Color				STROOP Color-Word				Fluency				MMSE

Predictor	B		SE	R² Change	B		SE	R² Change	B		SE	R² Change	B	SE	R² Change

Intercept	59.811		1.524		27.423		1.049		16.685		.529		27.829	.195
HT	3.013		2.202	0.01	4.233^**		1.516	0.036	1.629		.764^*	0.021	.710^*	.283	0.029

Intercept	116.776		9.962	.184^**	55.681		7.124	.117^**	31.735		3.517	.153^**	30.902	1.359	.077^**
HT	-.262		2.102		2.180		1.503		.396		.742		.353	.287
Age	-.843^**		.123		-.457^**		.088		-.256		.043^**		-.062^**	.017
Education	.705^*		.351		.575^*		.251		.380		.124^**		.133^**	.048

Intercept	119.074		9.395	.106^**	56.789		6.616	.133^**	31.838		3.501	.026	30.950	1.367	.010
HT	-1.391		1.987		1.358		1.399		.235		.741		.314	.289
Age	-.797^**		.115		-.420^**		.081		-.248		.043^**		-.061^**	.017
Education	.471		.335		.364		.236		.328		.125^**		.138^**	.049
GDS	-1.439^**		.406		-.875^**		.286		-.131		.151		-.074	.059
alcohol	4.244^*		2.021		4.716^**		1.423		1.265		.753		.109	.294
cardio risk	-13.013^**		3.986		-10.733^**		2.807		-2.490		1.485		.499	.580
Full Model R²				30%				29%				20%			12%
f²				0.43				0.40				0.25			0.13

^**

p < 0.01;

p < 0.05