. Author manuscript; available in PMC: 2011 Sep 1.

Published in final edited form as: Psychol Aging. 2010 Sep;25(3):545–559. doi: 10.1037/a0018498

Table 3.

Inter-correlations among predictor variables used to predict Dementia of the Alzheimer’s Type.

	WAIS Block	Benton Copy	Digits For	Digits Back	WAIS Info	Boston Naming	Word Fluency	Animal Fluency	MMSE	NART
Incongruent Errors	−.474^*	−.313^*	−.196^{^}	−.287^*	−.317^*	−.401^*	−.424^*	−.394^*	−.418^*	−.380^*
Logical Memory Imm	+.381^*	+.205^{^}	+.211^*	+.252^*	+.489^*	+.454^*	+.262^*	+.513^*	+.240^*	+.302^*
Logical Memory del	+.392^*	+.205^{^}	+.144	+.211^*	+.488^*	+.485^*	+.218^*	+.487^*	+.283^*	+.257^*
Assoc Recog	+.400^*	+.289^*	+.200^{^}	+.319^*	+.364^*	+.482^*	+.375^*	+.487^*	+.389^*	+.290^*
Assoc Recall	+.384^*	+.165	+.097	+.092	+.286^*	+.223^*	+.171	+.153	+.652^*	+.271^*
Select Remind Task	+.297^*	+.289^*	+.094	+.221^*	+.213^*	+.318^*	+.416^*	+.501^*	+.462^*	+.150
Trails A	−.311^*	−.355^*	−.169	−.157	−.241^*	−.189^{^}	−.426^*	−.448^*	−.266^*	−.348^*
Trails B	−.588^*	−.380^*	−.295^*	−.317^*	−.264^*	−.230^*	−.493^*	−.559^*	−.436^*	−.412^*
Digit/symbol	+.482^*	+.350^*	+.163	+.258^*	+.310^*	+.311^*	+.475^*	+.652^*	+.279^*	+.393^*
WAIS Block	1	+.363^*	+.228^*	+.252^*	+.468^*	+.451^*	+.284^*	+.409^*	+.377^*	+.255^*
Benton Copy		1	+.161	+.214^*	+.205^{^}	+.393^*	+.327^*	+.224^*	+.277^*	+.272^*
Digits Forward			1	+.454^*	+.054	+.050	+.269^*	+.275^*	+.291^*	+.290^*
Digits Backward				1	+.150	+.175^{^}	+.366^*	+.307^*	+.209^*	+.291^*
WAIS Info					1	+.603^*	+.217^*	+.433^*	+.168	+.424^*
Boston Naming						1	+.152	+.433^*	+.273^*	+.176^*
Word Fluency							1	+.417^*	+.247^*	+.435^*
Animal Fluency								1	+.184^*	+.331^*
MMSE									1	+.293^*
NART										1

Note.

p < .05.

^{^}

p < .10.