. Author manuscript; available in PMC: 2021 Nov 1.

Published in final edited form as: Psychol Aging. 2020 Jun 25;35(7):1016–1025. doi: 10.1037/pag0000550

Table 2:

Pearson bivariate correlations between demographic, biomarker, and behavioral test scores (n=52).

Variable	Total Autocorrect Errors	Paragraph Reading Time	Age	Aβ1–42	Tau	Education	DRS	CVLT Trials 1–5	CWIT-I Inhibition RT	CWIT Inhibition Switching RT
Total Errors	1
Reading Time	0.36^**	1
Age	0.34^*	0.15	1
Aβ1–42^a	−0.36^**	−0.02	−0.25	1
Tau	0.06	−0.12	0.19	−0.04	1
Education	0.02	−0.10	−0.14	−0.04	0.13	1
DRS^a	−0.28^*	−0.10	−0.05	0.02	0.16	−0.10	1
CVLT^a Trials 1–5	−0.30^*	0.00	0.08	0.12	0.26	−0.16	0.45^***	1
CWIT^a -Inhibition RT	0.47^***	0.42^**	0.27	−0.10	0.11	0.14	−0.24	−0.35^*	1
CWIT^a -Inhibition Switching RT	0.47^***	0.40^**	0.26	−0.21	0.02	−0.03	−0.39^**	−0.34^*	0.63^***	1
CWIT^a -Inhibition Errors	0.30^*	0.01	0.17	−0.28^*	0.21	0.12	−0.18	−0.05	0.22	0.02
CWIT^a -Inhibition Switching Errors	−0.08	−0.06	−0.08	−0.14	−0.06	0.11	−0.13	−0.15	−0.05	0.09

p < .05.

^**

p < .01.

^***

p < .001

Aβ1–42 = Amyloid β, DRS = Dementia Rating Scale, CVLT = California Verbal Learning Test, CWIT = Color Word Interference Test, RT = Response Time