. Author manuscript; available in PMC: 2022 Apr 5.

Published in final edited form as: Clin Neuropsychol. 2020 Sep 3;35(1):148–164. doi: 10.1080/13854046.2020.1811893

Table 3.

Construct Validity: Associations with demographic and clinical variables (criterion-related validity)

	Age	Education	HbA1c	eGFR

TMB Digit Symbol Matching	−.59	.16	−.17	.54
WAIS-IV Coding	−.40	.11	−.21	.37

TMB Digit Span Forward	−.01	.46	.20	.02
WAIS-IV Digit Span Forward	−.09	.37	.12	.04

TMB Digit Span Backward	−.22	.10	−.18	.04
WAIS-IV Digit Span Backward	−.10	.32	.04	.21

TMB LNS	−.06	.29	.18	.06
WAIS-IV LNS	−.18	.23	.01	.31

TMB Matrix Reasoning	−.21	.24	−.26	.19
WAIS-IV Matrix Reasoning	−.27	.40	−.15	.34

TMB Vocabulary	.52 ^*	.43	.14	−.39
WAIS-IV Vocabulary	.12^*	.47	.17	−.20

TMB= TestMyBrain.org; WAIS-IV= Wechsler Adult Intelligence Scale – 4^th edition; LNS= Letter-Number Switching; HbA1c = hemoglobin A1c; eGFR = estimated glomerular filtration rate

N= 49; Note: HbA1c missing 2 and eGFR missing 1

Steiger’s Z = 3.30, p=.001

Statistically significant correlations appear in bold (p<0.05).