. Author manuscript; available in PMC: 2015 May 8.

Published in final edited form as: J Int Neuropsychol Soc. 2014 Jun 24;20(6):630–641. doi: 10.1017/S1355617714000319

Table 2.

Age-related Correlations and Test-retest Correlations for the NIHTB Pattern Comparison Processing Speed Test and the NIHTB Processing Speed Composite Score (using the NIHTB Pattern Comparison Processing Speed Test, the NIH Toolbox DCCS, and the NIHTB Flanker Inhibitory Control Test) for Adults Ages 20 to 85 Years

NIHTB Cognition Domain Measure	Age-related correlations		Test-retest correlations
NIHTB Cognition Domain Measure	df	r	df	r
NIHTB Pattern Comparison Processing Speed Test	262	− .55	87	.74
NIHTB Processing Speed Composite	265	− .57	87	.82

Note. All p <.0001; DCCS = Dimensional Change Card Sort.