Table 9.

Correlations of Mean and Within-Person Standard Deviation With Age, Study 2 (N = 1,600, 1,457)

		Age correlations
Variable	Correlation M.SD	M	M.SD	SD	SD.M
Vocabulary	−.45	.08	.09	.03	.06
Picture vocabulary	−.26	.15	.17	.07	.11
Synonym vocabulary	−.42	.28	.24	−.10	.02
Antonym vocabulary	−.32	.16	.17	.03	.08
Matrix reasoning	−.11	−.60	−.61	−.02	−.11
Letter sets	−.47	−.35	−.31	.08	−.08
Shipley	−.37	−.51	−.47	.15	−.05
Spatial relations	−.22	−.40	−.39	.04	−.05
Paper folding	−.42	−.50	−.42	.20	−.00
Form boards	.12	−.53	−.52	−.11	−.06
Recall	−.33	−.50	−.45	.16	−.01
Logical memory	−.23	−.35	−.35	−.02	−.11
Paired associates	−.11	−.47	−.47	−.00	−.06
Digit symbol	−.02	−.57	−.57	.05	.04
Letter comparison	.05	−.53	−.54	.01	.04
Pattern comparison	.04	−.62	−.62	−.14	−.15

Note. The Letter Sets, Shipley, and Form Boards tests were not administered to all participants, and thus the sample size for these variables was 1,457 instead of 1,600.