Table 7.

Mean Levels of Performance (and Standard Deviations) Across Sessions After Adjusting for Version Differences, Study 2 (N = 1,600, 1,457), and Correlations With Age

	Session 1			Session 2			Session 3
Variable	M	SD	r	M	SD	r	M	SD	r
Vocabulary	52.4	9.5	.06	52.4	6.8	.04	52.3	7.1	.13
Picture vocabulary	19.2	5.0	.27	18.5	3.8	.01	18.6	4.4	.10
Synonym vocabulary	7.3	2.7	.28	7.1	2.1	.19	7.1	2.0	.24
Antonym vocabulary	6.7	2.8	.18	6.6	1.7	.10	6.8	1.9	.12
Matrix reasoning	7.8	3.5	−.56	8.0	3.0	−.53	7.9	2.9	−.57
Letter sets	11.2	2.8	−.36	11.2	2.4	−.27	11.4	2.1	−.26
Shipley abstraction	13.4	3.6	−.46	13.4	2.8	−.46	13.7	2.7	−.49
Spatial relations	8.8	5.0	−.38	10.00	3.3	−.32	10.6	3.7	−.37
Paper folding	6.1	2.7	−.47	7.0	1.7	−.41	7.3	1.4	−.43
Form boards	7.1	4.5	−.48	7.5	3.2	−.52	8.4	2.9	−.39
Recall	35.1	6.4	−.42	35.8	4.4	−.49	35.9	5.0	−.44
Logical memory	44.6	9.7	−.28	44.5	7.9	−.35	45.7	6.6	−.30
Paired associates	3.1	1.8	−.41	3.3	1.2	−.39	3.4	1.3	−.43
Digit symbol	72.6	18.4	−.60	77.6	18.3	−.47	78.9	18.5	−.48
Letter comparison	10.4	2.5	−.51	10.8	2.2	−.48	10.9	2.2	−.48
Pattern comparison	15.6	3.8	−.55	16.4	3.9	−.58	17.0	3.9	−.59

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.