Table 3.

Mean Levels of Performance (and Standard Deviations) Across Sessions and Age Correlations When Versions Were Presented in Counterbalanced Order, Study 1 (N = 90)

	Session 1			Session 2			Session 3
Variable	M	SD	r	M	SD	r	M	SD	r
Vocabulary	54.0	9.5	.08	54.5	9.9	.07	55.5	8.4	.15
Picture vocabulary	19.0	5.4	.25	19.6	9.9	.01	20.1	5.1	.12
Synonym vocabulary	6.9	2.2	.29	6.9	2.2	.18	7.0	2.4	.24
Antonym vocabulary	5.6	2.7	.03	6.0	2.4	.21	6.2	2.6	.27
Matrix reasoning	7.7	3.6	−.57	7.7	3.8	−.56	8.3	4.5	−.64
Letter sets	10.9	2.5	−.42	11.0	2.6	−.37	11.3	2.3	−.29
Shipley	12.3	3.7	−.55	13.0	3.8	−.55	13.3	4.0	−.48
Spatial relations	9.6	3.9	−.52	10.2	4.3	−.63	10.4	4.5	−.50
Paper folding	5.9	2.9	−.60	7.0	3.1	−.57	7.0	3.3	−.57
Form boards	7.4	4.9	−.58	8.4	4.9	−.70	8.1	5.3	−.48
Recall	34.1	7.0	−.48	35.7	7.1	−.60	35.1	7.2	−.53
Logical memory	47.5	11.4	−.39	48.3	12.1	−.44	50.1	11.2	−.33
Paired associates	3.0	1.9	−.44	3.2	1.8	−.49	3.2	1.9	−.51
Digit symbol	75.5	20.8	−.67	78.3	21.6	−.64	81.5	22.4	−.71
Letter comparison	10.4	2.6	−.51	10.1	2.7	−.49	10.5	2.7	−.52
Pattern comparison	15.4	4.3	−.67	16.4	4.6	−.59	16.6	5.1	−.68