Table 1.

Mean performance scores (standard deviations) on cognitive tasks as a function of age (young vs. old) and results of one-way ANOVAs on these means

Cognitive task	Age group
	Young	Old	F (1, 51)	p	${\mathit{\eta }}_{\text{p}}^2$
	M (SD)	M (SD)
Vocabulary	30.71 (2.60)	33.50 (1.95)	18.13	< .001	.26
Digit-symbol	84.77 (11.45)	62.59 (11.67)	23.80	< .001	.48
Verbal paired associates	29.84 (1.59)	27.05 (3.48)	15.46	< .001	.23
Logical memory	56.74 (15.77)	49.09 (12.60)	3.56	.065	.07