. Author manuscript; available in PMC: 2011 Dec 1.

Published in final edited form as: Psychol Aging. 2010 Dec;25(4):753–766. doi: 10.1037/a0019277

Table 5.

ANOVA for ability measures.

	F Ratios
	Order (condition)	Time (practice)	Order by Time Interaction
Crystallized Ability Tests
Sentence Completion	1.02 (.12)^a	1.01 (.12)^a	2.30 (.18)
Verbal Analogies	1.67 (.15)	1.11 (.12)^a	.02 (.02)^a
Verbal Classification	2.61 (.19)	.59 (.09)^a	1.87 (.16)
Fluid Ability Tests
Figural Analogies	1.62 (.15)	1.96 (.16)	1.59 (.15)
Number Series	2.11 (.17)	5.47^** (.27)	.87 (.11)^a
Figure Analysis (paper folding)	7.30^** (.31)	9.30^** (.35)	.37 (.07)^a
Perceptual Speed Ability Tests
Name Comparison	2.62 (.19)	24.44^** (.57)	.23 (.06)^a
Factors of 7	1.97 (.16)	48.45^** (.80)	1.30 (.13)^a
Naming Symbols	.64 (.09)^a	77.30^** (1.00)	1.31 (.13)^a
Digit/Symbol Substitution	2.08 (.17)	9.28^** (.35)	.34 (.07)^a
df	1,76	2,152	2,152

N = 78

^**

p < .01

Note: Effect size (f) in parenthesis.

The expected value of F is 1.0 when the null hypothesis is true (and therefore, there is no effect of the factor in question. Cohen’s f statistic is not meaningful or interpretable as the F ratio tends toward or below 1.00 (see Voelkle, Wittmann, & Ackerman, 2007). These values are reported only for reference information.