. Author manuscript; available in PMC: 2013 May 1.

Published in final edited form as: Neuropsychology. 2012 May;26(3):288–303. doi: 10.1037/a0027970

Table 6.

Task performance and effect sizes by group and ACPT task condition for Study 2

	Relatives M (SD)	Normal Controls M (SD)	d ^a	d ^b
QA correct hit %	.95 (.07)	.96 (.07)	0.22	0.31
Q3A-MEM correct hit %	.83 (.12)	.86 (.14)	0.20	0.35^*
Q3A-INT correct hit %	.53 (.17)	.59 (.18)	0.38^*	0.54^**
QA d’	4.03 (.34)	4.09 (.32)	0.17	0.27
Q3A-MEM d’	3.47 (.57)	3.58 (.59)	0.21	0.36^*
Q3A-INT d’	2.41 (.62)	2.62 (.58)	0.36^*	0.57^**

Note. Means and standard deviations are unadjusted. d = Cohen’s d. d’ is a measure of efficiency that takes into account both hit and false alarm rate.

p < .05;

^**

p < .01;

^***

p < .001 (one tailed)

ANOVAs and effect sizes based on unadjusted group means and standard deviations

ANCOVAs controlling for age;

Cohen’s d based on least squared means.