Table 8.

Correlations between subjective and genital arousal for women by type of physiological measure (selected studies, between-subjects)

	VPA	VBV	Thermography
Average effect size (r)	.27	.28	.55
95% confidence intervals	.17 to .35	.07 to .49	.28 to .82
Samples (K)	42	7	6
Sample size (n)	1,018	118	97
Number of studies	35	7	5
Homogeneity (Q)	59.2	6.4	6.5
	p < .05	p = .38	p = .26

Note: Selected studies refer to basic samples, without experimental manipulations, and with standard external sexual stimuli. A significant Q value means that effect sizes are not homogeneous, suggesting the presence of one or more moderator variables