Table 3.

MANOVA results, 15 factors (n = 63, excluding mental imagery)

	n	Λ Wilk	F	Effect df	Error df	p	${\mathrm{\eta }}_{\mathrm{p}}^2$ a
Group	29 syn/34 controls	.54	2.61	15	46	.0064	.46
Sex	22 men/41 women	.47	3.43	15	46	.0006	.53

^aWe conventionally report the Partial Eta square measure of effect size, but we do not think this measure is really appropriate. It probably overestimates the effect size (Cumming, 2012), and anyway seems difficult to interpret. We propose an alternative approach (see text).