Strength of association between sex and field dependence

An index of the strength of association between sex and each of two measures of field dependence, the Rod and Frame Test and Embedded Figures Test, was calculated based upon reported significant sex differences on these measures. Median omega2 values based upon 20 rod-and-frame results and 18 embedded-figures results are .11 for the former and .12 for the latter. It appears that gender accounts for less than 15% of the variance in field-dependence scores.