In support of extreme groups design for studying masculinity-femininity and intelligence

Humphreys (this issue) reanalyzed the data of Welsh and Baucom (1977) and stated that their conclusions were unsupportable. Humphreys's criticisms are inappropriate since his findings are based upon a measure of masculinity-femininity (M-F) which is different from the previous approach and based upon a sample which is somewhat different. Thus he addresses issues which are inconsistent with Welsh and Baucom's focus. Finally, Humphreys's insistence on correlational analysis to the exclusion of extreme groups design is viewed as inappropriately limiting.