"The greater variance of males on intelligence tests is one of the best-established findings in psychometric literature"
And this is supported by a graph from 1932? I'm not saying it isn't true, but surely there is more recent data to support one of the "best-established findings" of that field.
The data are from 1932 but the analysis is more recent:
here is what a group of Scottish psychologists found in 2002 when they analyzed the results of IQ tests given to nearly all 11-year-olds in Scotland in 1932
And this is supported by a graph from 1932? I'm not saying it isn't true, but surely there is more recent data to support one of the "best-established findings" of that field.