https://www.amren.com/features/2022/01/how-and-why-men-and-women-differ-in-intelligence/ F. Roger Devlin, American Renaissance, January 7, 2022 Richard Lynn, Sex Differences in Intelligence: The Developmental Theory , Arktos Media, Ltd., 2021, 131 pp., $14.95 paper, $4.99 Kindle Before the 20th century, it was commonly asserted that men are more intelligent than women. Besides the relative lack of high achievement by women historically, this view seemed supported by biology. For example, in 1887, an Oxford professor of medicine reported that the average male brain was five ounces heavier than that of the average female. Shortly after the first intelligence tests were developed by Binet and Simon in 1905, however, researchers began reporting that the difference in average intelligence between the sexes was zero or very small. Richard Lynn cites no fewer than 40 testimonies to this effect between 1910 and 2021; most date from 2000 and later. They often refer to “overwhe...