Since IQ testing began about 100 years ago, women have been as much as five points behind men, however, according to James Flynn, a world-renowned authority on IQ tests, women have now moved ahead.
Flynn gathered IQ examination results from countries in western Europe, the United States, Canada, New Zealand, Argentina and Estonia.
He told The Daily Mail: "In the last 100 years the IQ scores of both men and women have risen but women’s have risen faster. This is a consequence of modernity. The complexity of the modern world is making our brains adapt and raising our IQ."
Flynn says that one possible explanation is that women have to multitask between raising a family and doing a job, or it may be that women have always had a slightly higher potential intelligence than men, but are only now realizing it [which may be a contradiction in itself].
Flynn, who will publish his findings in a book, said more data is needed: "The full effect of modernity on women is only just emerging. As the world gets more complex, and living in it demands more abstract thought, so people are adapting. I suspect that the same trends are happening in Britain, too, although the data is too sparse to be sure."