Here is an actual citation used correctly:
"Furthermore, data from several studies indicate that greater male variability with respect to mathematics is not ubiquitous. Rather, its presence correlates with several measures of gender inequality. Thus, it is largely an artifact of changeable sociocultural factors, not immutable, innate biological differences between the sexes"
KICK. ROCKS.
https://www.pnas.org/doi/10.1073/pnas.0901265106