Submission status
Reviewing
Submission Editor
Submission editor not assigned yet.
Title
Meta-analysis of sex differences in intelligence
Abstract
There is no consensus within the field of psychology on whether there are sex differences in intelligence. To test this hypothesis, 2,089 effect sizes were compiled, representing 15,976,369 individuals that tested sex differences in ability. Men scored 2.58 IQ points (95% CI [1.93, 3.23], I^2 = 99.2%) above women on general ability tests within adults. Whether this difference is due to general intelligence (g) is not clear.
Three of the four methods used to test the developmental theory of sex differences suggested that the male advantage in ability increases with age. There were substantial differences in subtest performance representing more specific abilities, with men scoring 0.71 (95% CI [0.55, 0.87], p < .001) standard deviations higher in mechanical reasoning and women scoring 0.29 SD (95% CI [0.43, 0.15], p < .001) higher in processing speed.
Keywords
intelligence,
IQ,
gender,
sex
Reviewer 1: Considering / Revise
