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The cause(s) of ubiquitous cognitive differences between American self-identified racial/ethnic groups (SIREs) is uncertain. Evolutionary-genetic models posit that ancestral genetic selection pressures are the ultimate source of these differences. Conversely, sociological models posit that these differences result from racial discrimination. To exa...
The OpenPsych journals were set up in 2014 by Emil Kirkegaard and Davide Piffer due to dissatisfaction with existing journals in differential psychology and behavioural genetics. To date, 51 papers have been published in total, encompassing a range of topics from differential psychology and behavioural genetics to socio-political science. However,...
Following WW2, various researchers found and reported secular gains in IQ, but it was not until additional reports appeared in the 1980s that researchers began to look for the cause or causes. It was quickly apparent that the gains were not limited to any group or nation, but the manifestation of the gains was different depending on time and place....
