The Average IQ Of Sub Saharan Africans
Wicherts, Dolan, and van der Maas (2009) contend that the average IQ of sub-Saharan Africans is about 80. A critical evaluation of the studies presented by WDM shows that many of these are based on unrepresentative elite samples. We show that studies of 29 acceptably representative samples on tests other than the Progressive Matrices give a sub-Saharan Africa IQ of 69; studies of the most satisfactory representative samples on the Standard Progressive Matrices give an IQ of 66; studies of 23 acceptably representative samples on the Colored Progressive Matrices give an IQ of 71. The international studies of mathematics, science, and reading give a sub-Saharan African IQ of 66. The four data sets can be averaged to give an IQ of 68 as the best reading of the IQ in sub-Saharan Africa.

The Average IQ Of Sub Saharan Africans
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Richard Lynn , Gerhard Meisenberg