The EQ figures shown in the right column were based on a test taken by students who had been accepted to a tertiary education institution:
Data for cognitive ability in 79 provinces and regions of the Russian Federation have been reported by Griogriev et al. (2016). The ability measure in this study consisted of the scores obtained by young people in the Unified State Examination (USE), a scholastic achievement test administered nation-wide. The scores were those of students who had been accepted by state universities and institutions for tertiary education in the year 2014.
The IQ data from this study was based on an online test which assesses eligibility for voluntary military service (not conscription). Therefore the participants of the IQ test were self-selected, and they are not necessarily representative of the overall Russian population. You can try the test yourself here (in Russian): https://recrut.mil.ru/career/soldiering/test.htm.
The IQ scores in this study were normed against the average score of the people who took the military test. Therefore they are not comparable to Lynn's national IQ scores, which use UK norms.
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