Norwegian IQ scores are falling – but genes are not to blame
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Bratsberg, Bernt and Ole Røgeberg
After several decades of increasing IQ scores, the average score of Norwegian male conscripts began to decline with the birth cohorts born after 1975. Both the increase and decline, however, can be identified by comparing siblings with the same mother and father, ruling out genetic explanations.
Project:Oppdragsgiver: Norges Forskningsråd
Oppdragsgivers prosjektnr.: 236992
Frisch prosjekt: 1178 - Egalitarianism under pressure? New perspectives on inequality and social cohesion