International differences in the speed of cognitive development: A systematic examination of the existence of the Simber Effect

The Simber Effect refers to the phenomenon whereby, in Arabic countries, young children have an IQ that is little different from that of Western children but that these differences increase throughout childhood culminating in a difference of around 20 points by adulthood. The true nature of this phe...

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Bibliographic Details
Main Authors: David Becker, Gerhard Meisenberg, Edward Dutton, Salaheldin Farah Attallah Bakhiet, Fayez Abdulaziz Alfayez, Yossry A.S. Essa
Format: Article
Language:English
Published: Elsevier 2023-10-01
Series:Acta Psychologica
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0001691823001919