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Brouwers, Symen A.; van de Vijver, Fons J. R.; Mishra, Ramesh C. – International Journal of Behavioral Development, 2017
The influences of schooling and everyday experiences on cognitive development are typically confounded. In the present study, we unraveled the influence of chronological age and years of schooling on the development of general cognitive competency in a two-wave longitudinal design with a three-year interval among 181 Kharwar children in India,…
Descriptors: Foreign Countries, Cognitive Development, Children, Longitudinal Studies
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Cornoldi, Cesare; Belacchi, Carmen; Giofre, David; Martini, Angela; Tressoldi, Patrizio – Intelligence, 2010
Working with data from the PISA study (OECD, 2007), Lynn (2010) has argued that individuals from South Italy average an IQ approximately 10 points lower than individuals from North Italy, and has gone on to put forward a series of conclusions on the relationship between average IQ, latitude, average stature, income, etc. The present paper…
Descriptors: Foreign Countries, Intelligence Quotient, Intelligence Differences, Research Methodology