The big g‐factor of national cognitive ability

Abstract

The response deals with several controversial issues: theoretical concepts of cognitive abilities, their cultural relativity in definition or level, the meaning and validity of national cognitive ability, methodological questions like the ecological fallacy, the variance of intelligence at different levels of observation, multi‐level analysis, the correctness and importance of levels of analysis in cognitive‐ability research, the aggregation and adjustment process, and the similarities of different cognitive assessment approaches. Central to this research are questions of causality (the causes and consequences of national cognitive‐ability homogeneity and level), of malleability of these levels, and of ethical and political consequences of intelligence research. Copyright © 2007 John Wiley & Sons, Ltd.

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