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General intelligence is a source of individual differences between species: Solving an anomaly

  • Michael A. Woodley of Menie (a1) (a2), Heitor B. F. Fernandes (a3), Jan te Nijenhuis (a4), Mateo Peñaherrera-Aguirre (a5) and Aurelio José Figueredo (a3)...

Abstract

Burkart et al. present a paradox – general factors of intelligence exist among individual differences (g) in performance in several species, and also at the aggregate level (G); however, there is ambiguous evidence for the existence of g when analyzing data using a mixed approach, that is, when comparing individuals of different species using the same cognitive ability battery. Here, we present an empirical solution to this paradox.

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Herrmann, E., Hernandez-Lloreda, M. V., Call, J., Hare, B. & Tomasello, M. (2010b) The structure of individual differences in the cognitive abilities of children and chimpanzees. Psychological Science 21(1):102–10.
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Woodley of Menie, M. A., Fernandes, H. B. F. & Hopkins, W. D. (2015) The more g-loaded, the more heritable, evolvable, and phenotypically variable: Homology with humans in chimpanzee cognitive abilities. Intelligence 50:159–63. Available at: http://doi.org/10.1016/j.intell.2015.04.002.

General intelligence is a source of individual differences between species: Solving an anomaly

  • Michael A. Woodley of Menie (a1) (a2), Heitor B. F. Fernandes (a3), Jan te Nijenhuis (a4), Mateo Peñaherrera-Aguirre (a5) and Aurelio José Figueredo (a3)...

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