TY - JOUR
T1 - A dynamical model of general intelligence
T2 - The positive manifold of intelligence by mutualism
AU - van der Maas, H.L.J.
AU - Dolan, C.V.
AU - Grasman, R.P.P.P.
AU - Wicherts, J.M.
AU - Huizenga, H.M.
AU - Raijmakers, M.E.J.
PY - 2006
Y1 - 2006
N2 - Scores on cognitive tasks used in intelligence tests correlate positively with each other, that is, they display a positive manifold of correlations. The positive manifold is often explained by positing a dominant latent variable, the g factor, associated with a single quantitative cognitive or biological process or capacity. In this article, a new explanation of the positive manifold based on a dynamical model is proposed, in which reciprocal causation or mutualism plays a central role. It is shown that the positive manifold emerges purely by positive beneficial interactions between cognitive processes during development. A single underlying g factor plays no role in the model. The model offers explanations of important findings in intelligence research, such as the hierarchical factor structure of intelligence, the low predictability of intelligence from early childhood performance, the integration/differentiation effect, the increase in heritability of g, and the Jensen effect, and is consistent with current explanations of the Flynn effect.
AB - Scores on cognitive tasks used in intelligence tests correlate positively with each other, that is, they display a positive manifold of correlations. The positive manifold is often explained by positing a dominant latent variable, the g factor, associated with a single quantitative cognitive or biological process or capacity. In this article, a new explanation of the positive manifold based on a dynamical model is proposed, in which reciprocal causation or mutualism plays a central role. It is shown that the positive manifold emerges purely by positive beneficial interactions between cognitive processes during development. A single underlying g factor plays no role in the model. The model offers explanations of important findings in intelligence research, such as the hierarchical factor structure of intelligence, the low predictability of intelligence from early childhood performance, the integration/differentiation effect, the increase in heritability of g, and the Jensen effect, and is consistent with current explanations of the Flynn effect.
U2 - 10.1037/0033-295X.113.4.842
DO - 10.1037/0033-295X.113.4.842
M3 - Article
SN - 0033-295X
VL - 113
SP - 842
EP - 861
JO - Psychological Review
JF - Psychological Review
IS - 4
ER -