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Estimating the Strength of a General Factor: Coefficient Omega Hierarchical

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  • Gignac, Gilles E.

Abstract

Relying on work described by Jackson (2003), Ree, Carretta, and Teachout (2015) recommended researchers use the first unrotated principal component associated with a principal components analysis (PCA) to estimate the strength of a general factor. Arguably, such a recommendation is based on rather old work. Furthermore, it is not a method that can be relied on to yield an accurate solution. For example, it is well known that the first component extracted from a correlation matrix of the Wechsler intelligence subtests is biased toward the verbal comprehension subtests (Ashton, Lee, & Vernon, 2001).

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  • Gignac, Gilles E., 2015. "Estimating the Strength of a General Factor: Coefficient Omega Hierarchical," Industrial and Organizational Psychology, Cambridge University Press, vol. 8(3), pages 434-438, September.
    • Handle: RePEc:cup:inorps:v:8:y:2015:i:03:p:434-438_00
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    Cited by:

    1. Otero, Inmaculada & Salgado, Jesús F. & Moscoso, Silvia, 2022. "Cognitive reflection, cognitive intelligence, and cognitive abilities: A meta-analysis," Intelligence, Elsevier, vol. 90(C).

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