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Gepubliceerd in: Psychological Research 3/2021

09-03-2020 | Original Article

Toward a cumulative science of expertise: commentary on Moxley, Ericsson, and Tuffiash (2017)

Auteurs: Brooke N. Macnamara, David Z. Hambrick

Gepubliceerd in: Psychological Research | Uitgave 3/2021

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Abstract

In a recent Psychological Research article, Moxley, Ericsson, and Tuffiash (2017) report two studies of SCRABBLE expertise. The results revealed that the average SCRABBLE rating was higher for males than for females. Moreover, correlational and structural equation analyses revealed that activities that the authors refer to as “purposeful practice” accounted for a substantial amount of the variance in SCRABBLE ratings. The authors generalize their findings concerning SCRABBLE to STEM careers. We believe this generalization is unjustified, as is their argument that SCRABBLE can be used to understand the gender gap in STEM fields. Moreover, the authors’ conclusions are undermined by inconsistencies and contradictions in their arguments. We discuss these problems with Moxley et al.’s article in terms of their impact on the cumulative science of expertise.

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Metagegevens
Titel
Toward a cumulative science of expertise: commentary on Moxley, Ericsson, and Tuffiash (2017)
Auteurs
Brooke N. Macnamara
David Z. Hambrick
Publicatiedatum
09-03-2020
Uitgeverij
Springer Berlin Heidelberg
Gepubliceerd in
Psychological Research / Uitgave 3/2021
Print ISSN: 0340-0727
Elektronisch ISSN: 1430-2772
DOI
https://doi.org/10.1007/s00426-020-01307-2