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The meta-analyses of deliberate practice underestimate the effect size because they neglect the core characteristic of individualization—an analysis and empirical evidence

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Debatin, Tobias ; Hopp, Manuel D. S. ; Vialle, Wilma ; Ziegler, Albert
License: Creative Commons Attribution 4.0
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Date of publication of this fulltext: 19 Oct 2021 04:44

This publication is part of the DEAL contract with Springer.


Influential meta-analyses have concluded that only a small to medium proportion of variance in performance can be explained by deliberate practice. We argue that the authors have neglected the most important characteristic of deliberate practice: individualization of practice. Many of the analyzed effect sizes derived from measures that did not assess individualized practice and, therefore, ...


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