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Article Dans Une Revue Perspectives on Psychological Science Année : 2023

How the Complexity of Psychological Processes Reframes the Issue of Reproducibility in Psychological Science

Résumé

In the past decade, various recommendations have been published to enhance the methodological rigor and publication standards in psychological science. However, adhering to these recommendations may have limited impact on the reproducibility of causal effects as long as psychological phenomena continue to be viewed as decomposable into separate and additive statistical structures of causal relationships. In this article, we show that (a) psychological phenomena are patterns emerging from nondecomposable and nonisolable complex processes that obey idiosyncratic nonlinear dynamics, (b) these processual features jeopardize the chances of standard reproducibility of statistical results, and (c) these features call on researchers to reconsider what can and should be reproduced, that is, the psychological processes per se, and the signatures of their complexity and dynamics. Accordingly, we argue for a greater consideration of process causality of psychological phenomena reflected by key properties of complex dynamical systems (CDSs). This implies developing and testing formal models of psychological dynamics, which can be implemented by computer simulation. The scope of the CDS paradigm and its convergences with other paradigms are discussed regarding the reproducibility issue. Ironically, the CDS approach could account for both reproducibility and nonreproducibility of the statistical effects usually sought in mainstream psychological science.
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Dates et versions

hal-04222898 , version 1 (29-09-2023)

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Christophe Gernigon, Ruud den Hartigh, Robin Vallacher, Paul van Geert. How the Complexity of Psychological Processes Reframes the Issue of Reproducibility in Psychological Science. Perspectives on Psychological Science, 2023, pp.17456916231187324. ⟨10.1177/17456916231187324⟩. ⟨hal-04222898⟩
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