A Multisite Preregistered Paradigmatic Test of the Ego-Depletion Effect
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Authors
We conducted a preregistered multilaboratory project (k = 36; N = 3,531) to assess the size and robustness of ego-depletion effects using a novel replication method, termed the paradigmatic replication approach. Each laboratory implemented one of two procedures that was intended to manipulate self-control and tested performance on a subsequent measure of self-control. Confirmatory tests found a nonsignificant result (d = 0.06). Confirmatory Bayesian meta-analyses using an informed-prior hypothesis (δ = 0.30, SD = 0.15) found that the data were 4 times more likely under the null than the alternative hypothesis. Hence, preregistered analyses did not find evidence for a depletion effect. Exploratory analyses on the full sample (i.e., ignoring exclusion criteria) found a statistically significant effect (d = 0.08); Bayesian analyses showed that the data were about equally likely under the null and informed-prior hypotheses. Exploratory moderator tests suggested that the depletion effect was larger for participants who reported more fatigue but was not moderated by trait self-control, willpower beliefs, or action orientation.
Original language | English |
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Journal | Psychological Science |
Volume | 32 |
Issue number | 10 |
Pages (from-to) | 1566-1581 |
Number of pages | 16 |
ISSN | 0956-7976 |
DOIs | |
Publication status | Published - 10.2021 |
Bibliographical note
Publisher Copyright:
© The Author(s) 2021.
- ego depletion, open data, open materials, preregistered, registered replication, self-control
- Psychology