It's not been a good month for the theory of ego-depletion - the idea that self-control is a limited resource that can be depleted by overuse. Two weeks ago, researchers reported evidence of bias in the published literature examining the question of whether glucose can reverse ego-depletion. Now, the very existence of the ego-depletion phenomenon has been questioned by an international collaboration of psychologists who conducted a preregistered replication attempt (RRR). The results have just been published in Perspectives on Psychological Science (although they've been circulating for a while.) 23 labs participated in the replication effort, with a total final sample size of 2,141 participants. The project was co-ordinated on the Open Science Framework (OSF) and the paper was written by Martin Hagger and Nikos Chatzisarantis. Methodologically, the replicators did not attempt to reproduce the original version of the ego-depletion task, saying that "the tasks used in the original experiments ...
The End of Ego-Depletion Theory?
The ego depletion phenomenon faces scrutiny as a large replication study finds no significant effects, challenging previous theories.
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