Ego depletion theory effects

Collection type: Multi-effect Multi-method Multi-lab Replications 32

Collection contains 32 replications of 2 ego depletion effects across 7 methods.

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Forest plots

Replications 32

Original Studies & Replications Effect size (d) [95% CI]
Prediction #1: Glucose consumption counteracts ego depletion
Effect #1 Method #1: Glucose consumption counteracts ego depleting effect of video attention task on Stroop performance
Gaillot, Baumeister et al. (2007) Study 7
Cesario & Corker (2010)
Effect #1 Method #2: Glucose consumption counteracts ego depleting effect of repeated completion of future-discounting task
Wang & Dvorak (2010)
Lange & Eggert (2014) Study 1
Prediction #2: Self-control impairs further self-control
Effect #2 Method #1: Depleting effect of thought suppression on anagram performance
Muraven, Tice et al. (1998) Study 2
Murtagh & Todd (2004) Study 2
Effect #2 Method #2: Depleting effect of video attention task on GRE standardized test
Schmeichel, Vohs et al. (2003) Study 1
Pond et al. (2011) Study 3
Effect #2 Method #3: Depleting effect of video attention task on working memory (OSPAN)
Schmeichel (2007) Study 1
Healy et al. (2011) Study 1
Carter & McCullough (2013)
Lurquin et al. (2016)
Effect #2 Method #4: Depleting effect of emotion suppression (video) on EEG ERN during Stroop task
Inzlicht & Gutsell (2007)
Wang, Yang, & Wang (2014)
Effect #2 Method #5: Depleting effect of effortful letter crossing on multi-source interference task (MSIT; RTV)
Sripada, Kessler, & Jonides (2014)
Ringos & Carlucci (2016)
Wolff, Muzzi & Brand (2016)
Calvillo & Mills (2016)
Crowell, Finley et al. (2016)
Lynch, vanDellen et al. (2016)
Birt & Muise (2016)
Yusainy, Wimbarti et al. (2016)
Lau & Brewer (2016)
Ullrich, Primoceri et al. (2016)
Elson (2016)
Cheung, Kroese et al. (2016)
Hagger & Chatzisarantis (2016)
Schlinkert, Schrama et al. (2016)
Philipp & Cannon (2016)
Carruth & Miyake (2016)
Brandt (2016)
Stamos, Bruyneel et al. (2016)
Rentzsch, Nalis et al. (2016)
Francis & Inzlicht (2016)
Lange, Heise et al. (2016)
Evans, Fay, & Mosser (2016)
Tinghög & Koppel (2016)
Otgaar, Martijn et al. (2016)
Muller, Zerhouni et al. (2016)
Current meta-analytic estimate of Effect #2 Method #5 replications:

Summary: Replication difficulties appear to exist for ego depletion theory's 2 main predicted effects across 7 methods. Predicted effect #1: Independent researchers appear unable to replicate the finding that glucose consumption counteracts ego depletion, whether self-control is measured via Stroop (Cesario & Corker, 2010, as in Gaillot et al., 2007, Study 7) or future-discounting task (Lange & Eggert, 2014, Study 1, as in Wang & Dvorak, 2010). Predicted effect #2: There also appears to be replication difficulties for the basic ego depletion effect across 5 methods. This is the case whether IV manipulated via thought supppression, video attention task, emotion suppression during video watching, or effortful letter crossing task and also whether DV measured via anagram performance, standardized tests, working memory, or multi-source interference task. Wang et al. (2014) do appear to successfully replicate Inzlicht & Gutsell's (2007) finding that ego depletion led to reduced activity in the anterior cingulate (region previously associated with conflict monitoring), however this finding should be interpretd with caution given potential bias due to analytic flexibility in data exclusions and EEG analyses. Of course, ego depletion may reflect a replicable phenomenon under different conditions, contexts, and/or operationalizations; however, the replication difficulties across these 7 methods suggest ego depletion might be much more nuanced than previously thought. Indeed, alternative models have recently been proposed (e.g., motivation/attention-based accounts, Inzlicht et al., 2014; mental fatigue, Inzlicht & Berkman, 2015) and novel intra-individual paradigms to measure ego depletion have also emerged (Francis, 2014; Francis et al., 2015) that offer promising avenues for future research.

Replication Details

Replications 32

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