The Collapse of Ego Depletion

Michael Inzlicht at Speak Now, Regret Later:

In the winter of 2015, I stood before the largest gathering of social psychologists in the world to accept one of the field’s highest honours. My collaborators and I were being celebrated for our theory about willpower—a theory I’d spent many years refining. For a kid who grew up with empty bookshelves, this should have been a moment of triumph [1].

Instead, I felt like a fraud.

At that same conference, I had to confront an uncomfortable truth: the foundation of our celebrated paper was crumbling. Ego depletion—the once-famous idea that self-control relies on a finite resource that can be depleted through use—wasn’t real. That award? It was like winning a Nobel prize for developing the frontal lobotomy as a treatment for mental illness; and, yes, that really happened.

This isn’t just another story about failed replications or p-hacking (though those shenanigans will make an appearance). It’s a story about what happens when we fall in love with our theories more than the truth. The replication crisis didn’t just shake the foundations of psychology; it shook those of us who had built our careers on ideas that no longer held up to scrutiny.

More here.

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