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Ego depletion--is it all in your head? implicit theories about willpower affect self-regulation.

Published on Nov 1, 2010in Psychological Science4.902
· DOI :10.1177/0956797610384745
Veronika Job15
Estimated H-index: 15
(Stanford University),
Carol S. Dweck80
Estimated H-index: 80
(Stanford University),
Gregory M. Walton30
Estimated H-index: 30
(Stanford University)
Sources
Abstract
Much recent research suggests that willpower—the capacity to exert self-control—is a limited resource that is depleted after exertion. We propose that whether depletion takes place or not depends on a person’s belief about whether willpower is a limited resource. Study 1 found that individual differences in lay theories about willpower moderate ego-depletion effects: People who viewed the capacity for self-control as not limited did not show diminished self-control after a depleting experience. Study 2 replicated the effect, manipulating lay theories about willpower. Study 3 addressed questions about the mechanism underlying the effect. Study 4, a longitudinal field study, found that theories about willpower predict change in eating behavior, procrastination, and self-regulated goal striving in depleting circumstances. Taken together, the findings suggest that reduced self-control after a depleting task or during demanding periods may reflect people’s beliefs about the availability of willpower rather than true resource depletion.
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