Cited by 2,253Grit, Self-Efficacy, and MotivationEducation, Achievement, and GiftednessBehavioral Health and Interventions

Self-discipline outdoes IQ in predicting academic performance of adolescents.

Duckworth, Angela L., Seligman, Martin E.P.·2005·Psychological Science

Abstract

In a longitudinal study of 140 eighth-grade students, self-discipline measured by self-report, parent report, teacher report, and monetary choice questionnaires in the fall predicted final grades, school attendance, standardized achievement-test scores, and selection into a competitive high school program the following spring. In a replication with 164 eighth graders, a behavioral delay-of-gratification task, a questionnaire on study habits, and a group-administered IQ test were added. Self-discipline measured in the fall accounted for more than twice as much variance as IQ in final grades, high school selection, school attendance, hours spent doing homework, hours spent watching television (inversely), and the time of day students began their homework. The effect of self-discipline on final grades held even when controlling for first-marking-period grades, achievement-test scores, and measured IQ. These findings suggest a major reason for students falling short of their intellectual potential: their failure to exercise self-discipline.

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Crossref · 10.1111/j.1467-9280.2005.01641.x

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Authors
Duckworth, A. L., & Seligman, M. E. P.
Affiliations
University of Pennsylvania (US)
Corresponding author
Duckworth, Angela L.
Venue
Psychological Science
Published
2005-12
Volume
16
Issue
12
Pages
939-944
ISSN
  • 0956-7976 (ISSN-L)
  • 1467-9280
OpenAlex
W2152831629
Cited by
2,253
References
16
Citations by year
2026: 80 · 2025: 108 · 2024: 108 · 2023: 106 · 2022: 119 · 2021: 126 · 2020: 183 · 2019: 182 · 2018: 139 · 2017: 165 · 2016: 172 · 2015: 147 · 2014: 139 · 2013: 116 · 2012: 106
FWCI
31.23
Type
journal article
Language
en
Open access
closed
Locations
  • Psychological Science (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r01mh063430-05)
  • National Institute of Mental Health (MH 63430, MH-52270, R01MH052270)
Topics
  • Social Sciences › Psychology › Social Psychology › Grit, Self-Efficacy, and Motivation
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Education, Achievement, and Giftedness
  • Social Sciences › Psychology › Applied Psychology › Behavioral Health and Interventions
Keywords
self-control, academic performance, adolescents, eighth grade students, IQ, delay of gratification, study habits, homework, school attendance, high school selection, achievement test scores, self-report, parent and teacher ratings, television viewing
MeSH terms
Achievement, Adolescent, Female, Humans, Intelligence, Male, Surveys and Questionnaires, Self Efficacy

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