Can personality bridge the intention-behavior gap to predict who will exercise?

Carolyn MacCann, Jemma Todd, Barbara Mullan, Richard D Roberts

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Objectives: To explore whether HEXACO personality domains could incrementally increase the prediction of exercise behavior above Theory of Planned Behavior (TPB) variables, and whether personality moderated the intention-behavior gap. Methods: US College students (N = 1017) completed demographic, TPB, HEXACO domain and exercise behavior measures. Results: The TPB predicted physical activity, accounting for 45% and 39% of variance in intention and behavior, respectively. Regarding personality domains, lower emotionality significantly predicted intention, and lower honesty-humility significantly predicted behavior, but these were small effects. Personality did not moderate the intention-behavior gap. Conclusions: Personality has a limited direct role in predicting exercise intention and behavior beyond the TPB. The prediction of exercise behavior from honesty-humility highlights the importance of considering the HEXACO personality model.
Original languageEnglish
Pages (from-to)140-147
Number of pages8
JournalAmerican Journal of Health Behavior
Issue number1
Publication statusPublished - 1 Jan 2015
Externally publishedYes


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