Social-cognitive predictors of health behavior: action self-efficacy and coping self-efficacy

Health Psychol. 2000 Sep;19(5):487-95.


The effects of social-cognitive variables on preventive nutrition and behavioral intentions were studied in 580 adults at 2 points in time. The authors hypothesized that optimistic self-beliefs operate in 2 phases and made a distinction between action self-efficacy (preintention) and coping self-efficacy (postintention). Risk perceptions, outcome expectancies, and action self-efficacy were specified as predictors of the intention at Wave 1. Behavioral intention and coping self-efficacy served as mediators linking the 3 predictors with low-fat and high-fiber dietary intake 6 months later at Wave 2. Covariance structure analysis yielded a good model fit for the total sample and 6 subsamples created by a median split of 3 moderators: gender, age, and body weight. Parameter estimates differed between samples; the importance of perceived self-efficacy increased with age and weight.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adaptation, Psychological*
  • Adult
  • Aged
  • Body Weight
  • Diet
  • Dietary Fats
  • Dietary Fiber
  • Female
  • Health Behavior*
  • Humans
  • Longitudinal Studies
  • Male
  • Middle Aged
  • Models, Psychological
  • Nutritional Physiological Phenomena*
  • Self Efficacy*


  • Dietary Fats
  • Dietary Fiber