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Cited by 138Nutrition, Health and Food BehaviorBehavioral Health and InterventionsMedia Influence and Health

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A computerized social cognitive intervention for nutrition behavior: Direct and mediated effects on fat, fiber, fruits, and vegetables, self-efficacy, and outcome expectations among food shoppers

Anderson, Eileen S., Winett, Richard A., Wojcik, Janet R., Winett, Sheila G., Bowden, Todd·2001·Annals of Behavioral Medicine
DOI 10.1207/s15324796abm2302_3
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Abstract

This study examined the direct and mediated impact of a self-administered, computer-based intervention on nutrition behavior self-efficacy, and outcome expectations among supermarket food shoppers. The intervention, housed in kiosks in supermarkets and based on social cognitive theory, used tailored information and self-regulation strategies delivered in 15 brief weekly segments. The study sample (N = 277), stratified and randomly assigned to treatment or control, was 96% female, was 92% White, had a median annual income of about $35,000, and had a mean education of 14. 78 +/- 2.11 years. About 12% of the sample reported incomes of $20,000 or less, and about 20% reported 12 years or fewer of education. Analysis of covariance immediately after intervention and at a 4- to 6-month follow-up found that treatment led to improved levels of fat, fiber, and fruits and vegetables. Treatment also led to higher levels of nutrition-related self-efficacy, physical outcome expectations, and social outcome expectations. Logistic regression analysis determined that the treatment group was more likely than the control group to attain goals for fat, fiber, and fruits and vegetables at posttest and to attain goals for fat at follow-up. Latent variable structural equation analysis revealed self-efficacy and physical outcome expectations mediated treatment effects on nutrition. In addition, physical outcome expectations mediated the effect of self-efficacy on nutrition outcomes. Implications for future computer-based health promotion interventions are discussed.

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Research works printed but not linked: 5

  1. U.S. Department of Health and Human Services:Consensus Workshop on Dietary Assessment: Nutrition Monitoring and Tracking the Year 2000 Objectives. Hyattesville, MD: DHHS, Public Health Service, Centers for Disease Control and Prevention, National Centers for Health Statistics, 1994.
  2. Block Dietary Data Systems:Block 95 Food Frequency Questionnaire. Berkley, CA: Block Dietary Data Systems, 1995.
  3. Reiss AJ:Occupations and social status / Albert J. Reiss, Jr., with Otis Dudley Duncan, Paul K. Hatt, Cecil C. North. New York: Free Press of Glencoe, 1961.
  4. SPSS, Inc.: SPSS (Version 10.0) [Computer software]. Chicago: SPSS, Inc., 1999.
  5. Jöreskog KG, Sörbom D: LISREL (Version 8.30) [Computer software]. Chicago: Scientific Software International, Inc., 1999.

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Metadata

Authors
Anderson, E. S., Winett, R. A., Wojcik, J. R., Winett, S. G., & Bowden, T.
Affiliations
Virginia Tech (US)
Corresponding author
Anderson, Eileen S.
ORCID
Wojcik, Janet R.
Venue
Annals of Behavioral Medicine
Publisher
Oxford University Press (OUP)
Published
2001-05
Volume
23
Issue
2
Pages
88-100
ISSN
  • 0742-5554 (ISSN-L)
  • 0883-6612
  • 1532-4796
DOI
10.1207/s15324796abm2302_3
OpenAlex
W1975877546
Cited by
138
References
50
Citations by year
2026: 1 · 2025: 1 · 2024: 4 · 2023: 4 · 2022: 6 · 2021: 12 · 2019: 8 · 2018: 3 · 2017: 2 · 2016: 6 · 2015: 8 · 2014: 6 · 2013: 7 · 2012: 7
FWCI
2.35
Type
journal article
Language
en
Open access
closed
Locations
  • Annals of Behavioral Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Virginia Polytechnic Institute and State University
  • National Institutes of Health (5r01ca045926-07)
  • National Cancer Institute (2RO1CA45926-06A1)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Nutrition, Health and Food Behavior
  • Social Sciences › Psychology › Applied Psychology › Behavioral Health and Interventions
  • Social Sciences › Communication › Media Influence and Health
Keywords
social cognitive theory, nutrition behavior, self-efficacy, outcome expectations, dietary fat intake, dietary fiber, fruit and vegetable intake, self-regulation, personalized health information, indirect effects
MeSH terms
Adult, Analysis of Variance, Computer-Assisted Instruction, Dietary Fats, Dietary Fiber, Factor Analysis, Statistical, Feeding Behavior, Female, Fruit, Goals, Health Education, Humans, Male, Models, Psychological, Motivation, Socioeconomic Factors, Vegetables, Logistic Models, Self Efficacy

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