The Impact of Computer-Tailored Feedback and Iterative Feedback on Fat, Fruit, and Vegetable Intake

A randomized thai was conducted to study the impact of individualized computer-generated nutrition information and additional effects of iterative feedback on changes in intake of fat, fruits, and vegetables. Respondents in the experimental group received computer-generated feedback letters tailored...

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Bibliographic Details
Published in:Health education & behavior 1998-08, Vol.25 (4), p.517-531
Main Authors: Brug, Johannes, Glanz, Karen, Van Assema, Patricia, Kok, Gerjo, van Breukelen, Gerard J. P.
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Computers
Control Groups
Dietary Fats - administration & dosage
Dietetics
Feedback
Feeding Behavior - psychology
Female
Fruit
General populations
Health education
Health Knowledge, Attitudes, Practice
Humans
Male
Medical sciences
Middle Aged
Netherlands
Nutrition
Nutrition Instruction
Nutritional Requirements
Nutritional Sciences - education
Prevention and actions
Public health. Hygiene
Public health. Hygiene-occupational medicine
Self Efficacy
Software
Surveys and Questionnaires
Vegetables
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Summary:A randomized thai was conducted to study the impact of individualized computer-generated nutrition information and additional effects of iterative feedback on changes in intake of fat, fruits, and vegetables. Respondents in the experimental group received computer-generated feedback letters tailored to their dietary intake, intentions, attitudes, self-efficacy expectations, and self-rated behavior. After the first feedback letter, half of the experimental group received additional iterative feedback tailored to changes in behavior and intentions. The control group received a single general nutrition information letter in a format similar to the tailored letters. Computer-tailored feedback had a significantly greater impact on fat reduction and fruit and vegetable intake than did general information. Iterative computer-tailored feedback had an additional impact on fat intake. The results confirm that computer-generated individualized feedback can be effective in inducing recommended dietary changes and that iterative feedback can increase the longer term impact of computertailored nutrition education on fat reduction.
ISSN:1090-1981
1552-6127
DOI:10.1177/109019819802500409