Health Education Research, Vol. 14, No. 2, 249-256,
April 1999
© 1999 Oxford University Press
Computer-tailored nutrition education: differences between two interventions
Department of Social Sciences, Netherlands Open University, PO Box 2960, 6401 DL Heerlen, The Netherlands,
1 Department of Health Education and Health Promotion, University of Limburg, PO Box 616, 6200 MD Maastricht,
2 The Netherlands and
3 Cancer Research Center of Hawaii, University of Hawaii, Honolulu, HI 96813, USA
The impact of two computer-tailored nutrition education interventions was assessed and compared in a randomized trial among 315 subjects with a pre-test–post-test comparison group design. Respondents in both the experimental and the comparison group received feedback tailored to their consumption of fat, fruit and vegetables. Respondents in the experimental group received additional psychosocial feedback tailored to their attitudes, perceived social support and self-efficacy expectations towards reducing their fat consumption and increasing their consumption of fruit and vegetables. A significant reduction in fat consumption and increase in the consumption of fruit and vegetables were found in both the experimental and the comparison group between pre-test and post-test. Respondents in the experimental group more often indicated that the feedback they received was interesting and easy to understand. Respondents in the comparison group more often reported having reduced their fat consumption because of the feedback they received. No significant differences in consumption of fat, fruit and vegetables were found at post-test between the experimental group and the comparison group. These results do not support the hypothesis that additional psychosocial information is an essential component of effective tailored feedback. The results indicate that tailored feedback might be effective in inducing dietary changes.
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