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Clinical Trial
. 1991;10(1):75-8.
doi: 10.1037//0278-6133.10.1.75.

An experimental evaluation of a prototype public access nutrition information system for supermarkets

R A Winett  1 , J L Wagner, J F Moore, W B Walker, L A Hite, M Leahy, T Neubauer, D Arbour, J Walberg, E S Geller, et al.
Affiliations
Clinical Trial

An experimental evaluation of a prototype public access nutrition information system for supermarkets

R A Winett et al. Health Psychol. 1991.

Abstract

Located the Nutrition for a Lifetime System (NLS-1), a prototype interactive information system, in a large supermarket to help users decrease high-fat food purchases and increase high-fiber food purchases. Study participants were randomly assigned to control (n = 23; used the NLS-1 to enter food purchases only) or experimental (n = 26; viewed videodisc instructional programs, received prompts, made commitments, received feedback from the NLS-1) conditions. According to data entered in the NLS-1 and actual food shopping receipts, experimental participants significantly reduced higher fat purchases. Increases in higher fiber purchases favored the experimental group but were not significant.

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