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Published on: September 18, 2018
Varying the message source in computer-tailored nutrition education.
M K Campbell1, J M Bernhardt, M Waldmiller
1Department of Nutrition, Campus Box 7400, University of North Carolina, Chapel Hill, NC 27599, USA.
Computer-tailored health bulletins increased fruit and vegetable intake in African American church members. A spiritual message source enhanced message trust more than an expert source.
Area of Science:
- Public Health
- Health Communication
- Behavioral Science
Background:
- Message source influences health behavior change interventions.
- Tailored health messages may improve intervention effectiveness.
- Rural African American communities face unique health challenges.
Purpose of the Study:
- To examine the impact of message source on recall and credibility.
- To compare expert-oriented versus spiritual/pastor-oriented tailored bulletins.
- To assess effects on fruit and vegetable consumption in rural African Americans.
Main Methods:
- Randomized study comparing expert (EXP) and spiritual (SPIR) tailored bulletins.
- Control group received no tailored bulletin.
- Identical tailoring variables used for both bulletin types.
Main Results:
- Both bulletin groups showed higher message recall than the control.
- SPIR group reported higher message trust (P < 0.05).
- EXP group trusted scientific sources; SPIR group trusted pastor (P < 0.05).
Conclusions:
- Tailored bulletins increased fruit and vegetable consumption compared to control.
- Spiritual message source enhanced message trust among participants.
- Intervention was part of a multi-component program, limiting sole attribution.
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