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ERIC Number: EJ940399
Record Type: Journal
Publication Date: 2011-Oct
Pages: 10
Abstractor: As Provided
Reference Count: 43
ISSN: ISSN-1090-1981
Direct and Mediated Effects of Two Theoretically Based Interventions to Increase Consumption of Fruits and Vegetables in the "Healthy Body Healthy Spirit" Trial
Shaikh, Abdul R.; Vinokur, Amiram D.; Yaroch, Amy L.; Williams, Geoffrey C.; Resnicow, Ken
Health Education & Behavior, v38 n5 p492-501 Oct 2011
This study tested the effects of two theory-based interventions to increase fruit and vegetable intake. Hypothesized intervention mediators included self-efficacy (SE), social support (SS), autonomous motivation (AM), and controlled motivation (CM). At baseline, 1,021 African American adults were recruited from 16 churches randomized to one comparison and two intervention groups: Group 1 (standard educational materials), Group 2 (culturally targeted materials), and Group 3 (culturally targeted materials and telephone-based motivational interviewing). A well-fitted model based on structural equation modeling--chi[superscript 2](df = 541, N = 353, 325) = 864.28, p less than 0.001, normed fit index = 0.96, nonnormed fit index = 0.98, comparative fit index = 0.98, root mean square error of approximation = 0.042--demonstrated that AM was both a significant mediator and moderator. In the subgroup with low baseline AM, AM mediated 17% of the effect of the Group 3 intervention on fruit and vegetable intake. Conversely, SS, SE, and CM were not significant mediators. Implications related to theory and intervention development are discussed. (Contains 2 tables and 2 figures.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A