Authors
Kendra Marstall, Gabrielli T De Mello, Allyson Schaefers, Cassandra M Beattie, Alisha George, Alice Kirk, Alexandra L MacMillan Uribe, Michelle Smith, Julie Gardner, Jacob Szeszulski
Published in
Journal of nutrition education and behavior. Oct 19, 2026. Epub Oct 19, 2026.
Abstract
Evaluate 2 new curricula-MyPlate Influencer and MyPlate Educator-and related intervention components (e.g., text messages, implementation support).
A non-randomized two-arm design is used to evaluate (single-arm pretest to posttest changes) and compare (Influencer vs Educator) curricula. An embedded sequential multiple assignment randomized trial is used to evaluate MyPlate text message education and implementation support.
Texas, USA PARTICIPANTS: Ambassadors (n = 100) at public high schools or home schools will be recruited online and in person.
MyPlate Influencers implement a nutrition-focused environmental change project in their schools (e.g., taste-testing recipes, enhancing local wellness policies, and hosting agriculture events). MyPlate Educators provide peer-to-peer education to younger students. All ambassadors receive MyPlate goal-setting education. MyPlate text message education (tailored vs general) and implementation support (peer and educator vs educator notification) will be randomized (1:1 ratio).
Primary outcomes-diet quality and positive youth development-will be assessed using pretest and posttest surveys. Other outcomes include dermal carotenoids and MyPlate knowledge (posttest only), monthly goal reports, and process evaluation measures (e.g., event tracking and interviews).
Single-group pre- to post-intervention changes (paired sample t tests), and between-group differences and embedded randomized components (general linear models) will be evaluated.
PMID:
42895491
Bibliographic data and abstract were imported from PubMed on 19 Oct 2026.
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