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4th Grade Vegetable Core

Feb 02, 2018

Developed to address low vegetable intake levels seen in statewide needs assessment data, the Fourth Grade Vegetable Core intervention includes four lessons with food-tastings, activities, and messaging focused on improving mediators of behavior change (attitude, self-efficacy, preference, and knowledge). Lessons from existing materials were compiled and repurposed to create a standardized, classroom-based series to be delivered over a three to five week time period by local partner agencies. Lessons aligned with State academic standards.

Type of Program

Classroom based intervention for school students

Years of Implementation

Impact evaluation conducted Fall 2008 and Fall 2009. The curriculum has been on our approved education materials list FY09-current (FY16).

Number of Participants

Approximately 11,125 students participated in this intervention from School Year 2008/2009 through School Year 2014/2015.

Target Audience

The intervention was designed for fourth grade students in SNAP-Ed eligible schools.

Program Evaluation

An impact study (1) was conducted with a sample of more than 1,900 fourth grade students participating in PA SNAP-Ed in Fall 2008 and Fall 2009 with classrooms randomized into control (68 classrooms) or intervention (72 classrooms) groups. Local partners selected one classroom of fourth grade students from each school.

An evaluation tool, tested for reliability and validity and comprised of two attitude items, two self-efficacy items, a 10-item food preference scale, and five knowledge questions, was administered as a pre-test and post- test.

Food preference, attitude, and self-efficacy items developed for SNAP-Ed intervention (Cooking with Kids) in New Mexico were used with permission and modified to align with lesson content. Knowledge items were created to assess key messages from the lessons.

The evaluation tool was administered at start of the first lesson for intervention classrooms; an identical post-test was administered at end of the fourth lesson. Control classrooms completed the survey at two time points with no intervening vegetable-related SNAP-Ed intervention.

1) Wall DE, Least C, Gromis J, Lohse B: Nutrition education intervention improves vegetable-related attitude, self-efficacy, preference, and knowledge of fourth-grade students. J Sch Health; 2012 Jan;82(1):37-43.

Statistics and Program Impact

Each survey (attitude, self-efficacy, preference, knowledge) was examined separately. Pre-post score change was significantly different (p<0.001) between control and intervention groups for all surveys. The intervention resulted in a significant improvement in attitude, self-efficacy, preference and knowledge scores (p<0.001).


This article was submitted by the Pennsylvania Nutrition Education Tracks. For further information please contact Denise E. Wall, MPH, RD TRACKS Assistant Project Director. All logos are used with permission.