Journal article
Using predicted marginal effects to assess the impact of rurality and free and reduced lunch eligibility on a school-based nutrition intervention
Evaluation and program planning, Vol.92, pp.102072-102072
06/2022
DOI: 10.1016/j.evalprogplan.2022.102072
PMID: 35339765
Abstract
To estimate the impact of a school-based nutrition education intervention in rural schools and schools with high free and reduced lunch (FRL) eligibility rates.
As part of the evaluation of the Healthy Schools Healthy Students intervention, 20 schools were randomized to control and intervention conditions. Pre (October 2017) and posttest (April 2018) data were analyzed using multi-level linear regression models to estimate the intervention effect for multiple outcomes controlling for school-level demographic characteristics. We report the predicted marginal effect overall and specifically for rural; high FRL; and rural, high-FRL schools.
We observed at least one significant intervention effect for food group knowledge, liking to eat fruit, beliefs about how healthy fruits are, non-taste test fruit preferences, liking to eat vegetables, beliefs about how healthy vegetables are, and taste test vegetable preferences. We observed differential intervention effects for all outcomes except taste test vegetable preferences based on rural and high-FRL status.
Interventions do not necessarily have the same impact on all participants. Sub-analyses can reveal these important differential effects, as they have important implications for policymakers, program implementers, and evaluators. Resources and interventions should be allocated where they will have the greatest impact.
•Predicted marginal effects were used to examine differential impact of a nutrition intervention.•Rural schools with a higher percent of students eligible for free and reduced lunch were impacted more by the intervention.•Evaluators should consider sub-analyses to examine the impact of interventions on sub-populations.
Details
- Title: Subtitle
- Using predicted marginal effects to assess the impact of rurality and free and reduced lunch eligibility on a school-based nutrition intervention
- Creators
- Natoshia M Askelson - University of Iowa College of Public Health, 145N. Riverside Drive, Iowa City, IA 52242, USAPatrick J Brady - University of IowaYoun Soo Jung - University of IowaPhuong Nguyen-Hoang - University of IowaGrace Ryan - University of IowaCarrie Scheidel - Lowa Department of Education, 400 E 14th St., Des Moines, IA, 50319Patti Delger - Lowa Department of Education, 400 E 14th St., Des Moines, IA, 50319
- Resource Type
- Journal article
- Publication Details
- Evaluation and program planning, Vol.92, pp.102072-102072
- DOI
- 10.1016/j.evalprogplan.2022.102072
- PMID
- 35339765
- NLM abbreviation
- Eval Program Plann
- ISSN
- 0149-7189
- eISSN
- 1873-7870
- Publisher
- Elsevier Ltd
- Grant note
- DOI: 10.13039/100000002, name: NIH; DOI: 10.13039/100000199, name: US Department of Agriculture
- Language
- English
- Date published
- 06/2022
- Academic Unit
- Injury Prevention Research Center; Public Policy Center (Archive); School of Planning and Public Affairs; Community and Behavioral Health
- Record Identifier
- 9984230609402771
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