Best practices for using natural experiments to evaluate retail food and beverage policies and interventions
| Autor: | Anna H. Grummon, Diana S. Grigsby-Toussaint, Lucia A. Leone, Sheila Fleischhacker, Lindsey Smith Taillie, Caitlin E. Caspi |
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| Rok vydání: | 2017 |
| Předmět: |
Databases
Factual Impact evaluation Best practice Health Behavior Population Psychological intervention Medicine (miscellaneous) Nutrition Policy law.invention Beverages External validity 03 medical and health sciences 0302 clinical medicine Randomized controlled trial law Humans 030212 general & internal medicine Food science Excise Marketing education Randomized Controlled Trials as Topic education.field_of_study 030505 public health Nutrition and Dietetics food and beverages Taxes Lead Article Variety (cybernetics) Food Research Design Business Diet Healthy 0305 other medical science |
| Zdroj: | Nutrition Reviews. 75:971-989 |
| ISSN: | 1753-4887 0029-6643 |
| DOI: | 10.1093/nutrit/nux051 |
| Popis: | Policy and programmatic change in the food retail setting, including excise taxes on beverages with added-caloric sweeteners, new supermarkets in food deserts, and voluntary corporate pledges, often require the use of natural experimental evaluation for impact evaluation when randomized controlled trials are not possible. Although natural experimental studies in the food retail setting provide important opportunities to test how nonrandomized interventions affect behavioral and health outcomes, researchers face several key challenges to maintaining strong internal and external validity when conducting these studies. Broadly, these challenges include 1) study design and analysis; 2) selection of participants, selection of measures, and obtainment of data; and 3) real-world considerations. This article addresses these challenges and different approaches to meeting them. Case studies are used to illustrate these approaches and to highlight advantages and disadvantages of each approach. If the trade-offs required to address these challenges are carefully considered, thoughtful natural experimental evaluations can minimize bias and provide critical information about the impacts of food retail interventions to a variety of stakeholders, including the affected population, policymakers, and food retailers. |
| Databáze: | OpenAIRE |
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