Reliability of a Retail Food Store Survey and Development of an Accompanying Retail Scoring System to Communicate Survey Findings and Identify Vendors for Healthful Food and Marketing Initiatives

Publication year: 2011
Source: Journal of Nutrition Education and Behavior, Volume 43, Issue 4, Supplement 2, July-August 2011, Pages S104-S112

Alyssa, Ghirardelli , Valerie, Quinn , Sharon, Sugerman

 Objective: To develop a retail grocery instrument with weighted scoring to be used as an indicator of the food environment. Participants/Setting: Twenty six retail food stores in low-income areas in California. Intervention: Observational. Main Outcome Measure(s): Inter-rater reliability for grocery store survey instrument. Description of store scoring methodology weighted to emphasize availability of healthful food. Analysis: Type A intra-class correlation coefficients (ICC) with absolute agreement definition or a κ test for measures using ranges as categories. Results: Measures of availability and price of fruits and vegetables performed well in reliability testing (κ = 0.681-0.800). Items for vegetable quality were better than for fruit (ICC 0.708 vs 0.528). Kappa scores indicated low to…