This is a three-item, five-point scale apparently measuring a shopper's attitude about the product quality associated with a specified store, especially with regard to meat and produce. In the study by Kerin, Jain, and Howard (1992), the scale was used with reference to a shopper's most frequently patronized grocery store.
As a researcher, it's important to use validated scales to ensure reliability and improve interpretation of research results. The Marketing Scales database provides an easy, unified source to find and reference scales, including information on reliability and validity.