Patterson, Blossom H.; Kessler, Larry G.; Wax, Yohanan; … - In: Evaluation Review 16 (1992) 5, pp. 464-490
A 2-year supermarket intervention in 20 pair-matched stores tested whether a nutrition education program could produce changes in food purchasing behavior. Food sales data for 2 intervention years were compared with baseline year data. The evaluation presented challenges related to the...