Four supermarkets in the Maryland and Virginia suburbs of Washington, D.C. provided the setting to pilot test a public access, touchscreen computer system for nutrition education. All supermarkets were located in strip malls and open 24 hours a day. Three stores were located in residential communities and one in a business district. Shoppers in three of the stores were generally college educated and middle to high income. The majority of shoppers were white in three of the stores, while in one store, they were of diverse ethnic backgrounds. The system was marketed to surrounding communities through media press releases and presentations to local organizations. In the stores, cooperation from supermarket managers was passive: they provided floor space, but did not permit promotion of the system with in-store signage, nor did they incorporate the system into their own store advertisements. Research assistants tended the system three to five hours per day, five days per week, encouraging shoppers to use the system. Help cards were attached to the kiosk, but no orientation class was needed. The screens were self-explanatory, and users proceeded by touching appropriate icons (buttons).
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