Effects of a prompting procedure on coffee shop consumers' use of reusable cups

Decreasing disposable cup use in coffee shop can potentially save trees from being cut down and used to manufacture disposable cups. The current study used a group multiple baseline design across stores to evaluate a personal prompting procedure delivered to customers of three coffee shops on the use of reusable cups. Results indicate that the personal prompt had a weak effect on decreasing the use of disposable cups, resulting in a 2%-4% overall decrease in two store locations and a 15% increase in one store location. Implications of these results are discussed.