This study evaluates the effectiveness of an incentive procedure designed to induce litter collection in a large forest campground. Children in the campground were offered their choice of a variety of reinforcers for picking up and properly disposing of litter. The procedure resulted in a sharp decline in four types of litter planted in the campground.
No takes yet. Share an insight, caveat, or question.
Clark et al. (1972) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: