Positive Reinforcement of Litter Removal in the Natural Environment
Journal of Applied Behavior Analysis
Investigated procedures to induce visitors to remove litter from an unsupervised US Forest Service area in which signs attached to 2 litter stations instructed people to pick up and deposit litter. A small sum of money or chances on a larger sum given for participation usually resulted in more bags of litter being picked up per week. Although only a small part of the area's users participated in the project, ground surveys indicated the areas sampled were somewhat freer of litter during the payment condition. Results suggest that small monetary rewards may be a promising approach to litter control in unsupervised as well as supervised areas.
Osborne, J. Grayson. and Anderson, Emmett G. 1973. Positive Reinforcement of Litter Removal in the Natural Environment. Journal of Applied Behavior Analysis 6(4): 579-586.