Pay-As-You-Throw in Pennsylvania

Cases
Currently, the PAYT program has been implemented in over 211 different communities in Pennsylvania. Across these municipalities, wide ranges of results have been found. The reduct…

Using Verbal and Visual Prompts to Reduce Litter in High Schools in Perth, Australia

Cases
Houghton, S. (1993). Using verbal and visual prompts to control littering in high schools. Educational Studies, 19, 3, 247-254.
Verbal and visual prompts were most effective when used in combination. On average, the number of littered items was reduced to 2.5 in the cafeteria compared to 7.3 items before …

Improving Participation in a Newspaper Recycling Program in Apartment Complexes Using Prompts

Cases
Reid, D. H., Luyben, P. D., Rawers, R. J. & Bailey, J. S. (1976). Newspaper recycling behavior: the effects of prompting and proximity of containers. Environment and Behavior, 8, 471-481.
There was an increase of over 50% in the weight of recycled paper following the implementation of prompts and proximity.

The Use of Prompts in Increasing Recycling in Academic University Departments

Cases
Austin, J., Hatfield, D. B., Grindle, A. C., & Bailey, J. S. (1993). Increasing recycling in office environments: The effects of specific, informative cues. Journal of Applied Behavior Analysis, 26, 2, 247-253.
In the first department, recycling behavior improved by 54% as compared to the baseline. In the second department, recycling by 17% when the sign prompts were four metres away an…

Using a Colourful, Specially Designed Waste Receptacle to Reduce Litter in Downtown St. Louis, Missouri

Cases
Finnie, W. C. (1973). Field experiments in litter control. Environment and Behavior, 5, 2, 123-144.
As compared to the no trash can condition, there was a 3.15% reduction in litter when standard gallons were on city blocks. Moreover, littering was reduced by 14.7% when the wast…

Using a Normative Appeal to Control Litter at a Public Swimming Pool

Cases
Reich, J. W., & Robertson, J. L. (1979). Reactance and norm appeal in anti-littering messages. Journal of Applied Social Psychology, 9, 1, 91-101.
The flyer containing the extreme message elicited the highest frequency of littering of the three handbills. The "Don't Litter" flyer was littered 50% of the time. In comparison…

The Effects of an Ambiguous, Negative Sign Prompts and a Clearly-Stated Positive Sign Prompt on Intentions to Litter

Cases
Horsley, A. D. (1988). The unintended effects of a posted sign on littering attitudes and stated intentions. Journal of Environmental Education, 19, 3, 10-14.
Thirty percent of participants responded that the "Please save our landscapes: don't litter" prompt would make them think about the litter problem. Furthermore, 20% indicated tha…

The Effects of Sign Prompts and Large Receptacles on Highway Littering in Richmond, Virginia

Cases
Finnie, W. C. (1973). Field experiments in litter control. Environment and Behavior, 5, 2, 123-144.
Overall, litter was reduced by 28.6% when trash cans were present. No statistical differences were found between the highway with sign prompts and the highway without.

Using Information and Prompts to Increase Awareness of an Environmental Product Tagging Program in Grocery Stores

Cases
Linn, N., Vining, J., & Feeley, P. A. (1994). Toward a sustainable society: Waste minimization through environmentally conscious consuming. Journal of Applied Social Psychology, 24, 17, 1550-1572.
The educational pamphlets alone did not increase awareness of the environmental program. On the other hand, 44% reported seeing the sign prompts, 34% saw signs about the product …

Increasing Paper Recycling in Portland Oregon Dormitories Using Incentives and Commitment

Cases
Wang, T. H. & Katzev, R. D. (1990). Group commitment and resource conservation: Two field experiments on promoting recycling. Journal of Applied Social Psychology, 20, 4, Part 1, 265-275.
During the intervention period, the three treatment groups showed a dramatic increase in recycling. Paper recycling for the group commitment, incentive and individual commitment …

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