Watson, T. S. (1996).
A prompt plus delayed contingency procedure for reducing bathroom graffiti.
Journal of Applied Behavior Analysis,
29, 121-124.
This study assessed the effectiveness of posting signs for
reducing graffiti in three men's restrooms on a college campus
using a multiple baseline across settings design. During
baseline, graffiti increased almost daily in each of the three
settings. Immediately following the intervention, no marks were
made on any of the three walls. Results were maintained at
3-month follow-up. A possible explanation for the results is that
the signs specified an altruistic contingency.
DESCRIPTORS: community intervention, posting signs, active caring,
graffiti