O'Neill G W, Blanck L S, Joyner M A
J Appl Behav Anal. 1980 Summer;13(2):379-81. doi: 10.1901/jaba.1980.13-379.
A conventional litter receptacle (55-gallon drum) and a specially designated receptacle consisting of a 55-gallon drum adorned with a plywood "har" were alternated in two areas of a football stadium over a period of four games. A frequency count of several types of litter articles showed that more than twice as many items were deposited within the experimental container than the conventional one (an average of 52.5 and 21.5 items per game, respectively). The weight of litter deposited within each container showed a similar relationship. An average of 0.65 kg of litter per game were deposited within the conventional receptacle compared with an average of 1.3 kg per game for the experimental receptacle.
在一个橄榄球场的两个区域，在四场比赛期间交替使用一个传统垃圾容器（55加仑桶）和一个特别指定的容器，该特别指定的容器是一个装饰有胶合板“har”的55加仑桶。对几种垃圾物品的频率计数显示，放置在实验容器内的物品数量是传统容器内的两倍多（每场比赛平均分别为52.5件和21.5件）。每个容器内所放置垃圾的重量也呈现出类似的关系。传统容器每场比赛平均放置0.65千克垃圾，而实验容器每场比赛平均放置1.3千克垃圾。
