Jefferson County Department of Health, Birmingham, Alabama.
J Appl Behav Anal. 1972 Summer;5(2):199-202. doi: 10.1901/jaba.1972.5-199.
There is a need for a portable means of signalling appropriate classroom behavior that the teacher can carry with her as she moves about the room. An inexpensive wireless switch, adapted for classroom use, was used to turn on a clock when all children were attending to their work. When a movie was made contingent on accumulating a specific number of minutes on the clock, class-attending increased. Throughout these conditions, the records of class attending made by an independent observer with a stopwatch correlated highly with the remote controlled clock.
需要有一种便携的信号装置来指示适当的课堂行为，以便教师在教室中走动时随身携带。一种为课堂使用而改装的廉价无线开关被用来在所有孩子都在专心做作业时打开时钟。当电影的播放取决于在时钟上累计特定的分钟数时，出勤率就会提高。在这些条件下，使用秒表的独立观察员记录的出勤情况与远程控制的时钟高度相关。
