AN INEXPENSIVE METHOD FOR MAKING DATA RECORDS OF COMPLEX BEHAVIORS1
Richard M. Sanders, Bill L. Hopkins, Messrs Walker · Journal of Applied Behavior Analysis · 1969
A time-lapse camera mounted in a classroom can offer a permanent record of a wide variety of simple and complex behaviors.Data such as reported by Hall, Lund, and Jackson (1968) on study behavior, or by Mad- sen, Becker, and Thomas (1968) on teacher contacts are easily detected by the method.The record is per- manent and the developed film can be displayed by a stop-action projector for as long as necessary for analysis, separately for independent observers, or later for re-analysis.The system has many advantages over other data collection systems, some of which are suggested below: