Situation dynamics and the theory of behavior systems

Is it possible to identify and to quantify variables in terms of which the behavior of an individual as a member of a group, such as a child in his family, can be described? Here a set of such variables is proposed together with ways of measuring them. The variables have to do with degrees of activity, of emotional content, and of external pressures involved in various forms of behavior. Further, a set of functional relations is postulated among these variables. From these further quantitative relations are derived, which are put to experimental test. In general, some interesting corroborations of the model are obtained.