Take the situation of a scientist solving a problem, where he has certain data, which call for certain responses. Some of this set of data call for his applying such and such a law, while others call for another law.

1934. For instance he first plays the role of policeman and then the role of thief while playing "Cops and Robbers" and plays the role of doctor and patient when playing "Doctor. J.

He is regarded as one of the founders of social psychology and the American sociological tradition in general.