[The Hawthorne studies was] perhaps the first major social science experiment... and we feel that continued efforts in this direction will yield rich… - William Foote Whyte

They [social workers] were always calling police stations telling them. 'There is a riot in the Northon street settlement. Send the riot squad right away.' A couple of cops would come down and joke with the boys [Native Whites], because they were good friends.

In addition to interviewing and participating, we spent a good deal of time in observing the interaction of the various people who make up the restaurant organization. For example, we observed waitresses getting their food from service-pantry girls and picking up drinks from bartenders, and we stood with the checker while she checked the waiters’ orders as they left one kitchen we were studying.

One may generalize upon these processes in terms of group equilibrium. The group may be said to be in equilibrium when the interactions of its members fall into the customary pattern through which group activities are and have been organized. The pattern of interactions may undergo certain modifications without upsetting the group equilibrium, but abrupt and drastic changes destroy the equilibrium.