Kurt Lewin from a leader. Members are given choices and collectively decide the division of labor. Praise and criticism in such an environment are objective, fact minded and given by a group member without necessarily having participated extensively in the actual work. Laissez-faire environments give freedom to the group for policy determination without any participation from the leader. The leader remains uninvolved in work decisions unless asked, does not participate in the division of labor, and very infrequently gives praise. An early model of change developed by Lewin described change as a three-stage process. The first stage he called "unfreezing". It involved
John Adair (anthropologist) two other anthropologists published a report of the project in "The People’s Health" in 1970 and later revised the report in 1988. Adair worked with the National Institute of Mental Health (NIMH) from 1961 to 1964. At the conclusion of his work in the NIMH, he became Professor of Anthropology at San Francisco State University, where he remained until his retirement in 1978. He is also known for the 1972 book, "Through Navajo Eyes: An Exploration in Film Communication and Anthropology", which he co-authored with Sol Worth. John Adair (anthropologist) John Adair (1913 in Memphis, Tennessee – December 14, 1997