One criticism of professionals in public service is that they resist changing the occupational norms that would decrease their power even though it would benefit their clients. In an examination of the relationship between professionalism and change, data were collected from elementary school principals, local school board members, and lay members of community health planning. Principals were slightly less inclined than school board members to accept change. The least professional of the three groups, community health members, were the most negative about change. The mixed findings may result partially from the spurious relationship between professionalism and change. Two additional variables were introduced to test this hypothesis: amount of "turbulence" or dissatisfaction among clients and diversity of viewpoints within groups. Controlling for the former variable yielded little difference; however, there was a strong positive relationship between diversity of viewpoints and change. Consequently, group consensus is seen as a major variable in predicting acceptance of change. (Author)