Beginning in the 1970s, the ethnic profile of the United States began to change dramatically with the number of ethnic persons increasing and the population of this country becoming more diversified (O'Hare, 1992). This trend has continued unabated into the 1990s and into the 2000s (DeVita, 1996; American Psychological Association, 2003). During the 1980s, the delivery of health services also began to change and has continued to do so into the 1990s with the implementation of managed health care. The reorganization of the delivery of mental health services soon followed that of health services and is still in the process of evolving. Both of these trends will have a dramatic impact on the treatment of ethnic clients throughout the twentyfirst century.