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Personal Information

California School of Professional Psychology

Clinical Psychology

San Francisco Beach St Campus



Alliant International University San Francisco
One Beach Street, Suite 100
San Francisco CA 94133-1221


Courses, Research Interests, Publications

Ph.D. Doctoral Dissertation

Advanced Research Methodology in Program Evaluation

Ph.D. Research Seminar, Program Evaluation Emphasis

Substance abuse and AIDS treatment and prevention in multicultural communities; program evaluation in behavioral health systems including managed care systems including drug courts and alternative community approaches in juvenile probation; organizational systems with a focus on managed behavioral health policy evaluation, and analysis; early childhood prevention and intervention; cost analysis; studies in programs for assertive community treatment (PACT)

Academic History and Background

B.A., Psychology, San Francisco State University, San Francisco, CA.

A.A., Civil Engineering, City College of San Francisco, San Francisco, CA.

Ph.D., Clinical Psychology, University of Washington, Seattle, WA., 1981

American Psychological Association (APA)

APA Division 5, Evaluation, Measurement and Statistics

American Orthopsychiatric Association

APA Division 27, Division of Community Psychology

American Evaluators Association (AEA)

APA Division 45, Society for the Psychological Study of Ethnic Minority Issues

National Asian American & Pacific Islander Mental Health Association

National Asian Families Against Substance Abuse (NAPAFASA)

APA Division 50, Addictions

Asian American Psychological Association (AAPA)

Professional Practice and Community Service

Member, 2001 to present: Board of Directors, National Asian American Pacific Islander Mental Health Association (NAAPIMA), Denver, Co. Active member of national mental health organization dedicated to mental health issues of Asian Americans and Pacific Islanders., 2001

Member, 1999 to present: Advisory Committee, National Data Coordinating Center, Center for Substance Abuse Prevention (CSAP), Substance Abuse, Mental Health Services Administration (SAMHSA), 1999

Member, 1996 to present: Drug Control Research, Data, and Evaluation Committee (DCRDEC), Office 1996 to present of National Drug Control Policy (ONDCP), Executive Office of the President, Washington, DC., 1996

Member: Search Committee for Director, Center for Substance Abuse, Substance Abuse, Mental Health Services Administration (SAMHSA), Rockville, MD. Active member of Search committee for new Director of Center for Substance Abuse Prevention (CSAP), a federal agency of the U.S. Department of Health and Human Services., 1996-1998

Member: Epidemiology Advisory Board, Division of Mental Health and Substance Abuse Service, Department of Public Health, City and County of San Francisco, San Francisco, CA., 1995-1998

Davis Y. Ja & Associates, 1990 - present, 1990

Program Evaluations Services

Bio and Links

Ja Davis founded Davis Y. Ja & Associates, an independent consulting firm specializing in the research and evaluation of behavioral health, criminal and juvenile justice, mental health and substance abuse treatment services, eating disorders, as well as services for ethnic minorities. Since 1990, DYJ, Inc. has been providing these services to non-profit agencies and municipalities in the San Francisco Bay Area and throughout the United States, with primary emphasis on federal demonstration projects.