HZ Assessments

The HZ Assessments Team

Dr. Norman R. Hertz

Dr. Norman Hertz is a licensed psychologist with more than 20 years of experience in the measurement field. He is currently the managing partner of HZ Assessments, a private psychometric consulting firm that he co-founded after his retirement from the California Department of Consumer Affairs in 2001. He has provided psychometric expertise to national and international organizations and has developed licensing and certification examinations for several western states including California, Washington, Oregon, and Arizona.

He has extensive experience in private industry and government settings and has conducted validation studies, developed licensing and certification examinations, and established cut scores for more than 80 professions, ranging from the construction trades to medical specialties. He specializes in conducting psychometric audits of examination programs.

He has chaired and presented at the annual meetings of Council on Licensure, Enforcement and Regulation and the National Council on Measurement in Education and has also co-authored several technical papers and journal articles. He is a member of the American Psychological Association, the Society for Industrial Organizational Psychology, the American Educational Research Association, the National Council on Measurement in Education, and the Council on Licensure, Enforcement and Regulation.

Dr. Hertz has a B.A. from Baylor University in psychology, and an M.S. in psychology and Ph.D. in industrial-organizational psychology from the University of Memphis.

Dr. Roberta N. Chinn
Dr. Roberta Chinn has more than 13 years of experience in the measurement field. She is currently the general partner of HZ Assessments, a private psychometric consulting firm that she co-founded in 2001. She has developed licensing and certification examinations for several western states including California, Washington, Oregon, and Arizona.

She has extensive experience in government settings and has conducted validation studies, developed licensing and certification examinations, and established cut scores for more than 40 professions, including dental auxiliaries, engineers, engineering geologists, fiduciaries, hydrogeologists, marriage and family therapists, psychologists, social workers, speech-language pathologists, and veterinarians. She specializes in the development of multiple-choice, performance and oral examinations and has developed innovative methods to streamline procedures for practice analyses and test development.

She has chaired and presented at the annual meetings of Council on Licensure, Enforcement and Regulation and the National Council on Measurement in Education and has also co-authored several technical papers and journal articles. She is a member of the American Psychological Association, the American Educational Research Association, the National Council on Measurement in Education, and the Council on Licensure, Enforcement and Regulation.

Dr. Chinn has a B.S. from the University of California at Davis in psychology, an M.A. from the University of the Pacific in experimental psychology, and a Ph.D. in experimental psychology from Louisiana State University.