SIGMA Assessment Systems has been creating respected assessments since 1967. We have a long list of satisfied clients in both the public and private sector, including NASA, Intel, DaimlerChrysler, Lucent Technologies, Towers Perrin, Nokia, AT&T, and Duke Energy, to name a few. Consultants find our products to be valuable complements to their service.
SIGMA is a founding member of the Association of Test Publishers, and has been providing products and services to human resource professionals, counselors, and psychologists for over 40 years. SIGMA publishes a variety of psychological instruments, including measures of ability, personality, and career interest.
||As a founding member of the Association of Test Publishers, SIGMA is committed to protecting your privacy and the confidentiality of your assessment data.|
SIGMA Assessment Systems' founder, Douglas N. Jackson, Ph.D., was a world authority in human assessment. Over the course of his long and prolific career, he published over 200 articles in refereed journals, several dozen book chapters, and held the position of Chair of the American Psychological Association's Committee on Psychological Tests and Assessments. He also served as President of the Society for Multivariate Experimental Psychology and as President of APA's Division of Measurement, Evaluation and Statistics. In 2004 he was awarded the "Samuel J. Messick Award" for Distinguished Scientific Contributions by the APA Division 5 (Evaluation, Measurement, and Statistics).
Dr. Jackson was one of the few American citizens who have been elected Fellow of the Royal Society of Canada. Many of Dr. Jackson's doctoral students have gone forth to make important contributions in the psychology field. Over 3 million people have taken assessments authored by Dr. Jackson.
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SIGMA Assessment Systems
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