Reliable and Highly Valid Cognitive Assessment
Cognistat is utilized worldwide by health professionals who depend on a quick, reliable, and widely accepted method for cognitive testing.
This testing instrument is used globally by psychologists, physicians, nurses, and other health-related professionals for whom Cognistat provides information essential to their evaluation and care.
Developed by Ralph J. Kiernan, PhD; Jonathan Mueller, MD; and J. William Langston, MD, Cognistat has been found to provide highly valid cognitive assessment in a broad range of medical and psychiatric conditions.
Cognistat is available in two convenient formats:
- Original paper test
- NEW web-based assessment system
![]() Original paper test Buy online now! |
![]() NEW web-based assessment system Buy online now! |




In a recent survey, Rabin, Barr and Burton found that Cognistat was among the 20 most widely used test instruments employed by neuropsychologists in the United States and Canada.



