Adaptive Testing Technologies is led by Professor Robert Gibbons, Blum-Riese Professor of Biostatistics at the University of Chicago and Dr. David Kupfer, former Chair of the Department of Psychiatry at the University of Pittsburgh and Chair of the DSM-5 committee for the American Psychiatric Association. Adaptive Testing Technologies ("ATT") is a leader in the design, testing and implementation of large scale adaptive testing systems for mental health assessment. ATT's rollout of the CAT-DI (Computerized Adaptive Test - Depresssion Inventory) was featured in November 2012 edition of JAMA Psychiatry (Click here for article). In addition to the CAT for depression, CATs are available for anxiety, mania/hypomania, and suicide.
Mental health measurement has been based primarily on subjective judgment and classical test theory. Typically, impairment level is determined by a total score, requiring that all respondents be administered the same items. An alternative to full scale administration is adaptive testing in which different individuals may receive different scale items that are targeted to their specific impairment level. Within adaptive testing, individuals’ initial item responses are used to determine a provisional estimate of their standing on the measured trait (e.g., depression, anxiety) to be used for subsequent item selection. This form of testing has recently emerged in mental health research (See Academic Press Tab). Based on item response theory (IRT) procedures, estimates of items (e.g., difficulty, discrimination) and individuals (e.g., severity of depression) can be obtained to more efficiently identify suitable item subsets for each individual. This approach to testing is referred to as computerized adaptive testing (CAT) and is immediately applicable to mental health measurement problems. We have developed the first adaptive depression test based on multidimensional IRT, the CAT-DI, which can be administered adaptively, such that each individual responds only to those items that are most appropriate to assessing his/her level of depression. MORE
What is CAT-MH?
"Adaptive Testing Technologies ("ATT") is a leader in the design, testing and implementation of large scale mental health adaptive testing systems."
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