Robert D. Gibbons|David J. Weiss|Paul A. Pilkonis|Ellen Frank|Tara L. Moore|Jong Bae Kim|David J. Kupfer
Development of the CAT-ANX: A Computerized Adaptive Test for Anxiety
objective authors developed computerized adaptive test anxiety decreases patient clinician burden increases measurement precision method total 1614 individuals without generalized anxiety disorder psychiatric clinic community mental health center recruited focus present study development computerized adaptive testinganxiety inventory catanx structured clinical interview dsmiv used obtain diagnostic classifications generalized anxiety disorder major depressive disorder results average 12 items per subject required achieve 03 standard error anxiety severity estimate maintain correlation 094 total 431item test score catanx scores strongly related probability generalized anxiety disorder diagnosis using computerized adaptive testingdepression inventory catanx comorbid major depressive disorder generalized anxiety disorder accurately predicted conclusions traditional measurement fixes number items allows measurement uncertainty vary computerized adaptive testing fixes measurement uncertainty allows number content items vary leading dramatic decrease number items required fixed level measurement uncertainty potential applications inexpensive efficient accurate screening anxiety primary care settings clinical trials psychiatric epidemiology molecular genetics children cultures discussed