Computer-adaptive sequential testing

Computer-adaptive sequential testing (CAST) is another term for multistage testing. A CAST test is a type of computer-adaptive test or computerized classification test that uses pre-defined groups of items called testlets rather than operating at the level of individual items.{{cite journal|last=Luecht|first=R.M.|year=2005|title=Some useful cost-benefit criteria for evaluating computer-based test delivery models and systems|journal=Journal of Applied Testing Technology|volume=7|issue=2|url=http://www.testpublishers.org/Documents/JATT2005_rev_Criteria4CBT_RMLuecht_Apr2005.pdf |accessdate=2006-12-01 |url-status=dead |archiveurl=https://web.archive.org/web/20060927064953/http://www.testpublishers.org/Documents/JATT2005_rev_Criteria4CBT_RMLuecht_Apr2005.pdf |archivedate=2006-09-27 }} CAST is a term introduced by psychometricians working for the National Board of Medical Examiners.{{cite journal|last1=Luecht|first1=R. M.|last2=Nungester|first2=R. J.|year=1998|title=Some practical examples of computer-adaptive sequential testing|journal=Journal of Educational Measurement|volume=35|pages=229–249|doi=10.1111/j.1745-3984.1998.tb00537.x}} In CAST, the testlets are referred to as panels.