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. CAST is a term introduced by psychometricians working for the National Board of Medical Examiners. In CAST, the testlets are referred to as panels.
References
Luecht, R.M. (2005). "Some useful cost-benefit criteria for evaluating computer-based test delivery models and systems" (PDF). Journal of Applied Testing Technology. 7 (2). Archived from the original (PDF) on 2006-09-27. Retrieved 2006-12-01. https://web.archive.org/web/20060927064953/http://www.testpublishers.org/Documents/JATT2005_rev_Criteria4CBT_RMLuecht_Apr2005.pdf ↩
Luecht, R. M.; Nungester, R. J. (1998). "Some practical examples of computer-adaptive sequential testing". Journal of Educational Measurement. 35: 229–249. doi:10.1111/j.1745-3984.1998.tb00537.x. /wiki/Doi_(identifier) ↩