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Practical Issues in Large-Scale High-Stakes Computerized Adaptive Testing CAT

Mills, Craig N.; Stocking, Martha L.
Publication Year:
Report Number:
ETS Research Report
Document Type:
Page Count:
Subject/Key Words:
Adaptive Testing, Computer Assisted Testing, Test Administration, Test Construction, Testing Programs


Computerized adaptive testing (CAT), while well- grounded in psychometric theory, has had few large- scale applications for high-stakes, secure tests in the past. This is now changing as the cost of computing has declined rapidly. As is always true at such junctures where theory is translated into practice, many practical issues arise that must now be addressed. This paper discusses a number of such issues and sketches out potential problems and potential solutions. Our purpose is to encourage further development of solutions to the issues presented as well as other practical issues facing measurement professionals involved with the implementation of adaptive testing. (30pp.)

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