%0 Journal Article %J Journal of Applied Measurement %D 2003 %T An examination of exposure control and content balancing restrictions on item selection in CATs using the partial credit model %A Davis, L. L. %A Pastor, D. A. %A Dodd, B. G. %A Chiang, C. %A Fitzpatrick, S. J. %K *Computers %K *Educational Measurement %K *Models, Theoretical %K Automation %K Decision Making %K Humans %K Reproducibility of Results %X The purpose of the present investigation was to systematically examine the effectiveness of the Sympson-Hetter technique and rotated content balancing relative to no exposure control and no content rotation conditions in a computerized adaptive testing system (CAT) based on the partial credit model. A series of simulated fixed and variable length CATs were run using two data sets generated to multiple content areas for three sizes of item pools. The 2 (exposure control) X 2 (content rotation) X 2 (test length) X 3 (item pool size) X 2 (data sets) yielded a total of 48 conditions. Results show that while both procedures can be used with no deleterious effect on measurement precision, the gains in exposure control, pool utilization, and item overlap appear quite modest. Difficulties involved with setting the exposure control parameters in small item pools make questionable the utility of the Sympson-Hetter technique with similar item pools. %B Journal of Applied Measurement %V 4 %P 24-42 %G eng %M 12700429 %0 Conference Paper %B Paper presented at the annual meeting of the American Educational Research Association %D 2000 %T An examination of exposure control and content balancing restrictions on item selection in CATs using the partial credit model %A Davis, L. L. %A Pastor, D. A. %A Dodd, B. G. %A Chiang, C. %A Fitzpatrick, S. %B Paper presented at the annual meeting of the American Educational Research Association %C New Orleans, LA %G eng %0 Conference Paper %B Paper presented at the annual meeting of American Educational Research Association %D 1999 %T Performance of the Sympson-Hetter exposure control algorithm with a polytomous item bank %A Pastor, D. A. %A Chiang, C. %A Dodd, B. G. %A Yockey, R. and %B Paper presented at the annual meeting of American Educational Research Association %C Montreal, Canada %G eng