A Comparative Study of Item Analysis by Item Response Theory Based for Initiating CAT(Computer Adaptive Test) System
이창규, 이승관, 조경진, Eunil Lee, 이숙자, Eun Sook Park, Young Joo Park · Journal of Clinical Laboratory Science · 2000
Prior to CAT, the parameter estimation on executed items should be accomplished by IRT.and the item banking must be build up on the basis of the parameter of difficu1ty. A program developed by Korea ETS, Bilog and Bigsteps were all found to be very powerful to understand the attributes of items. Though multiple true-false type K items have some merits, the items should be examined quantitative1y if they are appropriate or not by IRT. Through the study we have fmally confmned that the new program developed by Korea ETS has its abi1ity to check the validities of items from preparing or scoring to item analysis.