A Comparative Study of Item Analysis by Item Response Theory Based for Initiating CAT(Computer Adaptive Test) System

Lee, Chang Kyou; Park, Jong Sung; Lee, Eun Il; Lee, Sook Ja; Park, Eun Sook; Park, Young Joo; Lee, Chang Kyou; Park, Jong Sung; Lee, Eun Il; Lee, Sook Ja; Park, Eun Sook; Park, Young Joo

doi:2001.13.1.107

Korean J Med Educ > Volume 13(1); 2001 > Article

Original Article

Korean Journal of Medical Education 2001;13(1): 107-115. doi: https://doi.org/10.3946/kjme.2001.13.1.107

A Comparative Study of Item Analysis by Item Response Theory Based for Initiating CAT(Computer Adaptive Test) System

Chang Kyou Lee, Jong Sung Park, Eun Il Lee, Sook Ja Lee, Eun Sook Park, Young Joo Park

¹Department of Clinical Laboratory Sciences, College of Health Sciences, Korea Univ, Seoul, Korea.
²College of Medicine, Korea Univ, Seoul, Korea.
³College of Nursing, Korea Univ, Seoul, Korea.

ABSTRACT

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 difficulty. A program developed by Korea ETS Inc, 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 quantitatively if they are appropriate or not by IRT. Through the study we have finally confirmed that the new program developed by Korea ETS has its ability to check the validities of items from preparing or scoring to item analysis.

Keywords: CAT;IRT;Korea ETS Inc