%0 Conference Paper %B Annual Conference of the International Association for Computerized Adaptive Testing %D 2011 %T Practitioner’s Approach to Identify Item Drift in CAT %A Huijuan Meng %A Susan Steinkamp %A Paul Jones %A Joy Matthews-Lopez %K CUSUM method %K G2 statistic %K IPA %K item drift %K item parameter drift %K Lord's chi-square statistic %K Raju's NCDIF %B Annual Conference of the International Association for Computerized Adaptive Testing %8 10/2011 %G eng