@conference {2081,
	title = {Practitioner{\textquoteright}s Approach to Identify Item Drift in CAT},
	booktitle = {Annual Conference of the International Association for Computerized Adaptive Testing},
	year = {2011},
	month = {10/2011},
	keywords = {CUSUM method, G2 statistic, IPA, item drift, item parameter drift, Lord{\textquoteright}s chi-square statistic, Raju{\textquoteright}s NCDIF},
	author = {Huijuan Meng and Susan Steinkamp and Paul Jones and Joy Matthews-Lopez}
}
