@article {2028,
	title = {A Simulation Study of Methods for Assessing Differential Item Functioning in Computerized Adaptive Tests},
	journal = {Applied Psychological Measurement},
	volume = {18},
	number = {2},
	year = {1994},
	pages = {121-140},
	author = {Zwick, R. and Thayer, D. T. and Wingersky, M.}
}
@booklet {1590,
	title = {A simulation study of methods for assessing differential item functioning in computer-adaptive tests (Educational Testing Service Research Rep No RR 93-11)},
	year = {1993},
	address = {Princeton NJ: Educational Testing Service.},
	author = {Zwick, R. and Thayer, D. and Wingersky, M.}
}
@booklet {1407,
	title = {A simulation study of some simple approaches to the study of DIF for CATs},
	year = {1991},
	address = {Internal memorandum, Educational Testing Service},
	author = {Holland, P. W. and Zwick, R.}
}
