@booklet {1582,
	title = {Impact of several computer-based testing variables on the psychometric properties of credentialing examinations (Laboratory of Psychometric and Evaluative Research Report No 393)},
	year = {2001},
	address = {Amherst, MA: University of Massachusetts, School of Education.},
	author = {Xing, D. and Hambleton, R. K.}
}
