@conference {2220,
	title = {The effectiveness of using multiple item pools in computerized adaptive testing},
	booktitle = {Annual meeting of the National Council on Measurement in Education },
	year = {2005},
	month = {04/2005},
	address = {Montreal, Canada},
	author = {Zhang, J. and Chang, H.}
}
@conference {1291,
	title = {Evaluating computer-based test security by generalized item overlap rates},
	booktitle = {Paper presented at the annual meeting of the American Educational Research Association},
	year = {2003},
	address = {Chicago IL},
	author = {Zhang, J. and Lu, T.}
}
