@conference {1280,
	title = {Effects of test administration mode on item parameter estimates},
	booktitle = {Paper presented at the annual meeting of the National Council on Measurement in Education},
	year = {2003},
	note = {{PDF file, 233 KB}},
	address = {Chicago IL},
	author = {Yi, Q. and Harris, D. J. and Wang, T. and Ban, J-C.}
}
@conference {837,
	title = {Effects of nonequivalence of item pools on ability estimates in CAT},
	booktitle = {Paper presented at the annual meeting of the National Council on Measurement in Education},
	year = {2000},
	note = {PDF file, 657 K},
	address = {New Orleans LA},
	author = {Ban, J. C. and Wang, T. and Yi, Q. and Harris, D. J.}
}
