@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.}
}
