@conference {873,
	title = {To weight or not to weight {\textendash} balancing influence of initial and later items in CAT},
	booktitle = {Paper presented at the annual meeting of the National Council on Measurement in Education},
	year = {2002},
	note = {{PDF file, 252 KB}},
	address = {New Orleans LA},
	author = {Chang, Hua-Hua and Ying, Z.}
}
