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Impact of flawed items on ability estimation in CAT. In Paper presented at the annual meeting of the National Council on Measurement in Education. Montreal, Canada.
. (1999). The impact of scoring flawed items on ability estimation in CAT. In Paper presented at the annual meeting of the Psychometric Society. Urbana, IL.
. (1998). Introduction of a computer adaptive GRE General test (Research Report 93-57). Princeton NJ: Educational Testing Service.
. (1993).