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Guo, F., & Wang, G.. (2003). Online calibration and scale stability of a CAT program. In Paper presented at the annual meeting of the American Educational Research Association. Chicago IL.
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Guo, F., Stone, E., & Cruz, D.. (2001). On-line Calibration Using PARSCALE Item Specific Prior Method: Changing Test Population and Sample Size. In Paper presented at National Council on Measurement in Education Annual Meeting. Seattle, Washington.