%0 Journal Article %J Applied Measurement in Education %D 2006 %T How Big Is Big Enough? Sample Size Requirements for CAST Item Parameter Estimation %A Chuah, Siang Chee %A F Drasgow %A Luecht, Richard %B Applied Measurement in Education %V 19 %P 241-255 %U http://www.tandfonline.com/doi/abs/10.1207/s15324818ame1903_5 %R 10.1207/s15324818ame1903_5