%0 Conference Paper %B Paper presented at the annual meeting of the American Educational Research Association %D 1995 %T The effect of population distribution and methods of theta estimation on CAT using the rating scale model %A Chen, S. %A Hou, L. %A Fitzpatrick, S. J. %A Dodd, B. G. %B Paper presented at the annual meeting of the American Educational Research Association %C San Francisco %G eng