This study assesses the accuracy of ASCAL, a microcomputer-based program for estimating item parameters for the three-parameter logistic model in item response theory. Item responses are generated from a three-parameter model, and item parameter estimates from ASCAL are compared to the generating item parameters and to estimates produced by…

A study to facilitate computer generation of test items succeeded in developing a set of criteria which could be used by a computer to select sentences suitable for sentence completion question items. The sentence completion item requires the student to complete a sentence from which one or more words have been deleted. Analysis of 110 appropriate…