Describes a Scottish project--"School-based assessment using item banking"--investigating the feasibility of producing computer-based test marking and reporting facilities. Teachers would construct their own tests from item banks and carry out diagnostic assessment and criterion-referenced measurement to evaluate students with SCRIBE, a…

This study developed a two-parameter linear probabilistic model of criterion referenced measurement, which relates an examinee's observed ability to his true ability through a guessing parameter and a carelessness parameter, both of which are probabilities. This model was applied to a survey of 10- and 14-year-old Australian students to estimate…