This study investigated the effects of linking potentially multidimensional test forms using the fixed item parameter calibration. Forms had equal or unequal total test difficulty with and without confounding difficulty. The mean square errors and bias of estimated item and ability parameters were compared across the various confounding tests. The…

Upon learning that a form of the Sequential Tests of Educational Progress was incorrectly distributed to an unidentified number of high school students along with an answer sheet pregridded with an alternate test form, the Austin Independent School District performed the following research analyses: (1) scored the tests using the key for each…

Direct assessments of the accuracy with which raters can use a rating instrument are presented. This study demonstrated how surplus behavioral incidents scaled during the development of Behaviorally Anchored Rating Scales (BARS) can be used effectively in the evaluation of the newly developed scales. Construction of scenarios of hypothetical…