Studied the reactions to video-based and reading comprehension tests of 105 African American and 361 Caucasian applicants for state trooper positions and the impact the reactions had on the construct measured by the test. Results show relatively favorable impressions of both tests. Perceptions of examinees regarding selection procedures did not…

Item overlap coefficient (IOC) formulas are discussed, providing six warnings about their calculation and interpretation and some explanations of why item overlap influences the Minnesota Multiphasic Personality Inventory and the Millon Clinical Multiaxial Inventory factor structures. (SLD)

A general linear latent trait model for continuous item responses is described. The special unidimensional case for continuous item response is the model of K. G. Joreskog (1971) of congeneric item response. The correspondence between models for continuous and dichotomous item responses is shown to be closer than usually supposed. (SLD)