A procedure is described for estimating the reliability and conditional standard errors of measurement of scale scores incorporating the discrete transformation of raw scores to scale scores. The method is illustrated using a strong true score model, and practical applications are described. (SLD)

Assessment programs like the American College Test (ACT) and the Scholastic Aptitude Test (SAT) continue to play an important role in the admission decisions of many colleges. In many cases, they also serve a meaningful counseling and guidance function for high schools and colleges. The data reported in this paper suggest that the two programs can…

This manual contains preliminary information, largely of a technical nature, about the enhanced American College Testing (ACT) Program introduced in October 1989. It focuses primarily on the tests of educational development, the component of the program that has been substantially revised. Although one-third of the ACT Interest Inventory Items has…