The Cattell-Horn-Carroll (CHC) taxonomy of cognitive abilities married John Horn and Raymond Cattell's Extended Gf-Gc theory with John Carroll's Three-Stratum Theory. While there are some similarities in arrangements or classifications of tasks (observed variables) within similar broad or narrow dimensions, other salient theoretical features and…

Considers the situation in which content or administrative considerations limit the way in which a test can be partitioned to estimate the internal consistency reliability of the total test score. Demonstrates that a single-valued estimate of the total score reliability is possible only if an assumption is made about the comparative size of the…

Issues that must be addressed in the large-scale application of computerized adaptive testing are explored, including considerations of test design, scoring, test administration, item and item bank development, and other aspects of test construction. Possible solutions and areas in which additional work is needed are identified. (SLD)

Several multiple-choice item formats are examined in the current climate of test reform. The reform movement is discussed as it affects use of the following formats: (1) complex multiple-choice; (2) alternate choice; (3) true-false; (4) multiple true-false; and (5) the context dependent item set. (SLD)

The University of California's (Los Angeles) Center for Research on Evaluation, Standards, and Student Testing survey of state assessment directors reveals that about 25 states currently study or develop performance assessments. Obstacles to statewide use of performance assessments were expressed. The new Student Assessment Exchange should…

Four simulated mathematical and verbal test forms were produced by test assembly procedures proposed in legislative bills in California and New York in 1986 to minimize differences between majority and minority scores. Item response theory analyses of data for about 22,000 black and 28,000 White high-school students were conducted. (SLD)