The average Kullback-Keibler (K-L) information index (H. Chang and Z. Ying, in press) is a newly proposed statistic in Computerized Adaptive Testing (CAT) item selection based on the global information function. The objectives of this study were to improve understanding of the K-L index with various parameters and to compare the performance of the…

This study focused on the robustness of unidimensional item response theory (UIRT) models in computerized classification testing against violation of the unidimensionality assumption. The study addressed whether UIRT models remain acceptable under various testing conditions and dimensionality strengths. Monte Carlo simulation techniques were used…

When individuals are given tests that are too hard or too easy, the resulting scores are likely to be poor estimates of their performance. To get valid and accurate test scores that provide meaningful results, one should use functional-level testing (FLT). FLT is the practice of administering to an individual a version of a test with a difficulty…

In adaptive testing, item selection is sequentially optimized during the test. Since the optimization takes place over a pool of items calibrated with estimation error, capitalization on these errors is likely to occur. How serious the consequences of this phenomenon are depends not only on the distribution of the estimation errors in the pool or…

Since 1915, the movement to test reading ability has grown in importance and pervasiveness. Testing is relied on to offer quantitative information, to determine the usefulness of instructional approaches, and to help ensure accountability. The demand for tests arose during the period from 1990 to 1992 when school became compulsory and educators…

Students were given practical tests in which they performed mathematical tasks, and written tests covering the same material. In general students scored higher on the practical test than the written test, and there were interaction effects with the order in which the tests were given and with verbal reasoning. (SD)

Explains to teachers how to give norm tests without having a statistical background or access to a computer. (RB)

By analyzing analogy questions, supports the notion that ability tests can predict school achievement because the two types of testing are very similar. (DW)

Cites cultural reasons for abandoning use of intelligence testing. (DW)

Chang and Zhang (2002, 2003) proposed several baseline criteria for assessing the severity of possible test security violations for computerized tests with high-stakes outcomes. However, these criteria were obtained from theoretical derivations that assumed uniformly randomized item selection. The current study investigated potential damage caused…

A report of a special panel, appointed by the Board of Scientific Affairs of the American Psychological Association, which investigates the use of ability tests with disadvantaged students in the schools, focusing especially on intelligence tests. Various sections present a discussion of the theoretical rationale of human abilities underlying the…

This paper highlights the need for a systematic, content aware, and theoretically-based approach to test design. The cognitive components approach is endorsed, and is applied to the development of a computerized perceptual speed test. Psychometric literature is reviewed and shows that: every major multi-factor theory includes a clerical/perceptual…

Computer-adaptive testing (CAT) allows improved security, greater scoring accuracy, shorter testing periods, quicker availability of results, and reduced guessing and other undesirable test behavior. Simple approaches can be applied by the classroom teacher, or other content specialist, who possesses simple computer equipment and elementary…

The present investigation was intended to provide information on the type of strategies employed by learning disabled (LD) students on standardized, group-administered achievement test items. Of particular interest was level of strategy effectiveness and possible differences in strategy use between LD and non-disabled students. Students attending…