While score comparability across test forms typically relies on common (or randomly equivalent) examinees or items, innovations in item formats, test delivery, and efforts to extend the range of score interpretation may require a special data collection before examinees or items can be used in this way--or may be incompatible with common examinee…

This article provides a brief introduction to the Rasch model. Motivation for using Rasch analyses is provided. Important Rasch model concepts and key aspects of result interpretation are introduced, with major points reinforced using a simulation demonstration. Concrete guidelines are provided regarding sample size and the evaluation of items.

Just like all the high-stakes tests that determine students' futures nowadays, The Chorizo Test is a standardized test rooted in the culture of the test makers. It was originally created to be used with students in teacher training programs to sensitize them to the pitfalls inherent in standardized pencil-and-paper tests, such as linguistic bias…

Focuses on the practical effects of using different statistical treatments with omitted and not-reached items in an item-response theory application. The strategy selected for scoring such items has considerable impact on the interpretation of results for individual or group-level assessments. (Author/SLD)

Using item response theory, discusses the difficulties faced in evaluating measurement invariance when a psychological construct is assessed through a test or inventory composed of categorical items. Illustrates the usefulness of fitplots in assessing measurement invariance in inventory data. (SLD)

The microcomputer version of the Ohio Vocational Interest Survey (OVIS II) differs from the machine-scored version in its ability to incorporate data from the OVIS II:Career Planner in its printed report. It differs from the hand-scored version in its ability to include data from the OVIS II:Work Characteristic Analysis in its printed report.…

The Student-Problem (S-P) methodology is described using an example of 24 students on a test of 44 items. Information based on the students' test score and the modified caution index is put to diagnostic use. A modification of the S-P methodology is applied to domain-referenced testing. (Author/CM)

The LOGTRUE program can be used to obtain a scale of equated raw scores for two tests with parameter estimates on a common item response theory scale. The program derives its name from the method of logistic true score equating described by Lord (1980). The method can be applied to two tests with overlapping items administered to different groups…

Describes measurement problems associated with computer based testing (CBT) programs when they are part of a computer assisted instruction curriculum. Topics discussed include CBT standards; selection of item types; the contamination of items that arise from test design strategies; and the non-equivalence of comparison groups in item analyses. (8…

Knowledge of the nature of human population growth is necessary to understand the world as well as to manage population-related problems in health, education, and environmental protection. The Second International Science Study asked U.S. students to select the graph that best portrayed the nature of population increases in the past 1,000 years.…

A previously published discussion of the ACER "Australian Studies in School Performance" suggests that the performance of students constitutes a concern; however, it is possible to be encouraged by evidence from the study that 97% of 10 year olds and 99% of 14 year olds have mastered the abilities to understand simple written sentences.…

The development, testing, and modification of an instrument to measure attitude change toward economic issues among economics students is described in this paper. It was initially hypothesized that a continuum of attitudes to economic issues existed, ranging from extreme interventionist ideas at one end to extreme laisez-faire at the other end,…

The International English Language Testing System is described, including the test's underlying principles, design, administration, scoring, reliability, and interpretation. Some criticisms of the program are briefly discussed. (MSE)

New Hampshire has adopted a standards-based statewide assessment, the New Hampshire Educational Improvement and Assessment Program (NHEIAP), which is designed to measure students' learning against proficiency standards at grades 3, 6, and 10. Because of the difficulty teachers had in interpreting the NHEIAP results, a custom-designed software…

How data gathered through item response theory (IRT) analysis can be used to give immediate diagnostic information without a computer is explained. The Kidmap, developed by B. D. Wright and others (1980), provides clear information in a visual manner. Its major problem lies in the need for a computer and suitable software to construct a Kidmap.…