In this qualitative study, various professionals in specialized schools for students who are visually impaired provided information on assessment tools; how information was used to plan Individualized Education Programs; and their opinions on the reliability, validity, and usefulness of various measurements. The implications of the findings for…

The California Chemistry Diagnostic Test (CCDT) was developed by chemistry faculties at the University of California, California State University, and California Community College systems to address dissatisfaction with existing chemistry assessment instruments. The instrument was tested at 25 campuses of the 3 systems, after which Glendale…

This digest examines the use of standardized, nationally normed testing in assessing the progress of American Indian and Alaska Native (AI/AN) students and describes alternative forms of assessment. For years, researchers have criticized the overuse of standardized, nationally normed tests to assess learner and school success. Problems with such…

This paper reports 20 unsolved problems in educational measurement and points toward what seem to be promising avenues of solution. The first group of concerns involves validity, posing the problems of obtaining suitable validity criteria, determining and measuring the predictor variables that best characterize the traits and proficiencies of…

Starting in the late 1980s, two teams of researchers, well known for their criticism of standardized tests on equity and validity grounds, began attacking standardized testing on efficiency grounds as well, using cost-benefit analysis to do it. Their analyses are reviewed, and their conclusions discussed. The first team, Lorrie A. Shepard, Amelia…

The hypothesis that faulty classical psychometric and sampling procedures in test construction could generate systematic bias against ethnic groups with smaller representation in the test construction sample was studied empirically. Two test construction models were developed: one with differential representation of ethnic groups (White, African…

Response patterns to the Raven Coloured Progressive Matrices (CPM) were analyzed for a sample of 203 Hispanic and 254 Anglo first- through fifth-grade children from a rural school district in southern Colorado. Gender distributions were nearly equal. Gender and ethnic differences were examined within the context of determining whether the CPM…

This publication reviews issues and processes in the quest for less-biased, least-biased, non-biased assessment. It is intended to aid the school psychologist in assisting all individuals in placement or program decisions for school-age children. The first section articulates the common sources of bias in assessment and identifies concepts…

Although frequently attacked as invalid, demeaning, biased, illegal, and irrelevant, preemployment testing procedures appear to be increasing in popularity. Many prominent companies and organizations are making extensive use of tests. Part of the resurgence of testing is attributable to clearer definitions of acceptable practice. Legal precedents…

This study examined differential item performance in the Progressive Achievement Tests for Mathematics (PAT Math) by both Pakeha (reference--majority) and Maori (focal--minority) students in New Zealand using both Item Response Theory (IRT) and non-IRT techniques. The PAT Math, a 50-item standardized test used in part to guide within class and…

The paper provides a current and historical overview of the educational inequities suffered by handicapped language minority students and explores the future of bilingual special education. The review covers such areas as a pending court case, the lack of laws dealing specifically with bilingual special education, overrepresentation of language…

Legal issues at the state and constitutional levels and associated misconceptions related to written preemployment integrity tests are addressed. Common misconceptions include the beliefs that: (1) such tests fall within the purview of state antipolygraph statutes; (2) unfair discrimination doctrines are violated by integrity testing; and (3)…

Comments are made on the review papers presented by six Dutch psychometricians: Ivo Molenaar, Wim van der Linden, Ed Roskam, Arnold Van den Wollenberg, Gideon Mellenbergh, and Dato de Gruijter. Molenaar has embraced a pragmatic viewpoint on Bayesian methods, using both empirical and pure approaches to solve educational research problems. Molenaar…

The reliability of item bias estimates was studied for four methods: (1) the transformed delta method; (2) Shepard's modified delta method; (3) Rasch's one-parameter residual analysis; and (4) the Mantel-Haenszel procedure. Bias statistics were computed for each sample using all methods. Data were from administration of multiple-choice items from…

Item bias is defined as the dependence of item responses and group membership conditional on the value of the trait that the test is supposed to measure. The results of item bias detection methods based on this conditional definition and using a stepwise or iterative procedure appear to be adequate. In this paper, experimental studies in the…