Limitations of grade and age equivalent scores in the educational assessment of handicapped students include unequal variance across content areas, grade and age groups, and encouragement of comparison with inappropriate groups. The author recommends the use of expanded scale scores. (Author/CL)

This chapter discusses units of measurement, relates types of scales and norms to the purpose for testing, looks at types of test data typically reported, identifies the primary users of test information, looks at limitations of scales and norms, and looks at the interaction between user and data. (Author/RL)

Specific recommendations are made concerning the circumstances under which the benefits of out-of-level testing outweigh the problems associated with it. Topics explored are: various methods for deciding when a set of test scores is invalid and the utility of these methods for local evaluators, the accuracy of vertical scaling, and the usefulness…

Twenty-one studies that reported mean score differences between the Woodcock-Johnson Tests of Cognitive Ability (WJTCA) and the Wechsler Intelligence Scale for Children-Revised (WISC-R) Full Scale are summarized. The differences are found to be minimal and are attributed to data bias and WJTCA's higher correlation with achievement. (EGS)

This critical evaluation of the Slosson Intelligence Test (SIT) determined that the test items are 30 years old, scores are derived from a nonrepresentative norm group, and scores are not interchangeable with other intelligence measures. The paper concludes that the SIT is unsuited for educational decision-making purposes, including screening,…

Research evidence relating to the utility of the RMC evaluation models of compensatory education employing non-normed tests is examined. The history and evolution of five early models into the current norm-referenced model utilizing a non-normed test (Model A2), non-normed versions of a comparison model (Model B2), and the regression model (Model…

This article examines whether changes in the ethnic minority composition of the standardization sample for the Peabody Picture Vocabulary Test-III (PPVT-III) can be used as the sole explanation for children's better test scores when compared to an earlier edition. Analysis suggests other factors may explain improved performance. (Contains…

The study reported in this paper examined whether a disproportionate number of boys and girls in a given grade level at various schools might have an inequitable effect on the mean achievement test scores of those schools. The student population of the Palm Beach County Schools, Florida, reflecting a cross-section of socio-economic backgrounds,…

This guide--written for school administrators, teachers, counselors, parents, and the community--describes educational tests and measurements and test-related statistics. While specifically intended to help readers interpret the tests administered in the Los Angeles (California) Unified School District, this information may also be used to…

With the increasing globalization of human resources practices, a commensurate increase in demand has occurred for multi-language ("global") personality norms for use in selection and development efforts. The combination of data from multiple translations of a personality assessment into a single norm engenders error from multiple sources. This…

Scores on the Wechsler Intelligence Scale for Children-Revised (WISC-R) and Wechsler Adult Intelligence Scale-Revised (WAIS-R) Verbal, Performance, and Full Scales were compared for 26 adolescents with educable mental handicaps. The WAIS-R, while strongly correlated with the WISC-R, provided higher scores on all three scales. Several WISC-R…

Nine papers are presented that focus on the Raven Progressive Matrices tests. An overview of research on the Progressive Matrices; a review of international norming studies; recent data from China, Hong Kong, Brazil, New Zealand, and Australia; and a comparison of data for retarded and nonretarded children are presented. (SLD)

The predictive validity of the Graduate Record Examinations (GRE) aptitude test has been investigated for foreign students at the University of Kansas. A total of 148 students whose first language was other than English were selected for this study. Verbal and quantitative scores on the GRE, field of study, sex, and year of initial enrollment were…

Criticism of standardized tests is extensive, and a number of claims of test misuse have been made. Test misuse is discussed in six common circumstances. (1) Test users accept the title of a test as an accurate and complete description of the variable being measured, not having full knowledge of the test, its items, and the test manual. A…

American school officials almost invariably compare local and national achievement through one of the following norm-referenced tests: (1) the California Achievement Test; (2) the Stanford Achievement Test; (3) the Metropolitan Achievement Test; (4) the Science Research Associates Test; (5) the Comprehensive Test of Basic Skills; and (6) the Iowa…