In the attempt to identify or prevent unfair tests, both quantitative analyses and logical evaluation are often used. For the most part, fairness evaluation is a pragmatic attempt at determining whether procedural or substantive due process has been accorded to either a group of test takers or an individual. In both the individual and comparative…

The purpose of this research was to investigate the diagnostic validity of the Maryland Diagnostic Arithmetic Test (MDAT) as a group-administered test. The MDAT is a domain-referenced diagnostic test consisting of several sub-tests covering the content of elementary school arithmetic from sets to non-negative rational numbers. Forty-five…

This report describes the general plan for a study to clarify the interpretation of group performance measures of student achievement. Group tests are the most efficient procedure for collecting achievement information from a large number of students, but they also require item formats that may be different from the form in which students normally…