Participants in achievement tests or psychometric scales can be naturally divided into various sub-groups such as gender, race, social economic status, school district, etc. In order to make meaningful comparison between groups, each item in the test/scale should measure the same underlying construct for participants came from different groups.…

The concept of tailored testing for individuals is applied to the construction of tests for special groups and extended to apply to item content as well as item difficulty. It is suggested that evaluators may decide to construct tests on the basis of a unique combination of items drawn from an item bank to fit the need of a particular group. At…

An achievement testing framework is being developed by the Los Angeles Unified School District to assess the educational progress of 14,000 secondary level compensatory education students with something other than standardized tests. The technique of multiple matrix sampling was applied to the use of large item domains in the subject area of…