The authors argue that personnel who select standardized achievement tests have been led to believe that the major achievement test batteries differ very little in terms of the topics they test; but that the content covered by these major tests is different, and that such differences have consequences for instructional content. To test this…

An assessment of the Philadelphia (Pennsylvania) City-Wide Testing Program is presented to determine the effects of using customized achievement tests to achieve multiple purposes. The tests are derived from, or related to, the tests in a nationally standardized test battery, but include items written specifically to measure the local curriculum.…