The first of a series of quizzes on types of derived scores concerns interpreting grade-equivalent (GE) scores. The true-false items require a response about whether the stated interpretation of the GE score is sound. An answer key explains specific scoring methods. (CM)

The developer of the Comprehensive Tests of Basic Skills scaling responds to Hoover's attacks on Thurstone and item response theory scales (TM 510 173). While agreeing that grade equivalent (GE) scores are presently the most appropriate developmental score for reporting elementary grade achievement tests, limitations and inconsistencies in the GE…

Grade equivalent (GE) scores for elementary school achievement tests are defended in response to efforts to ban their use. Equal interval developmental scoring methods for the Sequential Tests of Educational Progress and the Comprehensive Tests of Basic Skills are criticized. (BS)

Developmental standard score scales produce unrealistic expectations for growth of low-achieving students only if the low-achieving students are tested in an inappropriate way. Examples illustrate the unrealistic nature of such score scales when applied to the testing of learning disabled and Chapter One students. (SLD)

The author addresses issues raised by Burket (TM 510 174) about the Iowa Test of Basic Skills scaling procedures. Further reasons for his criticism of Thurstone scale scores and item response theory scale scores for elementary school achievement tests are given. (BS)

In comparing the annual growth of low-achieving students and high-achieving students who remain at the same percentile rank, educators must choose between the properties of developmental standard scores and grade equivalents. The growth patterns for grade equivalent scores may be more reasonable than those for standard score scales. (SLD)

In their discussion of problems related to identifying learning disabilities with individually administered achievement tests, Phillips and Clarizio incorrectly conclude that developmental standard score scales produce unrealistic expectations for the growth of low-achieving students. By definition, these scores state how much the norm group's…