G. Burket's criticisms regarding calculation and interpretation of group scores on norm-referenced tests are discussed. Burket and Baglin seem to agree on the existence of a problem in the calculation and interpretation of group scores on norm-referenced tests but disagree on the issue of that problem's causes and solutions. (TJH)

While major test publishers randomly select school districts for their national norming studies, a survey of "accepting" and "declining" districts supports the hypothesis that self-selection bias results in overrepresentation of districts which already use a specific publisher's tests or instructional materials. (Author/BW)

Norm-referenced standardized achievement tests are designed for obtaining group scores which can vary widely, depending on not only the measure of central tendency but also the type of derived score employed. This situation is hypothesized to be the result of using inappropriate statistical procedures to develop publishers' scaled scores.…