This Digest introduces the advantages and disadvantages of three commonly used methods of reporting test score changes: (1) change in percentile rank; (2) scale or raw score change; and (3) percent change. The change in percentile rank method focuses on the increase or decrease of the mean percentile ranking for a group of students. This method…

An earlier Digest described the shortcomings of three methods commonly used to summarize changes in test scores. This Digest describes two less commonly used approaches for examining changes in test scores, those of Standardized Growth Estimates and Effect Sizes. Aspects of these two approaches are combined and applied to the Iowa Test of Basic…

This Digest addresses developing scoring rubrics, administering performance assessments, and scoring, interpreting, and using results. In developing scoring rubrics, the criteria within the scoring rubric should be clearly aligned with the requirements of the task and the state goals and objectives. They should also be expressed in terms of…

This Digest addresses two ways that classroom teachers can use the results of standardized tests: (1) to revise instruction for entire classes or courses; and (2) to develop specific intervention strategies for individual students. Test publishing companies typically provide classroom-level reports to enable teachers to see how a group of students…

Guidelines for explaining standardized test results to parents of students are provided. More specifically, the guidelines cover rationales for testing, the various types of scores and their meanings, and means of interpreting scores. Scores covered include stanine scores, percentile scores, and grade-level equivalent scores. The importance to…

A brief introduction to the topic of gender bias and fairness in testing is provided. A test is biased if men and women with the same ability levels tend to obtain different scores. The conditions under which a test is administered, the wording of individual test items, and a student's attitude toward the test can affect test results. While gender…

Research and evaluation staff members in schools and school districts are frequently called on to answer questions about the quality of schools. Responding merely with test scores is not sufficient, because it is important to communicate information about the total educational program in the district. Additional measures are available.…