Researchers frequently evaluate rater judgments in performance assessments for evidence of differential rater functioning (DRF), which occurs when rater severity is systematically related to construct-irrelevant student characteristics after controlling for student achievement levels. However, researchers have observed that methods for detecting…

English language learners are a growing demographic in secondary, two-year, four-year and research institutions where many students encounter their first course in statistics. In the statistics education literature, recent calls have been made to improve statistical education for underserved student populations, including English Language Learners…

The concept of variability is central to statistics. In this research report, we review mathematics education research on variability and, based on that review and on feedback from an expert panel, propose a learning progression (LP) for variability. The structure of the proposed LP consists of 5 levels of sophistication in understanding…

Learning paths have the potential to play an important role in the way educators serve their learners. Empirical research about learning paths is scarce, particularly in a secondary education setting. The present quasi-experimental study took place in the context of a biology course involving 360 secondary school students. A 2 × 2 factorial…

The test review process used by the Buros Center for Testing is described as a series of 11 steps: (1) identifying tests to be reviewed, (2) obtaining tests and preparing test descriptions, (3) determining whether tests meet review criteria, (4) identifying appropriate reviewers, (5) selecting reviewers, (6) sending instructions and materials to…

Reports on the potential problems in scoring responses to sequencing tests, the development of a computer program to overcome these difficulties, and an exploration of the value of scoring procedures. (Author/VWL)

A Number of good ideas can help improve the achievement of low-performing students and close the achievement gap, including determining the placement of veteran teachers, purchasing new curricula, and providing after-school tutoring. However, it is the teacher--and what the teacher does in the classroom--that makes the most difference for…

The concept of scaled achievement tests is discussed and a method of selecting those items of a test that form the most scalable (i.e., having the highest coefficient of reproducibility) subset is presented. Sometimes called a monotonic-deterministic model, this type of test assumes that the test items may be sequentially ordered. To determine the…

This report contains the Proceedings of the 1982 Item Response Theory and Computerized Adaptive Testing Conference. The papers and their discussions are organized into eight sessions: (1) "Developments in Latent Trait Theory," with papers by Fumiko Samejima and Michael V. Levine; (2) "Parameter Estimation," with papers by…

The principal objectives of this conference were to exchange information, discuss theoretical and empirical developments, and to coordinate research efforts. The papers and their authors are: "The Graded Response Model of Latent Trait Theory and Tailored Testing" by Fumiko Samejima; (Incomplete Orders and Computerized Testing" by…

This symposium consists of five papers and presents some recent developments in adaptive testing which have applications to several military testing problems. The overview, by James R. McBride, defines adaptive testing and discusses some of its item selection and scoring strategies. Item response theory, or item characteristic curve theory, is…