This book meets a demand in the science education community for a comprehensive and introductory measurement book in science education. It describes measurement instruments reported in refereed science education research journals, and introduces the Rasch modeling approach to developing measurement instruments in common science assessment domains,…

Issues regarding confidence and tolerance intervals are discussed within the context of educational measurement. Conceptual distinctions are drawn between these two types of intervals; and examples, under various error and true score models, are used to compare such intervals. It is shown that there tend to be only small differences in tolerance…

This report describes a procedure that promises to improve the stability, accuracy, and efficiency of the employment of latent trait models and an application of the procedure to the Rasch model. Data were collected from the Portland Public Schools Level Tests administered to 25,740 students. Since each of the 173 items (chosen from the total…

Innovations, Educational Testing Service (ETS's) corporate magazine, provides information on educational assessment for educators, school leaders, researchers and policymakers around the world. Each issue focuses on a particular theme in assessment. This issue explores the question, "What makes a great teacher?" Articles in this issue…

These papers were presented as a symposium on the revision of the general education program at the University of Montevallo (UM) in Alabama. The first paper, "Introduction to Evaluation of General Education at the University of Montevallo," by Patricia S. Ernest and Elizabeth H. Rodgers, describes the core curriculum study and the 13…