This article illustrates the use of an explanatory item response modeling (EIRM) approach in the context of measuring group differences in science achievement. The distinction between item response models and EIRMs, recently elaborated by De Boeck and Wilson (2004), is presented within the statistical framework of generalized linear mixed models.…

This article introduces the issue of articles on research assessments and rankings. It focuses on the British Research Assessment Exercises (RAEs) and New Zealand's Performance Based Research Fund (PBRF). It contrasts these with systems that are not tied to funding formulas and emphasise quality enhancement rather than quality assurance. It…

Describes a study in which two types of testing were used in an engineering course to determine significant differences in evaluating student performance. Results were not conclusive. (RT)

Social studies research has told us very little in the past 30 years. There are several reasons for this state of affairs in social studies. First, inferential statistics has become much too prominent in research thinking and practice. Replication should be used by researchers to build a useful body of knowledge. A second reason for lack of…

Outlines the foundations of the qualitative and quantitative approaches to research and discusses the implications of these two completely different approaches in educational research. Points out they are not complementary as they are separate scientific paradigms.(MD)

Indicators of mathematics and science education progress are important to policymakers and the public in order to evaluate the quality of education. Recent reports have evaluated existing indicators and suggested core aspects of mathematics and science education that an indicator system should evaluate. This note discusses two fundamental aspects…

A system designed to assist training managers or evaluators in increasing the effectiveness of military training programs has been developed, tested, and refined. The Training Program Evaluation (TPE) system offers advantages over traditional approaches of assessing program effectiveness. TPE involves the direct observation of training and testing…

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…

Introduces college level geography students to the International System of Units (SI), a standardized set of units used in science, engineering, and commerce. Identifies the SI base units as meter, kilogram, second, kelvin, ampere, mole, and candela. Includes geographically relevant examples of each. (MJP)