Personal construct psychologists have suggested various psychological functions explain differences in the stability of constructs. Among these functions are constellatory and loose construction. This paper argues that measurement error is a more parsimonious explanation of the differences in construct stability reported in these studies. (Author)

Two estimation procedures for the Rasch Model of test analysis are reviewed in detail, particularly with respect to new developments that make the more statistically rigorous conditional maximum likelihood estimation practical for use with longish tests. (Author/JKS)

The purpose of the study was to determine comparability of an online version to the original paper-pencil version of Defining Issues Test 2 (DIT2). This study employed methods from both Classical Test Theory (CTT) and Item Response Theory (IRT). Findings from CTT analyses supported the reliability and discriminant validity of both versions.…

A behavioral domain is well-defined when it is clear to both test developers and test users which categories of performance should or should not be considered for potential test items. Only those tests that are keyed to well-defined domains meet the definition of criterion-referenced tests. The greatest proliferation of criterion-referenced tests…

Two approaches to criterion-referenced test construction are compared. Classical test theory is based on the practice of random sampling from a well-defined domain of test items; latent trait theory suggests that the difficulty of the items should be matched to the achievement level of the student. In addition to these two methods of test…

Reviews recent theoretical, methodological, and analytical developments in language testing, focusing on more refined models of language ability, reliability and validity, performance testing, innovative test formats, new applications of Item Response Theory and Generalizability Theory to test performance. An annotated bibliography discusses seven…

Context effects are defined as being influences on test performance associated with the content of successively presented test items or sections. Four types of context effects are identified: (1) direct context effects (practice effects) which occur when performance on items is affected by the examinee having been exposed to similar types of…

This paper offers college teachers guidelines for improving their teacher made tests. It notes that teachers may focus on how well students have learned course objectives while being unaware of how the testing process itself contributes to the results obtained. The paper reports the results of a test-taking workshop designed to improve college…

This book offers specific how-to advice to college faculty on every stage of the testing process, including planning the test and classifying objectives to be measured, ensuring the validity and reliability of the test, and grading in such a way as to arrive at fair grades based on relevant data. The book examines the strengths and weaknesses of…