The choice of anchor tests is crucial in applications of the nonequivalent groups with anchor test design of equating. Sinharay and Holland (2006, 2007) suggested "miditests," which are anchor tests that are content-representative and have the same mean item difficulty as the total test but have a smaller spread of item difficulties.…

This article illustrates five different methods for estimating Angoff cut scores using item response theory (IRT) models. These include maximum likelihood (ML), expected a priori (EAP), modal a priori (MAP), and weighted maximum likelihood (WML) estimators, as well as the most commonly used approach based on translating ratings through the test…

Scores on essay-based assessments that are part of standardized admissions tests are typically given relatively little weight in admissions decisions compared to the weight given to scores from multiple-choice assessments. Evidence is presented to suggest that more weight should be given to these assessments. The reliability of the writing scores…

Compared four mapping item methods using data from the physical science test of the National Assessment of Educational Progress and studied the opinions of science content area experts about the difficulty of the items through a survey completed by 148 science teachers or scientists. Results of model-based mapping methods were more concordant with…

Discusses the comparison of groups of individuals who were administered different forms of a test. Focuses on the situation in which there is little overlap in content between the test forms. Reviews equating problems in national tests in Canada and Israel. (SLD)

This National Council on Measurement in Education (NCME) instructional module compares classical test theory and item response theory and describes their applications in test development. Related concepts, models, and methods are explored; and advantages and disadvantages of each framework are reviewed. (SLD)

Examined the performance of Irish students on multiple-choice, short-answer, and extended-response item sets from the Third International Mathematics and Science Study to determine whether Ireland's relative rank among the more than 40 countries involved remained stable. Findings provide additional evidence that comparing student achievement…

Different methodologies for linking tests across languages are reviewed and evaluated, focusing on monolingual item response theory, bilingual group designs, and matched monolingual group designs. These methods, although not without weaknesses, are superior for promoting score comparability than methods that rely on translation or expert judgment…