This article reports on the development and piloting of a German version of a concept test to assess students' conceptual knowledge of density. The concept test was administered in paper-pencil format to 222 German secondary school students as a post-test after instruction in all relevant concepts of density. We provide a psychometric…

Many scholars compared various item discrimination indices in real or simulated data. Item discrimination indices, such as item-total correlation, item-rest correlation, and IRT item discrimination parameter, provide information about individual differences among all participants. However, there are tests that aim to select a very limited number…

Elicited Imitation Tests (EITs) are commonly used in second language acquisition (SLA)/bilingualism research contexts to assess the general oral proficiency of study participants. While previous studies have provided valuable EIT construct-related validity evidence, some key gaps remain. This study uses an integrative data analysis to further…

Since its implementation in 2004, the Canadian English Language Benchmark Assessment for Nurses (CELBAN) has been accepted as evidence of language ability for licensure of internationally educated nurses (IENs) in Canada. This article focuses on the complexities of sustaining an occupation-specific assessment over time. The authors reference the…

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.…

It has been over a decade since the International Civil Aviation Organization proposed Language Proficiency Requirements to improve aviation English proficiency and air safety through adequate aviation English tests. Yet, many of the aviation English assessment procedures appear to not meet international professional standards for language tests.…

This White Paper provides a selection of some general principles of assessment or overarching ideas that may guide educators in selecting, developing, and implementing assessments of students' learning at all instructional levels or educational settings in which they are used. These principles represent a framework for understanding the nature of…

Variation in test performance among examinees from different regions or national jurisdictions is often partially attributed to differences in the degree of content correspondence between local school or training program curricula, and the test of interest. This posited relationship between test-curriculum correspondence, or "alignment,"…

The "Diplôme d'études de langue française" (DELF) has recently gained attention in Canada for its potential as a national French second language (FSL) proficiency test. This article explores the perceptions of students, teachers, and parents in various school jurisdictions across Canada on a range of issues related to the DELF test and…

The Assessment of Basic Learning Abilities (ABLA) test requires a tester to attempt to teach to a person, using standard prompting and reinforcement procedures, six tasks that are hierarchically ordered in difficulty. Performance on the test provides valuable information for teachers and rehabilitation workers to match the difficulty of training…

A simple technique, developed by A. Phillips (1987) is used to approximate the covariance between the Mantel-Haenszel log-odds-ratio estimator for a 2 x 2 x k table and the sample marginal proportions. These results are then applied to obtain an approximate variance estimate of an adjusted risk difference based on the Mantel-Haenszel odds-ratio…

In educational testing, one is concerned to get as much information as possible about a given examinee from each minute of testing time. Maximum information is obtained when the difficulty of each test exercise matches the estimated ability level of the examinee. The goal of adaptive testing is to accomplish this. Adaptive patterns are reviewed…

This paper presents six steps in test construction generally recommended by measurement textbook authors. The focus is primarily on paper-and-pencil achievement tests as used by class instructions, although the discussion touches on the construction of other types of assessment. The six steps are: (1) determine the test purpose; (2) determine the…

This study examined initial evidence of changes in fit to a unidimensional model for some language tests at multiple ability levels. Seven data sets were analyzed using the first phase of exploratory factor analysis: principal component eigenvalue extraction. Each data set is analyzed at varying n-sizes: whole group; random subsample; and five…

Modern applications of computerized adaptive testing (CAT) are typically grounded in item response theory (IRT; Lord, 1980). While the IRT foundations of adaptive testing provide a number of approaches to adaptive test scoring that may seem natural and efficient to psychometricians, these approaches may be more demanding for test takers, test…