Recent research has demonstrated an intersectional approach to the study of differential item functioning (DIF). This approach expands DIF to account for the interactions between what have traditionally been treated as separate grouping variables. In this paper, we compare traditional and intersectional DIF analyses using data from a state testing…

This article proposes that sampling design effects have potentially huge unrecognized impacts on the results reported by large-scale district and state assessments in the United States. When design effects are unrecognized and unaccounted for they lead to underestimating the sampling error in item and test statistics. Underestimating the sampling…

Evidence of comparability is generally needed whenever there are variations in the conditions of an assessment administration, including variations introduced by the administration of an assessment on multiple digital devices (e.g., tablet, laptop, desktop). This article is meant to provide a comprehensive examination of issues relevant to the…

The synthetic function is a weighted average of the identity (the linking function for forms that are known to be completely parallel) and a traditional equating method. The purpose of the present study was to investigate the benefits of the synthetic function on small-sample equating using various real data sets gathered from different…

A simultaneous equating of four new test forms to each other and to one previous form was accomplished through a complex design incorporating seven separate equating links. Each new form was linked to the reference form by four different paths, and each path produced a different score conversion. The procedure used to resolve these inconsistencies…

The purpose of this study is to determine the extent of scale drift on a test that employs cut scores. It was essential to examine scale drift for this testing program because new forms in this testing program are often put on scale through a series of intermediate equatings (known as equating chains). This process may cause equating error to…

Many universities rely on data gathered from tests that are low stakes for examinees but high stakes for the various programs being assessed. Given the lack of consequences associated with many collegiate assessments, the construct-irrelevant variance introduced by unmotivated students is potentially a serious threat to the validity of the…

Various applications of item response theory often require linking to achieve a common scale for item parameter estimates obtained from different groups. This article used a simulation to examine the relative performance of four different item response theory (IRT) linking procedures in a random groups equating design: concurrent calibration with…

A widely used approach for categorizing the level of differential item functioning (DIF) in dichotomous items is the scheme proposed by Educational Testing Service (ETS) based on a transformation of the Mantel-Haeszel common odds ratio. In this article two classification schemes for DIF in polytomous items (referred to as the P1 and P2 schemes)…

This study applied the maximum expected information (MEI) and the maximum posterior-weighted information (MPI) approaches of computer adaptive testing item selection to the case of a test using polytomous items following the partial credit model. The MEI and MPI approaches are described. A simulation study compared the efficiency of ability…

A critical, but often neglected, component of any large-scale assessment program is the reporting of test results. In the past decade, a body of evidence has been compiled that raises concerns over the ways in which these results are reported to and understood by their intended audiences. In this study, current approaches for reporting…

Cost factors associated with the development, administration, and scoring of performance assessment tasks are examined in the context of a statewide or other large-scale assessment program. Resources of money, time, and expertise are discussed. (SLD)

Two criteria defined in previous research that can be used to evaluate the validity of normative data provided for customized tests are discussed. Results of an exploratory investigation of the validity of such data for about 2,500 fifth graders in a 1989 study are reported. (SLD)

Methods for detecting copying of multiple-choice test responses are reviewed and compared with respect to their effectiveness and the practicality of their application for groups of varying sizes. Reasons why effective detection methods are seldom applied in standardized and classroom testing are discussed. (SLD)

The University of California's (Los Angeles) Center for Research on Evaluation, Standards, and Student Testing survey of state assessment directors reveals that about 25 states currently study or develop performance assessments. Obstacles to statewide use of performance assessments were expressed. The new Student Assessment Exchange should…