The Rasch Model is an item response theory, one parameter model developed that states that the probability of a correct response is a function of the difficulty of the item and the ability of the candidate. Item banking is useful for language testing. The Rasch Model provides estimates of item difficulties that are meaningful, irrespective of…

Multidimensionality is known to affect the accuracy of item parameter and ability estimations, which subsequently influences the computation of item characteristic curves (ICCs) and true scores. By judiciously combining sections of a Law School Admission Test (LSAT), 11 sections of varying degrees of uni- and multidimensional structures are used…

Person-fit statistics have been proposed to investigate the fit of an item score pattern to an item response theory (IRT) model. This study investigated how these statistics can be used to detect different types of misfit. Intelligence test data for 992 people at or beyond college level were analyzed using person-fit statistics in the context of…

The purpose of this simulation was to assess the improvements in estimates of standard errors that could be expected if students participating in NAEP were pre-assigned to test booklets that were adapted to their level of performance based on their state assessment scores. Students in extreme quartiles would receive one regular NAEP block and…

For the past two years, Achieve, Inc. has worked with the Transition Mathematics Project (TMP), a collaborative project of K-12 schools, community and technical colleges, and baccalaureate institutions within the state of Washington, as it developed mathematics standards that "define the core knowledge and skills expected of students entering…

In 1998 and again in 2002, samples of eighth grade students in California were tested in reading as part of the state-level component of the National Assessment of Educational Progress (NAEP). In each of these years, all eighth graders in the state were also required to participate in the state's accountability testing, which included the reading…

Twenty-four Piagetian-based written items representing different forms (stages) of thought and different logical operations were solved by 553 participants from required introductory logic classes in a state university in a medium-sized midwestern city and from a suburban school district of that city. Responses to each item were scored by quality…

This handbook provides information for persons who are preparing to take a test for certification in the plastics industry. The nine sections of the handbook provide information on the following: (1) the mission of the Society of the Plastics Industry and the value of the National Certification in Plastics; (2) tips on preparing for the exam; (3)…

Large-scale testing is dominated by the multiple-choice question format. Widespread use of the format is due, in part, to the ease with which multiple-choice items can be scored automatically. This paper examines automatic scoring procedures for an alternative item type: figural response. Figural response items call for the completion or…

This paper describes findings from two studies involving optional use of calculators on Scholastic Aptitude Test (SAT) mathematical items. The first study looked at the effects of calculator use on estimates of item difficulty. The second study looked at the effect of calculator use on equating results from an anchor test design. Study 1,…

In response to the need for internationally comparable student achievement data, the Organisation for Economic Cooperation and Development (OECD) launched the Programme for International Student Assessment (PISA). PISA represents a commitment by the members of OECD to monitor the outcomes of education systems in terms of student achievement. This…

The Delaware Student Testing Program (DSTP) is designed to assess progress toward the Delaware Content Standards. Every year a certain number of items are removed from the test and then selected for public release. This booklet contains multiple-choice and short-answer (constructed response) items released from the 2000 or 2001 administration of…

When a test is translated from a source language to a target language, the result is generally not two psychometrically equivalent tests. If the sources of differential item functioning (DIF) across languages could be predicted, this could have important implications for test adaptations. This study examined item revision as a tool for improving…

An instrument to evaluate the effectiveness of constructivist teaching methods, the Constructivist Teaching Inventory (CTI), was developed and assessed, the assessment focusing on the validity and reliability of the instrument. A pool of items measuring the presence of identified elements of constructivist teaching was developed; items were…

A method of item pool design is proposed that uses an optimal blueprint for the item pool calculated from the test specifications. The blueprint is a document that specifies the attributes that the items in the computerized adaptive test (CAT) pool should have. The blueprint can be a starting point for the item writing process, and it can be used…