Studies suggest that enjoyment, perceived benefits and perceived barriers may be important mediators of physical activity. However, the psychometric properties of these scales have not been assessed using Rasch modeling. The purpose of this study was to use Rasch modeling to evaluate the properties of three scales commonly used in physical…

Item bias is a major threat to measurement validity. Methods for detecting differential item functioning (DIF) are now commonly used to identify potentially biased items. DIF detection methods for dichotomous items are well developed, but those for ordinal items are less well developed. In this article, the authors compare four methods for…

English language learners with disabilities (ELLWD) face many challenges in their academic career. Learning a new language and coping with their disabilities create obstacles in their academic progress. Variables relegating accessibility of assessments for students with disabilities and ELL students may seriously hinder the academic performance of…

Measuring student intelligence has been problematic in the United States since standardized testing first began in the early 1900s. The omnipresence of standardized testing in student populations is illustrated by the most popular contemporary tests which are used by some scholars to advance the notion that intelligence differences between whites…

The current study examines the views of experts in the science of mental abilities about the primacy and uniqueness of "g" and the social implications of ability testing, and compares their responses to the views of a group of non-expert psychologists. Results indicate expert consensus that "g" is an important, non-trivial determinant (or at least…

With the increased focus on issues of diversity and multiculturalism in the United States and abroad, educators and clinicians have become more and more concerned about the feasibility and validity of their assessment instruments and practices for children and adults from nonWhite backgrounds. Many researchers emphasize that when working with…

This report describes the results of two studies designed to evaluate the impact of self-reported mathematics course-taking on performance on SAT mathematics questions measuring new content (Algebra II). A supplemental table and figure are appended.

Oshima, Raju, Flowers, and Slinde (1998) described procedures for identifying sources of differential functioning for dichotomous data using differential bundle functioning (DBF) derived from the differential functioning of items and test (DFIT) framework (Raju, van der Linden, & Fleer, 1995). The purpose of this study was to extend the…

Various classical approaches to evaluating test bias are reviewed, and their conceptual underpinnings are discussed. Bias is examined as it relates to predictive validity, rather than construct validity. One of the first test bias models was developed by T. A. Cleary (1968). Cleary's work with test bias and regression stimulated others to develop…

One hundred and sixty male high school students, half of them Mexican-American and half Anglo, were administered the Wechsler Adult Intelligence Scale (WAIS), Wide Range Achievement Test (WRAT), and Bender Gestalt. Half of each ethnic group was classified by the public schools as learning disabled and half were in regular classes. The WAIS Verbal,…

The realistic competency and activity scales of the Self-Directed Search were revised to learn if women's scores on these scales could be increased without reducing their concurrent and construct validity for men and women. Results indicate the revisions increase women's realistic scores, but fail to affect their high point codes. (Author)

The Vocational Preference Inventory responses from 290 subjects were subjected to a Rasch item analysis, one of a class of latent trait models. After elimination of 22 items which did not fit the model, a sex-free form of the VPI was obtained. (Author)

The use of placement tests can discriminate against people with linguistic styles differing from the population used to norm the test, resulting in significantly lessening both achievement and expectations for many people. (EH)

With respect to the selection of black students for college admission, traditional criteria, such as SAT scores and high school grade point average, have been shown not to be valid predictors of future college performance. Therefore, their continued use raises the question of whether this is a measurement problem or an instance of racism. (EH)

Guidelines for test developers and users are provided to insure that construction and selection of test instruments are conducted fairly. In addition to development and selection, issues of interpretation of scores; provision of information to test takers; and prevention of test bias based on race, gender, or ethnicity are addressed. Twenty-one…