A theory and a procedure are presented for estimating a domain parameter and item parameters for test items in a homogeneous domain, such that the combined domain and item parameters account for observed proportions right for each item in a test. (CTM)

Logical estimates of item difficulty made by judges were compared to empirical estimates derived from a test administration. Results indicated substantial correspondence between logical and empirical estimates, and substantial variation among judges. Further, the more elaborate the system used by judges to make estimates, the more accurate the…

Two theorems of unidimensional item response theory are extended to describe observable item response distributions when there is conditional independence between but not necessarily within item bundles. An item bundle is a small group of multiple-choice items sharing a common reading passage or a group of items sharing distractors. (SLD)

Comparability of two forms of the CCTST is evaluated. Data are compared with a previously reported study; relationships to comparable tests are considered. Evidence indicates low internal-consistency reliability estimates, a lack of comparability, and poor construct validity for Forms A and B of the CCTST. (Author/EMK)

Investigates differential item functioning (DIF) across two different broad language groupings, Asian and European, in a speaking test in which the test takers' responses were rated polytomously. Data were collected from 1038 nonnative speakers of English from France, Hong Kong, Japan, Spain, Switzerland, and Thailand who took the SPEAK test in…

Reports on the potential problems in scoring responses to sequencing tests, the development of a computer program to overcome these difficulties, and an exploration of the value of scoring procedures. (Author/VWL)

This study examined the psychometric properties of the Sexual Orientation Counselor Competency Scale (SOCCS), an instrument that measures the attitudes, skills, and knowledge of counselors who work with lesbian, gay, and bisexual individuals. Internal consistency of the SOCCS was 0.90, and 1-week test-retest reliability was 0.84. Criterion,…

In this study we investigated the effects of the average signed area (ASA) between the item characteristic curves of the reference and focal groups and three test purification procedures on the uniform differential item functioning (DIF) detection via the Mantel-Haenszel (M-H) method through Monte Carlo simulations. The results showed that ASA,…

Differential item functioning (DIF) analyses are a routine part of the development of large-scale assessments. Less common are studies to understand the potential sources of DIF. The goals of this study were (a) to identify gender DIF in a large-scale science assessment and (b) to look for trends in the DIF and non-DIF items due to content,…

The paper describes the adaptation of the Adolescent version of the Alcohol Expectancy Questionnaire (AEQ-A) for university students in Peru. 672 male and female university students enrolled in the first years at a private university in Peru completed the AEQ-A translated into Spanish. All 90 items were scored on 5-point rating scales. A principal…

Women's autonomy has long been a central concern for researchers examining the social position of women in developing countries. However, little emphasis has been placed on the measurement of autonomy, despite its importance for assessing the validity of comparative research. In this research, we use confirmatory factor analyses to determine (1)…

Performance on a wide variety of memory tasks can be hypothesized to be influenced by processes associated with controlling the contents of memory. In this project 328 adults ranging from 18 to 93 years of age performed six tasks (e.g., multiple trial recall with an interpolated interference list, directed forgetting, proactive interference, and…

A model of identity formation comprising four structural dimensions (Commitment Making, Identification with Commitment, Exploration in Depth, and Exploration in Breadth) was developed through confirmatory factor analysis. In a sample of 565 emerging adults, this model provided a better fit than did alternative two- and three-dimensional models,…

Not all policy questions can be addressed by social experiments. Nonexperimental evaluation methods provide an alternative to experimental designs but their results depend on untestable assumptions. This paper presents evidence on the reliability of propensity score matching (PSM), which estimates treatment effects under the assumption of…

In order to teach individuals with developmental disabilities to request stimuli they are motivated to obtain (mand), it is often necessary to initially deliver the item requested immediately and frequently. This may result in an undesirably high rate of mands that is impractical to maintain. The purpose of the current investigation was to extend…