Rasch analysis was used to illustrate the usefulness of item-level analyses for evaluating a common therapy outcome measure of general clinical distress, the Symptom Checklist-90Revised (SCL-90-R, Derogatis, 1994). Using complementary therapy research samples, we found that the instrument’s 5-point rating scale exceeded clients’ ability to make reliable discriminations and could be improved by ...

In many countries, an athlete’s performance at sporting competitions is often used as part of the selection criteria for entry into college. These criteria could be biased depending upon the procedures utilized by the authorities in a particular country. The purpose of this study was to calibrate, by using the Rasch rating scale model, the judge-based weights associated with the different quali...

Measuring passenger satisfaction presents several difficulties since customer satisfaction in the public transport sector is subject to different conditions which are different than those that affect other sectors. In this work, a strategy based on Rasch analysis and the Analysis of Means (ANOM) is proposed. This study is based on the idea that the Rasch rating scale model gives ‘sufficient sta...

This study examined the influence of rater training and scoring context on the manifestation of rater effects in a group of trained raters. 120 raters participated in the study and experienced one of three training/scoring contexts: (a) online training in a distributed scoring context, (b) online training in a regional scoring context, and (c) stand-up training in a regional context. After trai...

Necessary and sufficient relations between measurement objectivity and psychometric models for data in more than two categories are reviewed and extended. Rasch (1960, 1961) and others prove the sufficiency of Rasch models for objectivity. Douglas and Wright (1986) derive the model necessary for objectivity for data in two categories. Rasch (1968) outlines a proof of the model necessary for obs...

The purpose of this study was to evaluate the psychometric properties of a newly developed instrument intended to measure faculty competence as it pertains to their role as advisors, particularly in medical and professional programs. A total of 166 students completed the Faculty Advisor’s Skills and Behaviors Inventory (FASBI). The psychometric properties of the FASBI were evaluated using the R...

This paper reports the partial results of a study using the Hybrid Behaviourally Anchored Rating Scale (Hybrid BARS) to identify the competencies considered essential for effective performance in a university e-learning environment. The competencies were developed in accordance with social constructivist principles and in the context of a Learning Management System. Students and staff at the un...

A study was proposed to determine to what extent a hierarchical structure exists in music and in tests used to measure music ability. The first research question was whether items in the Watkins-Farnum Performance Scale (J. Watkins and S. Farnum, 1954) (WFPS) form a hierarchy, so that early exercises (bars played) are generally easier than later ones. Another question was whether the items in t...

BACKGROUND Self-efficacy is needed for effectuating lifestyle changes, and it is therefore an important target related to health. The purpose of this study was to evaluate the psychometric properties of the General Self-Efficacy Scale (GSE) using Rasch analysis in a sample of adults with morbid obesity. METHODS A convenience sample of adults with morbid obesity was recruited from patient educ...