The purpose of our study was the development and validation of a modified electronic key feature exam of clinical decision-making skills for undergraduate medical students. Therefore, the reliability of the test (15 items), the item difficulty level, the item-total correlations and correlations to other measures of knowledge (40 item MC-test and 580 items of German MC-National Licensing Exam, P...

This study addresses the relationship between item response time and item accuracy (i.e., the response time accuracy correlation, RTAC) in figural matrices tests. The dual processing account of response time effects predicts negative RTACs in tasks that allow for relatively automatic processing and positive RTACs in tasks that require controlled processing. Contrary to these predictions, severa...

The Pediatric Evaluation of Disability Inventory-Computer Adaptive Test is an alternative method for describing the adaptive function of children and youth with disabilities using a computer-administered assessment. This study evaluated the performance of the Pediatric Evaluation of Disability Inventory-Computer Adaptive Test with a national sample of children and youth with autism spectrum dis...

OBJECTIVE To develop a comprehensive measure of Early Physical Functioning (EPF) post-stroke quantified through Rasch analysis and conceptualized using the International Classification of Functioning Disability and Health (ICF). DESIGN An observational cohort study. SUBJECTS A cohort of 262 subjects (mean age 71.6 (standard deviation 12.5) years) hospitalized post-acute stroke. METHODS Fu...

OBJECTIVE To validate the dimensionality, hierarchical properties, and reliability of the Frenchay Activities Index. DESIGN Self-report survey of patients with stroke. PATIENTS A total of 127 patients provided 254 observations before and after treatments. METHODS Multidimensional Rasch model was conducted. RESULTS The 2-factor model showed the significantly smallest deviance and fitted ...

Reasoning Test The ART was developed by Embretson (1995) using the cognitive design system approach. ART items are matrix completion problems. Matrix completion problems appear on a variety of intelligence and ability tests. They are considered a stable measure of fluid intelligence (Raven, 1965). Construct Validity and Cognitive Diagnostic Assessment 133 Embretson (1995, 1998) further develope...

Abstract Estimates of reliability by traditional estimators are deflated, because the item-total or item-score correlation ( Rit ) principal component factor loading ? i embedded in seriously deflated. Different optional that can replace and compared this article. Simulations show such as polychoric R PC ), gamma G dimension-corrected 2 attenuation-corrected AC eta E reflect true without any lo...

BACKGROUND A need for improved patient safety, quality of care, and accountability has prompted the development of competency-based educational processes. Assessment tools related to bronchoscopy training, however, have not yet been developed or validated. PURPOSES To determine whether 25 multiple-choice questions (MCQs) extracted from the free, Web-based Essential Bronchoscopist (EB) learnin...

BACKGROUND AND PURPOSE Chronic hemiparetic patients often retain the ability to manage activities requiring both hands, either through the use of the affected arm or compensation with the unaffected limb. A measure of this overall ability was developed by adapting and validating the ABILHAND questionnaire through the Rasch measurement model. ABILHAND measures the patient's perceived difficulty ...

In this article, we develop and study methods for evaluating forecasters and forecasting questions in dynamic environments. These methods, based on item response models, are useful in situations where items vary in difficulty, and we wish to evaluate forecasters based on the difficulty of the items that they forecasted correctly. In addition, the methods are useful in situations where we need t...