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University of Tennessee, Knoxville

Educational Assessment, Evaluation, and Research

Item Response Theory

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Full-Text Articles in Education

Development And Validation Of The Statistics Assessment Of Graduate Students, Dammika Lakmal Walpitage Dec 2016

Development And Validation Of The Statistics Assessment Of Graduate Students, Dammika Lakmal Walpitage

Doctoral Dissertations

This study developed the Statistics Assessment of Graduate Students (SAGS) instrument, and established its preliminary item characteristics, reliability, and validity evidence. Even though there are limited number of assessments available for measuring different aspects of statistical cognition, these previously available assessments have numerous limitations. The SAGS instrument was developed using Rasch modeling approach to create a new measure of statistical research methodology knowledge of graduate students in education and other behavioral and social sciences. Thirty-five multiple-choice questions were written with stems representing applied research situations and response options distinguishing between appropriate use of various statistical tests or procedures. A focus …


Development Of The Biostatistics And Clinical Epidemiology Skills Assessment For Medical Residents, Patrick Brian Barlow May 2014

Development Of The Biostatistics And Clinical Epidemiology Skills Assessment For Medical Residents, Patrick Brian Barlow

Doctoral Dissertations

This study developed the Biostatics and Clinical Epidemiology Skills (BACES) assessment, and established its preliminary item characteristics and validity evidence. Unlike previous instruments, the BACES assessment was developed and tested using an item response theory (IRT) approach to measurement to create a new, adaptive biostatistics and clinical epidemiology knowledge assessment for graduate medical professionals. Thirty multiple-choice questions were written to focus on interpreting relevant examples of clinical epidemiology and statistical methods. A four person expert panel reviewed these items for content validity. After this review, the BACES assessment was administered to 147 medical residents across three academic medical centers. Results …