Assessing Differential Bundle Functioning Using Meta Analysis
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Assessing Differential Bundle Functioning Using Meta Analysis
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Author : Lanrong Li
language : en
Publisher:
Release Date : 2021
Assessing Differential Bundle Functioning Using Meta Analysis written by Lanrong Li and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with Educational tests and measurements categories.
When developing a test, it is essential to ensure that the test is free of items with differential item functioning (DIF). DIF occurs when examinees of equal ability, but from different examinee subgroups, have different chances of getting the item correct. According to the multidimensional perspective, DIF occurs because the test measures more than one dimension, and examinees from different groups have unequal distributions on the secondary dimension(s) conditional on the primary dimension measured by the test. Often, more than one item is measured by the secondary dimension. The DIF of individual items may be hard to detect statistically but can accumulate to an unacceptable degree at the item cluster/bundle level. Differential bundle functioning (or DBF) occurs when examinees from different groups have unequal expected scores on an item bundle. Research on DBF has the potential to reveal the mechanisms underlying DIF and DBF. The simultaneous item bias test (SIBTEST, Shealy and Stout, 1993) has been developed to assess DIF and DBF. However, an unresolved issue is the lack of effect size for DBF, making it difficult to assess the amount of DBF within and between tests. Additionally, few procedures can be used to assess both DIF and DBF, which may be one of the reasons why DBF is less frequently examined than DIF among practitioners. In this study, I propose using meta-analysis techniques to synthesize differential item functioning (DIF) effect sizes and to assess differential bundle functioning (DBF). The test of nonzero average DIF can be used to test for the existence of DBF. Also, the weighted average DIF can be used as an average-based effect size, and the standard deviation of DIF in an item bundle can be used as a variance-based DBF effect size. A Monte Carlo simulation study was conducted to assess the performance of the proposed effect size for DBF and to compare the test of nonzero average DIF in an item bundle with that of a DBF test using SIBTEST. I used three DIF procedures (id est, the Mantel-Haenszel procedure, the logistic-regression procedure, and the SIBTEST procedure) to obtain DIF estimates and then applied the random-effects model to the DIF estimates. Seven factors, including sample size, between-group difference in the primary dimension, between-group difference in the secondary dimension, the correlation between the two dimensions, sample-size ratio between the focal and the reference groups, item-bundle length, and the presence of guessing in the item response, were manipulated in the simulation. When the two dimensions were moderately correlated or when there was no impact, the proposed DBF effect size based on the SIBTEST DIF procedure was essentially unbiased, and the proposed DBF tests based on the three DIF procedures had Type-I error and power rates comparable to those of the SIBTEST DBF test. When there was an impact and the two dimensions were not correlated or weakly correlated, the DBF effect sizes from the meta-analysis of DIF indices from the three procedures had upward biases, and the meta-analysis-based DBF tests tended to have inflated Type-I error. The variance-based DBF effect size for the whole test changed with the weighted average-based DBF effect size in the item bundle. The rejection rates of the DBF test, the weighted average-based DBF effect size, and the variance-based DBF effect size were largely determined by the potential for DIF. I discuss the findings and the implications for applied research and point out directions for future research.
Exploring Differential Item Functioning On Science Achievement Tests
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Author : Laura S. Hamilton
language : en
Publisher:
Release Date : 1998
Exploring Differential Item Functioning On Science Achievement Tests written by Laura S. Hamilton and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Achievement tests categories.
Measurement Tools For Clinical Assessment Characterization And Neurorehabilitation Of Parkinson S Disease
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Author : Carmen Rodriguez-Blazquez
language : en
Publisher: Frontiers Media SA
Release Date : 2021-08-17
Measurement Tools For Clinical Assessment Characterization And Neurorehabilitation Of Parkinson S Disease written by Carmen Rodriguez-Blazquez and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-08-17 with Medical categories.
Dr. Carmen Rodriguez-Blazquez received support from AbbVie for attending two scientific congresses. Prof. Mayela Rodriguez-Violante received honorariums from Medtronic and Everneuropharma.
Current Index To Journals In Education
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Author :
language : en
Publisher:
Release Date : 1999
Current Index To Journals In Education written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Education categories.
Basic Methods Handbook For Clinical Orthopaedic Research
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Author : Volker Musahl
language : en
Publisher: Springer
Release Date : 2019-02-01
Basic Methods Handbook For Clinical Orthopaedic Research written by Volker Musahl and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-02-01 with Medical categories.
This book is designed to meet the needs of both novice and senior researchers in Orthopaedics by providing the essential, clinically relevant knowledge on research methodology that is sometimes overlooked during training. Readers will find a wealth of easy-to-understand information on all relevant aspects, from protocol design, the fundamentals of statistics, and the use of computer-based tools through to the performance of clinical studies with different levels of evidence, multicenter studies, systematic reviews, meta-analyses, and economic health care studies. A key feature is a series of typical case examples that will facilitate use of the volume as a handbook for most common research approaches and study types. Younger researchers will also appreciate the guidance on preparation of abstracts, poster and paper presentations, grant applications, and publications. The authors are internationally renowned orthopaedic surgeons with extensive research experience and the book is published in collaboration with ISAKOS.
Cse Report
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Author :
language : en
Publisher:
Release Date : 1998
Cse Report written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Education categories.
Southern African Linguistics And Applied Language Studies
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Author :
language : en
Publisher:
Release Date : 2009
Southern African Linguistics And Applied Language Studies written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with African languages categories.
Assessments Treatments And Modeling In Aging And Neurological Disease
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Author : Colin R. Martin
language : en
Publisher: Academic Press
Release Date : 2021-06-01
Assessments Treatments And Modeling In Aging And Neurological Disease written by Colin R. Martin and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-06-01 with Medical categories.
Assessments, Treatments and Modeling in Aging and Neurological Disease: The Neuroscience of Aging is a comprehensive reference on the diagnosis and management of neurological aging and associated disorders. The book discusses the mechanisms underlying neurological aging and provides readers with a detailed introduction to the aging of neural connections and complexities in biological circuitries, as well as the interactions between genetics, epigenetics and other micro-environmental processes. It also examines pharmacological and non-pharmacological interventions of age-related conditions that affect the brain, including Alzheimer's, stroke and multiple sclerosis. - Provides the most comprehensive coverage of the broad range of topics related to the neuroscience of aging - Features sections on diagnosis and biomarkers of neurological aging, Alzheimer's and stroke - Contains an abstract, key facts, a mini dictionary of terms, and summary points in each chapter - Focuses on neurological diseases and conditions linked to aging, environmental factors and clinical recommendations - Includes more than 500 illustrations and tables
Conn S Current Therapy 2024 E Book
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Author : Rick D. Kellerman
language : en
Publisher: Elsevier Health Sciences
Release Date : 2023-11-29
Conn S Current Therapy 2024 E Book written by Rick D. Kellerman and has been published by Elsevier Health Sciences this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-11-29 with Medical categories.
**Selected for Doody's Core Titles® 2024 with "Essential Purchase" designation in Family Medicine**Trusted by clinicians for more than 75 years, Conn's Current Therapy presents today's evidence-based information along with the personal experience and discernment of expert physicians. The 2024 edition is a helpful resource for a wide range of healthcare providers, including primary care physicians, subspecialists, and allied health professionals, providing current treatment information in a concise yet in-depth format. Nearly 350 topics have been carefully reviewed and updated to bring you state-of-the-art content in even the most rapidly changing areas of medicine. - Offers personal approaches from recognized leaders in the field, covering common complaints, acute diseases, and chronic illnesses along with the most current evidence-based clinical management options. - Follows a consistent, easy-to-use format throughout, with diagnosis, therapy, drug protocols, and treatment pearls presented in quick-reference boxes and tables for point-of-care answers to common clinical questions. - Incorporates electronic links throughout the text that connect the reader to apps and clinical prediction tools that can easily be accessed in practice. - Features thoroughly reviewed and updated information from multiple expert authors and editors, who offer a fresh perspective and their unique personal experience and judgment. - Provides current drug information thoroughly reviewed by PharmDs. - Features nearly 300 images, including algorithms, anatomical illustrations, and photographs, that provide useful information for diagnosis.
Illustrated Orthopedic Physical Assessment
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Author : Ronald C. Evans
language : en
Publisher: Elsevier Health Sciences
Release Date : 2009-02-17
Illustrated Orthopedic Physical Assessment written by Ronald C. Evans and has been published by Elsevier Health Sciences this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-02-17 with Medical categories.
Logically organized with comprehensive coverage, this newly revised third edition prepares you to choose the right orthopedic tests, accurately assess any patient, and arrive at a clear diagnosis. Trusted for both its depth of coverage and its accessible, accurate information, it features gamuts, clinical pearls, and cross-reference tables for quick and easy reference. Now in brilliant full color, with all new photos of every test, it's even more visually appealing, and illustrates common conditions and procedural tests more effectively than ever before. This edition offers a fresh look at testing for orthopedic conditions, with detailed text that explains the key moves of each test, its alternate names, and the appropriate reporting statement. Extensive cross-referencing ensures that you can easily find the right test for efficient and effective practice, and protocol charts guide you through the examination process step by step. - Chapters are logically organized by region, and tests within each chapter are arranged alphabetically, so you can find the information you need in seconds! - Each test begins with a brief discussion of basic anatomy, then moves into a description of the actual procedure and ends with next-step directives. - Critical Thinking questions at the end of each chapter help you apply what you've learned to clinical practice. - Orthopedic Gamuts provide summaries of key points in a concise list – numerous gamuts within each chapter help you master material quickly and easily. - Clinical Pearls share the author's knowledge gained through years of clinical experience, helping you avoid common misdiagnoses. - Cross-reference tables offer at-a-glance guidance on which tests should be used to diagnose particular diseases, for maximum accuracy and efficiency in practice. - Each chapter begins with an index of tests for easy reference, and axioms that remind you of elemental information, such as how painful certain maneuvers may be or the extent of some body parts' range. - Contains a chapter on malingering (non-organically-based complaints), helping you investigate and determine the root cause of complaint, whether due to injury, for psychological reasons, or an attempt to feign injury for various purposes, such as for improper receipt of worker's compensation. - Companion DVD contains video footage of Dr. Evans performing and explaining each assessment test in the book. - Full-color photographs demonstrate how to perform 237 orthopedic tests! - At the Viewbox feature contains high-quality radiographs that depict various pathologies, as well as musculature and other anatomy that can't be shown photographically.