Journal ArticleDOI
Assessing the clinical significance of single items relative to summated scores.
Jeff A. Sloan,Neil K. Aaronson,Joseph C. Cappelleri,Diane L. Fairclough,Claudette Varricchio +4 more
- Vol. 77, Iss: 5, pp 479-487
TLDR
The strengths and weaknesses of single items and summated scores (from multiple items) as QOL measures are described and the use of single global measures vs multiple subindices as measures of QOL is addressed.Abstract:
How many items are needed to measure an individual's quality of life (QOL)? This article describes the strengths and weaknesses of single items and summated scores (from multiple items) as QOL measures. We also address the use of single global measures vs multiple subindices as measures of QOL. The primary themes that recur throughout this article are the relationships between well-defined research objectives, the research setting, and the choice single item vs summated scores to measure QOL. The conceptual framework of the study, the conceptual fit with the measure, and the purpose of the assessment should all be considered when choosing a measure of QOL. No "gold standard" QOL measure can be recommended because no "one size fits all." Single items have the advantage of simplicity at the cost of detail. Multiple-item indices have the advantage of providing a complete profile of QOL component constructs at the cost of increased burden and of asking potentially irrelevant questions. The 2 types of indices are not mutually exclusive and can be used together in a single research study or in the clinical setting.read more
Citations
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Journal ArticleDOI
Core outcome domains for chronic pain clinical trials: IMMPACT recommendations.
Dennis C. Turk,Robert H. Dworkin,Robert R. Allen,Nicholas Bellamy,Nancy A. Brandenburg,Daniel B. Carr,Charles S. Cleeland,Raymond A. Dionne,John T. Farrar,Bradley S. Galer,David J. Hewitt,Alejandro R. Jadad,Nathaniel P. Katz,Lynn D. Kramer,Donald C. Manning,Cynthia McCormick,Michael P. McDermott,Patrick J. McGrath,Steve Quessy,Bob A. Rappaport,James P. Robinson,Mike A. Royal,Lee S. Simon,Joseph W. Stauffer,Wendy M. Stein,Jane Tollett,James Witter +26 more
TL;DR: In this article, the authors provide recommendations for the core outcome domains that should be considered by investigators conducting clinical trials of the efficacy and effectiveness of treatments for chronic pain, and develop a core set of outcome domains would facilitate comparison and pooling of d
Journal ArticleDOI
Topical Review and RecommendationsCore outcome measures for chronic pain clinical trials: IMMPACT recommendations
Robert H. Dworkin,Dennis C. Turk,John T. Farrar,Jennifer A. Haythornthwaite,Mark P. Jensen,Nathaniel P. Katz,Robert D. Kerns,Gerold Stucki,Robert R. Allen,Nicholas Bellamy,Daniel B. Carr,Julie Chandler,Penney Cowan,Raymond A. Dionne,Bradley S. Galer,Sharon Hertz,Alejandro R. Jadad,Lynn D. Kramer,James Witter +18 more
Book
Measurement in Medicine: A Practical Guide
TL;DR: This chapter discusses the development of a measurement instrument, field testing - item reduction and data structure, and systematic reviews of measurement properties Index.
Journal ArticleDOI
Comparison of the minimally important difference for two health state utility measures: EQ-5D and SF-6D.
Stephen J Walters,John Brazier +1 more
TL;DR: There is evidence that the MID for these two utility measures are not equal and differ in absolute values.
Journal ArticleDOI
Guidelines for choosing between multi-item and single-item scales for construct measurement: a predictive validity perspective
Adamantios Diamantopoulos,Marko Sarstedt,Marko Sarstedt,Christoph Fuchs,Petra Wilczynski,Sebastian Kaiser +5 more
TL;DR: In this article, a comprehensive simulation study is conducted aimed at identifying the influence of different factors on the predictive validity of single versus multi-item measures, such as the average inter-item correlations in the predictor and criterion constructs, the number of items measuring these constructs, as well as the correlation patterns of multiple and single items between the predictor between the criterion constructs.
References
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Journal ArticleDOI
The European Organization for Research and Treatment of Cancer QLQ-C30: A Quality-of-Life Instrument for Use in International Clinical Trials in Oncology
Neil K. Aaronson,Sam H Ahmedzai,Bengt Bergman,Monika Bullinger,Ann Cull,Nicole Duez,Antonio Filiberti,Henning Flechtner,Stewart B. Fleishman,Johanna C. J. M. de Haes,Stein Kaasa,M. Klee,David Osoba,Darius Razavi,Peter B. Rofe,Simon Schraub,Kommer C. A. Sneeuw,Marianne Sullivan,Fumikazu Takeda +18 more
TL;DR: The reliability and validity of the EORTC QLQ-C30 questionnaire were highly consistent across the three language-cultural groups studied: patients from English-speaking countries, Northern Europe, and Southern Europe.
Book ChapterDOI
Diagnostic and Statistical Manual of Mental Disorders (DSM-IV)
TL;DR: This material was developed by Duke University, funded by the Department of Health and Human Services, Office of the National Coordinator for Health Information Technology under Award Number IU24OC000024.
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The Functional Assessment of Cancer Therapy scale: development and validation of the general measure.
David Cella,David S. Tulsky,G Gray,Bernie Sarafian,E Linn,Amy E. Bonomi,M Silberman,Suzanne B. Yellen,Patsy Winicour,J Brannon +9 more
TL;DR: The FACT-G meets or exceeds all requirements for use in oncology clinical trials, including ease of administration, brevity, reliability, validity, and responsiveness to clinical change.
Book
Measuring Health: A Guide to Rating Scales and Questionnaires
Ian McDowell,Claire Newell +1 more
TL;DR: The theory and the leading methods of measurement, all of which rely on subjective judgments in questionnaires and rating scales are described, showing readers how to select the most suitable one, apply it, and score the results.
Related Papers (5)
The European Organization for Research and Treatment of Cancer QLQ-C30: A Quality-of-Life Instrument for Use in International Clinical Trials in Oncology
Neil K. Aaronson,Sam H Ahmedzai,Bengt Bergman,Monika Bullinger,Ann Cull,Nicole Duez,Antonio Filiberti,Henning Flechtner,Stewart B. Fleishman,Johanna C. J. M. de Haes,Stein Kaasa,M. Klee,David Osoba,Darius Razavi,Peter B. Rofe,Simon Schraub,Kommer C. A. Sneeuw,Marianne Sullivan,Fumikazu Takeda +18 more