Measurement in Medicine : A Practical Guide
Henrica C. W. de Vet
Bok Engelsk 2011 · Electronic books.
| Annen tittel | |
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| Medvirkende | |
| Utgitt | Cambridge : Cambridge University Press , cop. 2011
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| Omfang | 1 online resource (350 p.)
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| Opplysninger | Description based upon print version of record.. - Cover; Title; Copyright; Contents; Preface; 1 Introduction; 1.1 Why this textbook on measurement in medicine?; 1.2 Clinimetrics versus psychometrics; 1.3 Terminology and definitions; 1.4 Scope of measurements in medicine; 1.5 For whom is this book written?; 1.6 Structure of the book; 1.7 Examples, data sets, software and assignments; 2 Concepts, theories and models, and types of measurements; 2.1 Introduction; 2.2 Conceptual models; 2.3 Characteristics of measurements; From diagnosis to outcome measurements; From clinician-based to patient-based measurements. - 3. Choice between a reflective and a formative model4. Cross-cultural adaptation of an item; 5. Use of sum-scores; 4 Field-testing: item reduction and data structure; 4.1 Introduction; 4.2 Examining the item scores; 4.2.1 Missing scores; 4.2.2 Distribution of item scores; 4.3 Importance of the items; 4.4 Examining the dimensionality of the data: factor analysis; 4.4.1 Principles of exploratory factor analysis; 4.4.2 Determining the number of factors; 4.4.2.1 Step 1: correlation of items; 4.4.2.2 Step 2: the number of factors to be extracted; 4.4.3 Rotation and interpreting the factors. - 3.2.3 Purpose of measurement3.3 Choice of measurement method; 3.4 Selecting items; 3.4.1 Getting input for the items of a questionnaire: literature and experts; 3.4.1.1 Literature; 3.4.1.2 Experts; 3.4.1.3 An example of item selection for a patient-reported outcomes instrument; 3.4.1.4 An example of item selection for a non-patient-reported outcomes instrument; Summing up with or without using weights; 3.4.2 Formulating items: first draft; 3.4.3 Things to keep in mind; 3.5 Scores for items; 3.5.1 Scoring options; 3.5.2 Which option to choose?; 3.6 Scores for scales and indexes. - 3.6.1 Summarizing scores in reflective modelsSumming up with or without using weights; 3.6.2 Summarizing scores in formative models; 3.6.3 Weighted scores; 3.6.3.1 How and by who are weights assigned; Judgemental weights; Empirical weights; 3.6.3.2 Preference weighting or utility analysis; 3.6.3.3 Alternative methods; 3.7 Pilot-testing; 3.7.1 Pilot-testing of patient-reported outcomes instruments; 3.7.2 Pilot-testing of non-patient-reported outcomes instruments; 3.8 Summary; Assignments; 1. Definition of a construct; 2. Choice between objective and subjective measurements. - 4.4.3.1 Step 3: rotation. - From objective to subjective measurementsFrom unidimensional to multidimensional characteristics; From observable to non-observable characteristics; 2.4 Conceptual framework: reflective and formative models; 2.5 Measurement theories; 2.5.1 Classical test theory; 2.5.2 Item response theory; 2.6 Summary; Assignments; 1. Outcome measures in a randomized clinical trial; 2. What is the construct?; 3. Item response theory; 3 Development of a measurement instrument; 3.1 Introduction; 3.2 Definition and elaboration of the construct to be measured; 3.2.1 Construct; 3.2.2 Target population. - Provides methods to develop and evaluate measurement instruments in all fields of medicine and quality standards for all measurement properties.
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| Emner | Medical care - Evaluation - Methodology
Analytical, Diagnostic and Therapeutic Techniques and Equipment Behavioral Disciplines and Activities Biomedical Research Vis mer... Clinical Medicine - statistics & numerical data
Diagnosis Diagnostic Techniques and Procedures Disciplines and Occupations Environment and Public Health Epidemiologic Methods. Health Care Health Care Costs Health Care Evaluation Mechanisms Health Care Quality, Access, and Evaluation Health Occupations Health Services Administration Investigative Techniques Mathematics Methods Natural Science Disciplines Outcome Assessment (Health Care) Outcome and Process Assessment (Health Care) Psychiatry and Psychology Psychological Tests Psychometrics Public Health Quality of Health Care Research Science Statistics as Topic Medicine -- Research -- Statistical methods. Medicine. Statistics as Topic -- methods. medisinsk måling diagnoseteknikk statistikk |
| Sjanger | |
| Dewey | |
| ISBN | 9780521118200. - 9780521133852
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