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Measurement in medicine : a practical guide / / Henrica C.W. de Vet, Caroline B. Terwee, Lidwine B. Mokkink, Dirk L. Knol
| Measurement in medicine : a practical guide / / Henrica C.W. de Vet, Caroline B. Terwee, Lidwine B. Mokkink, Dirk L. Knol |
| Autore | Vet Henrica C. W. de |
| Pubbl/distr/stampa | Cambridge : , : Cambridge University Press, , 2011 |
| Descrizione fisica | 1 online resource (x, 338 pages) : digital, PDF file(s) |
| Disciplina | 610.72/4 |
| Altri autori (Persone) | VetHenrica C. W. de |
| Collana | Practical guides to biostatistics and epidemiology |
| Soggetto topico |
Medicina clínica - Mètodes estadístics
Assistència sanitària - Avaluiació - Metodologia Psicometria Medical care - Evaluation - Methodology Clinical medicine - Statistical methods |
| ISBN |
9780511996214
1107212987 113913986X 1283316552 9786613316554 1139139096 1139144871 1139140671 1139137549 0511996217 1139141554 |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
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
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 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 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 4.4.3.1 Step 3: rotation |
| Record Nr. | UNINA-9910781959603321 |
Vet Henrica C. W. de
|
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| Cambridge : , : Cambridge University Press, , 2011 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Measurement in medicine : a practical guide / / Henrica C.W. de Vet ... [et al.]
| Measurement in medicine : a practical guide / / Henrica C.W. de Vet ... [et al.] |
| Edizione | [1st ed.] |
| Pubbl/distr/stampa | Cambridge, : Cambridge University Press, 2011 |
| Descrizione fisica | 1 online resource (x, 338 pages) : digital, PDF file(s) |
| Disciplina | 610.72/4 |
| Altri autori (Persone) | VetHenrica C. W. de |
| Collana | Practical guides to biostatistics and epidemiology |
| Soggetto topico |
Medical care - Evaluation - Methodology
Clinical medicine - Statistical methods |
| ISBN |
9780511996214
1107212987 113913986X 1283316552 9786613316554 1139139096 1139144871 1139140671 1139137549 0511996217 1139141554 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
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
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 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 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 4.4.3.1 Step 3: rotation |
| Record Nr. | UNINA-9910823005803321 |
| Cambridge, : Cambridge University Press, 2011 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||