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  • Book
    Peter M. Fayers and David Machin.
    Principles of measurement scales
    Developing a questionnaire
    Scores and measurement : validity, reliability, sensibility
    Multi-item scales
    Factor analysis and structural equation modelling
    Item response theory and differential item functioning
    Item banks, item linking, and computer-adaptive tests
    Choosing and scoring questionnaires
    Clinical trials
    Samples sizes
    Cross-sectional analysis
    Exploring longitudinal data
    Modelling longitudinal data
    Missing data
    Practical and reporting issues
    Death and quality-adjusted survival
    Clinical interpretation
    Biased reporting and response shift
    Digital Access Wiley 2016