Tutorial materials | Summer school

Psychometric modelling of Patient-Reported Outcome Measures (PROMs)

Introduction to advanced psychometric modelling of self-reported questionnaires, specifically concentrating on Patient-Reported Outcome Measures (PROMs). Classical and modern views and conceptions of reliability, validity and sensitivity of clinical measures using multiple approaches and methods, including advanced multidimensional modelling with Item Response Theory (IRT). Software packages used for this course are R, Mplus, IRTscore and DIFAS.

 

The tutorial materials below can be used for learning psychometric principles involved in development, assessment, analysis and interpretation of data arising from self-report questionnaires. Each topic includes a brief statement of level / knowledge /software requirements, workshop slides, and materials for practical exercises.

 

Session 1. Introduction to health-related Quality of Life measures. Level: beginner. Download slides here.

 

Session 2. Concepts of validity, reliability, sensitivity and generalisability. Level: beginner. Download slides and materials for a practical exercise. Software for practicals: R.

 

Session 3. Principles of measurement scales. Level: beginner. Download slides here

 

Session 4. Developing a questionnaire. Level: beginner. Download slides and materials for a practical exercise. No software is required for the exercise.

 

Session 5. Structure and quality of scales. Level: intermediate. Download slides here.

 

Session 6. Factor analysis and basics of structural equation modelling. Level: intermediate. Download slides and materials for a practical exercise. Software for practicals: Mplus (download simple reference for Mplus).

 

Session 7. Unidimensional IRT models for binary data. Level: intermediate. Download slides and materials for a practical exercise. Software for practicals: R.

 

Session 8. Unidimensional IRT models for ordinal data. Level: intermediate to advanced. Download slides and materials for a practical exercise. Software for practicals: R.

 

Session 9. Introduction to Multidimensional IRT models. Level: advanced. Download slides and materials for a practical exercise. Software for practicals: Mplus.

 

Session 10. Test scoring - classical, IRT, and approximated IRT methods. Level: intermediate to advanced. Download slides and materials for a practical exercise. Software for practicals: R and IRTScore (download IRTScore here

 

Session 11. Measurement precision. Level: intermediate to advanced. Level: intermediate to advanced. Download slides and materials for a practical exercise. Software for practicals: R.

 

Session 12. Computer Adaptive Testing (CAT). Level: intermediate to advanced. Download slides and materials for a practical exercise. Software for practicals: R.

 

Session 13. Measurement invariance and DIF. Level: advanced. Level: intermediate to advanced. Download slides and materials for a practical exercise. Software for practicals: R and DIFAS (download simple reference for DIFAS).