- Independent Online Learning Module
Learn about latent variable methods for examining measurement invariance when comparing patient-reported outcomes between groups and over time.
This learning module introduces latent variable methods for examining measurement invariance between groups and over time, and the related concepts of differential item functioning and response shift. The learning module provides a basic introduction with expository analyses and syntax for implementing:
- Differential item functioning methods to compare different people
- Response shift methods to assess change over time
The module is meant as an initial introduction for applied researchers and analysts to become familiar with statistical methods for testing psychometric validity of using PROs to compare different people and assessing change over time.
Note: this is a preliminary version of the learning module that is in process of ongoing development, with plans for further refinement and new resources to be added. Please help us to evaluate and improve the resources by completing a short survey after reviewing the module: Measurement Invariance Methods for PROs Learning Module Feedback Survey
Data, Syntax and Resources
The learning module includes expository analyses with access to data file, annotated MPlus input and output files, software package information for SAS and R and resources.