The Rasch Model tests whether questionnaire responses can be read as expressions of one variable that places persons and items on a shared scale. Good statistical fit supports comparable scores but does not show that the items capture the intended construct.
- FamilyTool
- CategoryMeasurement & Assessment Instruments
- DomainEvidence & Evaluation
What these mean
Editorial orientation · Family
Tool
In this series, Tool names the editorial family primarily used to act on, examine, measure or organize communication. It includes instruments, methods, practices, protocols, codes and institutional arrangements. Membership does not certify effectiveness, portability or safe use in every setting.
Editorial orientation · Category
Measurement & Assessment Instruments
Produces measures, scores, profiles or assessments through defined items, observations or measurement rules. The entry identifies what is measured and the conditions governing interpretation.