Rasch/Guttman Scenario (RGS) Scales: A Methodological Framework.

Area of Science:

• Psychometrics
• Educational Measurement
• Scale Development

Background:

• Rasch/Guttman Scenario (RGS) scales provide interpretable descriptions of individuals' hierarchical construct levels.
• The unique scenario item format offers actionable, content-relevant feedback on respondent status, intervention design, and longitudinal changes.

Purpose of the Study:

• To present a comprehensive seven-step methodological framework for the development of RGS scales.
• To discuss potential challenges encountered during RGS scale development.
• To propose future research directions for RGS scale methodology.

Main Methods:

• Development of a seven-step methodological framework for RGS scale construction.
• Analysis of challenges and future research avenues in RGS scale application.

Main Results:

• A structured seven-step framework for creating RGS scales is detailed.
• Identified potential obstacles and areas for future investigation in RGS scale development and application.

Conclusions:

• The proposed framework facilitates the creation of RGS scales with interpretable feedback.
• Addressing identified challenges and pursuing future research will enhance the utility of RGS scales.