APS
2025 APS Annual Convention
Don’t Let Your Likert Scales Grow up to be Visual Analog Scales: Understanding the Relationship between Number of Response Categories and Measurement Error
Subject Area: Methodology
We investigated the optimal number of response categories for Likert and Visual Analog Scales (VAS) using simulations. Reliability plateaus after 4–10 categories; however, when measurement error increases with more response options, reliability declines, and converting Likert items to VAS can drastically decrease reliability.
Chairs & Discussants
- Siqi SunSpeaker
University of Virginia - Karen SchmidtAuthor
University of Virginia - Teague Henry*Author
University of Virginia