Fibromyalgia & musculoskeletal pain
Measurement properties of the decisional conflict scale in people living with chronic non-cancer pain: a secondary analysis of the DECIDE-PAIN pan-Canadian survey
Authors' conclusion
This secondary analysis of a panCanadian survey provides evidence of the measurement properties of the Decisional Conflict Scale in people living with chronic non-cancer pain.
Study context
- Population
- People living with chronic non-cancer pain, pan-Canadian survey; English version of the 16-item Decisional Conflict Scale
- Participants
- 1,103 respondents
- Primary endpoint
- Measurement properties of the Decisional Conflict Scale: score distribution (ceiling/floor effects), readability, internal consistency, structural validity of a hypothesised five-factor model, convergent and discriminant validity, measurement invariance (age, sex, health literacy, education)
Methodological detailsmeasurement properties study (COSMIN-informed)
- Measurement properties study (COSMIN-informed)
Primary result
As reported in the abstract
- Ceiling effect at item level; no ceiling or floor effects at subscale and total score levels
- Readability scores below the sixth-grade reading level
- All internal consistency results above the a priori threshold
- Confirmatory factor analysis: good model fit
- Good convergent but poor discriminant validity
- Measurement invariance confirmed for age, sex, health literacy and education
Original publication
Measurement properties of the decisional conflict scale in people living with chronic non-cancer pain: a secondary analysis of the DECIDE-PAIN pan-Canadian survey. Semin Arthritis Rheum. Published 3 October 2025. doi:10.
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