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Outcome measures: Constructs, measures and measurement scales
| Construct | Measure | Measurement Scale |
|---|---|---|
| Chiropractor outcomes | ||
| Adherence | Single indicators | Ordinal |
| Composite | Count of indicators reaching “success” threshold | |
| Patient Outcomes | ||
| Pain | Visual analogue scale | 11-points, continuous |
| Disability | Neck disability index | Scale range and subscales:10 items in total, each item is scored from 0-5 (“0” = no disability and “5” = full disability) for a total of 50 |
