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Table 1 Outcome measures: Constructs, measures and measurement scales

From: Guideline implementation in the Canadian chiropractic setting: a pilot cluster randomized controlled trial and parallel study

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