Psychometric properties of selected tests in patients with lumbar spinal stenosis.

Background Context: The psychometric properties of many outcome tools commonly used with patients with lumbar spinal stenosis have yet to be examined.

Purpose: Examine the test-retest reliability, responsiveness, and minimum levels of detectable and clinically important differences for several outcome measures in a cohort of patients with lumbar spinal stenosis.

Study Design/setting: Cohort secondary analysis of a randomized clinical trial of patients with lumbar spinal stenosis receiving outpatient physical therapy.