 Test-retest repeatability is evaluated statistically by the agreement of repeated tests. Cronbach s coefficient alpha is calculated to assess internal consistency. Content validity is assessed by floor and ceiling effects. Criterion validity is tested by correlation to the modified AOFAS foot and ankle scale and 15-D. Construct validity is assessed by creating five hypotheses for convergent validity and one for discriminate. Responsiveness is assessed by calculating the effect size and the standardized effect mean. 