| MEASUREMENT PROPERTIES | |
| Limitations | English only |
| Observations | |
| 1. RELIABILITY | |
| A. Internal Consistency | Tested |
| Cronbach's (Describe) |
Cronbach alpha: 0.973 |
| B. Reliability intraobserver or test-retest | Tested |
| Continuous scores: intraclass correlation coefficient (ICC) Dichotomus: Cohen kappa (Describe) |
kappa (0.94-0.981). Correlation Coefficient 0.71-0.84 |
| C. Reliability interobserver or Measurement error | Not Tested |
| Standard error of measurement (SEM), smallest detectable change (SDC) or Limits of agreement (LoA) (Describe) |
|
| 2. VALIDITY | |
| A. Content validity: face validity | Tested |
| Expert opinion (relevance and comprehensiveness) (Describe) |
All 10 items had similar correlation coefficient with the principal component (0.71-0.84). High comprehensibility 9.6/10. |
| B. Construct Validity: Structural validity |
Tested |
| Hypotheses-testing | Tested |
| Cross-cultural validity | Tested |
| Brief Description |
strong validity on correlating its results with other disease parameters (Bostone Carpal Tunnel Questionnaire), nerve conduction, and ultrasonography testing. Assessed in both English and Arabic. Higher satisfaction with postoperative results was associated with greater improvement in the functional status scores. |
| C. Criterion validity | Tested |
| Comparison with a 'gold standard' Continuous scores: correlations, ROC curves Dichotomus: Sensitivity & Specificity (Describe) |
Compared to Clinical symptoms, nerve conduction testing and Ultrasonography of the median nerve. |