| MEASUREMENT PROPERTIES | |
| Limitations | <5 European languages (English) |
| Observations | |
| 1. RELIABILITY | |
| A. Internal Consistency | Tested |
| Cronbach's (Describe) |
Agreement expressed by the SEM was well below 10% of the score range. Internal consistency of the USER-Participation scales was satisfactory (frequency: α = 0.70; restrictions: α = 0.91; satisfaction: α = 0.88) |
| B. Reliability intraobserver or test-retest | Tested |
| Continuous scores: intraclass correlation coefficient (ICC) Dichotomus: Cohen kappa (Describe) |
The weighted κ values of the individual items ranged from 0.30 to 0.95 and were fair for 2 items, moderate for 9 items, substantial for 13 items, and almost perfect for 7 items. The differences between mean scores on the first and second measurements were very small. The restrictions and the satisfaction scales showed satisfying reliability, but the frequency scale showed less than satisfying ICC values |
| C. Reliability interobserver or Measurement error | Not Tested |
| Standard error of measurement (SEM), smallest detectable change (SDC) or Limits of agreement (LoA) (Describe) |
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| 2. VALIDITY | |
| A. Content validity: face validity | Not Tested |
| Expert opinion (relevance and comprehensiveness) (Describe) |
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| B. Construct Validity: Structural validity |
Not Tested |
| Hypotheses-testing | Tested |
| Cross-cultural validity | Not Tested |
| Brief Description | |
| C. Criterion validity | Tested |
| Comparison with a 'gold standard' Continuous scores: correlations, ROC curves Dichotomus: Sensitivity & Specificity (Describe) |
Concurrent validity of the USER-Participation was shown because >75% (83.3%) of the 24 hypotheses (Spearman correlation coefficients above or below .60) with 2 International Classification of Functioning, Disability and Health (ICF)-based instruments were confirmed. |