| MEASUREMENT PROPERTIES | |
| Limitations | >=5 European languages (English) |
| Observations | |
| 1. RELIABILITY | |
| A. Internal Consistency | Tested |
| Cronbach's (Describe) |
In the original version with four domains, the internal consistency, measured by Cronbach’s α, of the subscales was as follows: 0.86 (social relationships), 0.87 (autonomy in self-care), 0.84 (family role), and 0.85 (mobility and leisure). In the developed version with five domains, test-retest reliability on the domain level showed no significant difference between the mean scores of the measurements, indicating good test-retest reliability. Intraclass correlation coefficients (ICCs) ranged from 0.83 (family role) to 0.91 (autonomy outdoors) |
| B. Reliability intraobserver or test-retest | Not Tested |
| Continuous scores: intraclass correlation coefficient (ICC) Dichotomus: Cohen kappa (Describe) |
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| 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 |
Tested |
| Hypotheses-testing | Tested |
| Cross-cultural validity | Not Tested |
| Brief Description |
Factor analysis with a four-factor solution showed that the scale structure could be best interpreted according to the following dimensions of perceived handicap: social relationships, autonomy in self-care, mobility and leisure, and family role (the former subscales family role and financial independence). With this factor solution, 68% of the total variance could be explained |
| C. Criterion validity | Not Tested |
| Comparison with a 'gold standard' Continuous scores: correlations, ROC curves Dichotomus: Sensitivity & Specificity (Describe) |
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