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Methodologic Quality Assessment of the Included Study per Measurement Property
| General recommendations | Content validity | Structural validity | Internal consistency | Cross-cultural validity | Reliability | Measurement error | Criterion validity | Hypothesis testing for construct validity | Responsiveness | |
| Zhou 2009 | 3 | 3 | 2 | 1 | - | 4 | - | - | 3 | - |
1 = very good; 2 = adequate; 3 = doubtful; 4 = inadequate; - = could not be scored.
