Table 2 Reliability analysis coefficients of the Jenkins Sleep Scale (JSS) (n = 420)
Variable | Item-rest correlation | Cronbach’s α | McDonald’s ω | Intraclass correlation ICC |
|---|---|---|---|---|
Total JSS | NA | 0.74 | 0.75 | 0.94 |
If item dropped | ||||
JSS-1 | 0.56 | 0.67 | 0.69 | NA |
JSS-2 | 0.44 | 0.73 | 0.74 | NA |
JSS-3 | 0.64 | 0.63 | 0.64 | NA |
JSS-4 | 0.52 | 0.70 | 0.72 | NA |