Table 3 Internal reliability analysis of COHIP-SF 19 JP and each subscale (n = 379)
Scale (number of items) | Cronbach’s alpha | Item-test correlation | Item-rest correlation | Alpha if item deleted |
|---|---|---|---|---|
Total COHIP-SF 19 JP (19) | 0.77 | 0.08–0.68 | 0.04–0.60 | 0.74–0.79 |
Oral health (5) | 0.57 | 0.36–0.56 | 0.23–0.45 | 0.75–0.77 |
Functional well-being (4) | 0.45 | 0.31–0.48 | 0.24–0.37 | 0.76–0.77 |
Socio-emotional well-being (10) | 0.68 | 0.08–0.68 | 0.04–0.60 | 0.74–0.79 |