|
Internal consistency measured for the total OHIP-NL and for its seven domains: Cronbach's alphas and average inter-item correlations |
||
| Cronbach's alpha |
Average inter-item correlation |
|
|
|
||
| Total OHIP-NL |
0.97 |
0.42 |
| Functional limitation |
0.82 |
0.34 |
| Physical discomfort |
0.87 |
0.42 |
| Psychological discomfort |
0.90 |
0.64 |
| Physical disability |
0.88 |
0.54 |
| Psychological disability |
0.92 |
0.66 |
| Social disability |
0.95 |
0.79 |
| Handicap |
0.92 |
0.65 |
van der Meulen et al. BMC Oral Health 2008 8:11 doi:10.1186/1472-6831-8-11 |
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