From: Validation of two complementary oral-health related quality of life indicators (OIDP and OSS 0-10 ) in two qualitatively distinct samples of the Spanish population
OIDP Dimensions
Corrected item-total correlation
Alpha if item deleted
Eating
0.43
0.65
Speaking
0.40
0.67
Cleaning
0.30
0.68
Working
0.38
Social
0.66
Sleeping & Relaxing
Smiling
0.42
Emotional
0.45