Psychometric properties of the Child Oral Impacts on Daily Performances (C-OIDP) index: a cross-sectional and an intervention study of adolescents in Bosnia and Herzegovina

Table 4 Reliability analysis: Corrected item-total correlation, Cronbach's alpha and alpha if item delated

Performances	Corrected item-total correlation	Alpha if item deleted
Eating	0.51	0.87
Speaking	0.73	0.84
Cleaning teeth	0.70	0.84
Sleeping/Relaxing	0.48	0.87
Emotional status	0.63	0.85
Smiling	0.72	0.84
Studying	0.55	0.86
Social contacts	0.73	0.84
Cronbach's alpha coefficient		0.86

ISSN: 1472-6831