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Table 3 Cronbach’s alpha coefficient for child impact section and family impact section assessed separately

From: Evaluation of the reliability and validity of the Early Childhood Oral Health Impact Scale (ECOHIS) questionnaire translated into Malagasy

 Complete Correlation of corrected itemsCronbach’s alpha if item deleted
Child Impact Section
 1 Oral/dental pain.669.839
 2.Difficulty in drinking.653.841
 3.Difficulty in eating.707.839
 4.Difficulty in pronouncing words.595.841
 5.Missed pre-school/school.655.841
 6.Difficulty in sleeping.707.840
 7.Irritable or frustrated.770.837
 8.Avoided smiling or laughing.703.840
 9.Avoided talking.722.842
Family Impact Section
 10.Been upset.618.840
 11.Felt guilty.477.843
ECOHIS total scale.847