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Table 4 Internal reliability of the F-ECOHIS: Item total and alpha if item deleted statistics.

From: Validation of a Farsi version of the Early Childhood Oral Health Impact Scale (F-ECOHIS)

Item

Corrected item-total correlation

Cronbach's Alpha if Item Deleted

Child Impact Section

  

Oral/dental pain

.735

.918

Difficulty in drinking

.722

.918

Difficulty in eating

.707

.919

Difficulty in pronouncing words

.520

.925

Missed pre-school or school

.521

.925

Trouble sleeping

.741

.918

Irritable or frustrated

.724

.918

Avoided smiling or laughing

.683

.920

Avoided talking

.612

.922

Family Impact Section

  

Been upset

.640

.922

Felt guilty

.730

.918

Time off work

.729

.918

Financial impact

.684

.920