Cross-cultural adaptation and validation of the Chinese version of the Malocclusion Impact Scale for Early Childhood (MIS-EC/C)

Table 2 Mean scores and reliability results for the MIS-EC/C

Domain	Mean	SD	Corrected item- total correlation	Cronbach’s alpha if item deleted
Child Impact domain
1. Had difficulty eating or biting certain foods	1.31	0.82	0.803	0.934
2. Had difficulty pronouncing a word	1.28	0.74	0.787	0.935
3. Angry or bad tempered	1.28	0.73	0.787	0.935
4. Acted shy, embarrassed, ashamed or looked worried	1.09	0.88	0.852	0.931
5. Avoided smiling or laughing	0.94	0.70	0.816	0.934
6. Made fun by other children	0.82	0.74	0.772	0.936
Family Impact domain
7. Felt annoyed or guilty	0.41	0.72	0.805	0.934
8. Had bite problems or teeth positioning problems	0.51	0.87	0.749	0.939

ISSN: 1477-7525