关键词: 学龄前儿童；龋病；信度；效度

Abstract: Objective: To translate the Illness Perception Questionnaire Revised for Dental (IPQ-RD) into Chinese and to test its reliability and validity. Methods: After contacting and obtaining the authorization of the author of the original questionnaire, we translated, translated back, adapt the culture of IPQ-RD, determined the dimensions and items of the Chinese version of the questionnaire, and formed the Chinese version of the IPQ-RD. Results: The content validity index of the single item of Chinese versionof IPQ-RD reached 0.80 or above, and the total item content validity index was 0.948.Factor analysis extracted 8 common factorswith the cumulative contribution rate of 80.378%. Each item in the corresponding common factors have a large factor load value (>0.4). The total Cronbach's alpha coefficient was 0.914 and the refraction reliability coefficient was 0.746. Conclusion: The Chinese version of IPQ-RD has good reliability and validity and could be used to evaluate the degree of disease perception among the caregivers of preschool children with caries.

Key words: preschool children; caries; reliability; validity