Validity and reliability of the Swedish versions of the short-form Child Perceptions Questionnaire 11–14 and Parental Perceptions Questionnaire

Abstract

Objective: To examine the validity and reliability of the Swedish versions of the short-form Child Perceptions Questionnaire 11–14 (CPQ_11–14) and Parental Perceptions Questionnaire (P-CPQ) for measuring children’s oral health-related quality of life (OHRQoL).

Material and methods: The sample comprised 247 children and parents. OHRQoL was assessed by asking each child and their accompanying parent to complete the relevant questionnaire. To allow test–retest analysis, 30 children and 32 parents were asked to complete the instrument a second time within 2–4 weeks.

Results: In terms of construct validity, significant correlations were observed between CPQ scale scores and the global ratings of oral health and overall well-being for both the CPQ_11–14 and the P-CPQ. Regarding internal consistency, Cronbach’s alphas for the total scales were 0.81 and 0.77, respectively, indicating good reliability, and internal consistency for the subscales (two or four dimensions) was acceptable. Test–retest reliability was good for the CPQ_11–14 total scale (ICC 0.77) and acceptable for the P-CPQ total scale (ICC 0.63).

Conclusions: The Swedish versions of the short-form CPQ_11–14 and P-CPQ are both valid and reliable, and can be recommended for use among Swedish children aged 11–14 years for evaluation of OHRQoL.