Parents' Postoperative Pain Measure: Turkish Validity and Reliability

Objective: This study aimed to test the reliability and validity of the Turkish version of the Parents' Postoperative Pain Measure. Materials and Methods: The permission was obtained via email from the creator of the measure, Christine T. Chambers. A sample of 150 children aged 7-12 years (48.7% girls, 51.3% boys) was recruited for this methodological study. The instrument consisted of 15 items. A "Sociodemographic Questionnaire," the "Parents' Postoperative Pain Measure," and the "Wong-Baker Faces Pain Rating Scale" were utilized as data collection instruments. The study consisted of language and content validity testing (the technique of translation-back translation, Lawshe's technique), construct validity (exploratory and confirmatory factor analyses), and reliability testing (Kuder-Richardson 20 test, Pearson product moment correlation between parallel forms). Measurements were taken on postoperative days 1, 2, and 3. Results: The results of the factor analysis for validity demonstrated acceptable levels. The factor analysis produced a single factor with a total variance of 69%. The Parents' Postoperative Pain Measure and the Wong-Baker Faces Pain Rating Scale exhibited positive correlations on postop days 1, 2, and 3 (r=0.67/p<0.01, r=0.74/p<0.05, r=0.79/p<0.05). The internal consistency coefficient (Kuder-Richardson 20) was 0.851. Conclusion: The Parents' Postoperative Pain Measure, originally developed by Chambers et al. in the English language, is a valid and reliable instrument that is suitable for use in Turkish and the Turkish culture.