Measurement of family-centred care: translation, adaptation and validation of the Measure of Processes of Care (MPOC-56 and -20) for use in Japan.

Background The Measure of Processes of Care (MPOC) that was developed in Canada is a widely used quantitative measure of parents' perceptions of the extent to which family-centred care is conducted. The purpose of this study was to assess the validity and reliability of the Japanese version of the MPOC. Methods The translation of the MPOC was performed according to international standards for translation of questionnaires. The Canadian validation procedures were followed, consisting of concurrent validity, construct validity and test-retest reliability. The Japanese version of the MPOC was completed by 261 families with children receiving rehabilitation services. Results The Japanese version of the MPOC showed adequate internal consistency with Cronbach's alpha, varying between 0.76 and 0.94. The construct validity was examined with confirmative analysis of each scale structure. Correlations between the MPOC scale scores and satisfaction questions scores were positive, and that to a question about parents' stress was negative. For test-retest reliability, the intraclass correlation coefficients were between 0.76 and 0.89. Conclusions The Japanese version of the MPOC has good psychometric properties and can be recommended for evaluation of the processes of child rehabilitation in Japan. [ABSTRACT FROM AUTHOR]