Assessing Participation in Stroke Survivors: Psychometric Properties of the Participation Measurement Scale (PM-Scale) Brazil

Initial evidence supports the reliability of the Participation Measurement Scale (PM-Scale) in Brazil, but further exploration of its psychometric properties is needed for Brazilian stroke survivors. The aim of the study is to analyze the reliability, convergent validity, internal consistency, and accuracy of the PM-Scale Brazil. A methodological study involved three assessments over intervals of 7-14 days. Reliability was evaluated through the Intraclass Correlation Coefficient. Convergent validity was assessed using Spearman's correlation coefficient to evaluate the alignment of the PM-Scale Brazil with the SATIS-Stroke. Internal consistency was assessed through Cronbach's α. Accuracy was estimated by calculating the area under the receiver operating characteristic curve. The study involved 110 stroke survivors, revealing adequate intra-rater and inter-rater reliability. A significant weak correlation was observed between the PM-Scale and SATIS-Stroke. Internal consistency and accuracy were adequate. The PM-Scale Brazil demonstrates good reliability, internal consistency, and sensitivity. However, its weak correlation with SATIS-Stroke suggests limited convergent validity.