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To analyze the reliability and validity of the "activity and participation" component of the brief international classification of functioning, disability and health (ICF) core set for chronic obstructive pulmonary disease (COPD) using a Multi-faceted Rasch model.

international journal of copd

&lt;p&gt;The Reliability and Validity of the “Activity and Participation” Component in the Brief ICF Core Set for Chronic Obstructive Pulmonary Diseases Based on Rasch Analysis&lt;/p&gt;