Mokkink, Lidwine B.; Terwee, Caroline B.; Gibbons, Elisabeth; Stratford, Paul W.; Alonso Caballero, Jordi; Patrick, Donald L.; Knol, Dirk L.; Bouter, Lex M.; De Vet, Henrica C. W.
(BioMed Central, 2010)
Background: The COSMIN checklist is a tool for evaluating the methodological quality of studies on measurement properties of health-related patient-reported outcomes. The aim of this study is to determine the inter-rater ...