On the validity and reliability of the EASYCare-2010 S Standard to assess elderly people in Portuguese Primary Health Care

摘要

We have intently read the article ‘‘Reliability and validity of the EASYCare-2010 Standard to assess elderly people in Por- tuguese Primary Health Care’’.' It is a very important study for the health field. However, it presents some methodologi- cal weaknesses in the instrument validation process which could affect the results of future research. Although there is no rigid guide for the process of construction and validation of an instrument, there are basic criteria that come from the psychological and educational sphere? that should be con- sidered in the instrument validation process to guarantee their results.