Validated questionnaires should not be modified
نویسندگان
چکیده
منابع مشابه
Validated questionnaires should not be modified.
T he reformatting and changes that were made to the Asthma Control Questionnaire (ACQ) [1] for the Post-cold Asthma Control and Exacerbation (PAX) study [2] raise some important concerns about modifying validated questionnaires. Just like mechanical and electrical measurement instruments, validated questionnaires are precision measurement instruments. The only difference being that they measure...
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ژورنال
عنوان ژورنال: European Respiratory Journal
سال: 2009
ISSN: 0903-1936,1399-3003
DOI: 10.1183/09031936.00110209