Cross-culturally adaptation of the knowledge of disease management-cf-adolescent questionnaire into Brazilian Portuguese
DOI:
https://doi.org/10.1590/Keywords:
Cystic Fibrosis, Patient Health Questionnaire, Knowledge Management, Health Knowledge, Attitudes, Practice, Healthy LifestyleAbstract
This study cross-culturally adapted the
Knowledge of Disease Management-CF-Adolescent (KDMCF-
Adolescent) questionnaire into Brazilian Portuguese and
tested its measurement properties. Cross-cultural adaptation
followed five standardized steps: translation, consensus
on the translated version, back translation, consensus on
the back translation version, and application of the final
version to 35 adolescent patients aged 11 to 20 years with social distancing measures, the questionnaire was delivered
online using the Google Forms platform. Data underwent Rasch
analysis using the WINSTEPS software. Since no issues regarding
understanding were reported, we made no changes in any of the
translated items. KDM-CF-Adolescent divided the sample into two
levels of knowledge and the items into three levels of difficulty,
leading to person and item reliability indices of 0.67 and 0.81,
respectively, and internal consistency of 0.69. All items fit the Rasch
model expectations since all infit/outfit and associated z values
were within the expected range. Principal component analysis
confirmed the existence of two dimensions; however, they did not
function as independent scales. Analysis showed no duplication
of any content and no floor and/or ceiling effects. The Brazilian
Portuguese version of the KDM-CF-Adolescent questionnaire
showed satisfactory measurement properties in measuring the
knowledge of adolescents with CF about the disease.
cystic fibrosis (CF). Due to the COVID-19 pandemic and
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