Brazilian version of the Cognitive Failures Questionnaire (CFQ): cross-cultural adaptation and evidence of validity and reliability
Revista Brasileira de Psiquiatria
Objective: Cognitive failures are simple mistakes in routine activities, such as forgetting commitments and experiencing difficulty concentrating. The Cognitive Failures Questionnaire (CFQ) was designed to assess the frequency of these errors in everyday life. Although widely used in psychiatry and psychology, both in clinical and research settings, it has not been adapted for use in Brazil. Our objective was to perform cross-cultural adaptation of the CFQ for the Brazilian reality and assess
... eality and assess its validity and reliability. Methods: The original version of the CFQ was translated into Brazilian Portuguese by two independent researchers, analyzed by a multidisciplinary board of experts, and back-translated into English. Results: The adapted version of the CFQ showed significant correlations with SRQ-20 (r = -0.311), ASRS-18 inattention (r = 0.696), and hyperactivity/impulsivity (r = 0.405) scores. Reliability analysis suggests high internal consistency (0.906) and temporal stability (0.813). Conclusion: The Brazilian Portuguese version of the CFQ showed moderate correlations with other measures of mental health, as well as adequate reliability.