Background and Aims: Our goal was to develop an online questionnaire to survey the prevalence of suicidal behavior. Methods:We developed a questionnaire with 51 variables and proceeded with validations. Validations were performed using face validity, content validity, and construct validity. Reliability was performed by test−rest.Results: The face validity was 1.0 and the content validity was 0.91. The exploratory factor analysis got Kaiser−Meyer−Olkin = 0.86 and extracted one principal factor.The confirmatory factor analysis demonstrates root mean square error of approximation = 0.000 and comparative fit index = 1.000. The test−retest had an intraclass correlated coefficient of 0.98. Conclusion:The adequate development questionnaire was validated, and we have an instrument to survey suicide behaviors during the pandemic time.Patient or Public Contribution: The general population of Marília voluntarily responded to the questionnaire, as well as patients from the principal investigator's office.

Objective: Our goal is to develop an online questionnaire to survey the prevalence of suicidal behavior. Methods: We developed a questionnaire with 51 variables and proceeded with validations. Validations were performed using face validity, content validity, and construct validity. Reliability was performed by test-rest. Results: The face validity was 1.0 and the content validity was 0.91. The exploratory factor analysis got KMO = 0.86 and extracted one principal factor. The confirmatory factor analysis demonstrates RMSEA= 0.000 and CFI=1.000. The test-retest had an intraclass correlated coefficient of 0.98. Conclusion: The adequate development questionnaire was validated, and we have an instrument to survey suicide behaviors in the pandemic time.