Big Five Personality Questionnaire Login Delegate ID *Required Password *Required The Big Five Personality Questionnaire (BFPQ) is a comprehensive assessment of personality based on the model initially advanced by Ernest Tupes and Raymond Cristal in 1961. It has been developed by RFL to exclusively support consultancy work with our private clients. If you are interested in using the BFPQ in your organisation, please contact us: info@rachelfrost.co.uk. Participants: Please log in to the system using the delegate ID and password you have been sent. Register Don't have an account? Click here to register