Data clarification form
Questionnaire used in clinical research
From Wikipedia, the free encyclopedia
A data clarification form (DCF)[1] or data query form is a questionnaire specifically used in clinical research. The DCF is the primary data clarification tool from the trial sponsor or contract research organization (CRO) towards the investigator to clarify discrepancies and ask the investigator for clarification. The DCF is part of the data validation process in a clinical trial.
