Apparatus and method for controlling qulity of case report form

The present invention relates to a device for managing quality of a case report form (CRF) and a method thereof. According to an embodiment of the present invention, the computing assisting device comprises: a collecting unit configured to collect answer information of the CRF; and a processing unit configured to check at least one portion of the collected answer information to calculate an error rate with respect to the at least one portion.