Dual data entry is done by creating duplicates of each form in the CRF and assigning separate roles to the two users who will complete the data entry. This is done to ensure they can only see their assigned forms - more information on the method for this can be found here.

You may also wish to use calculation fields to check for discrepancies between the two entries. You can also choose a method to use for data verification:

• Set up Source Data Verification types
• Verify completed forms in your study