How might data be collected for this target response?Number of completed data sheets per day vs. number of expected data sheets.
Identify several interventions that might help improve response rates. Place them in order with the least-restrictive at the top so that the interventions may be introduced systematically, adding more restrictive / less favorable interventions after the outcomes of less restrictive options have been measured.

Implement a reinforcement system for the staff when the reach the number of data sheets.
Give immediate feedback
simplify data collection