How might data be collected for this target response?Data could be tracked by checking whether staff are consistently filling out client data sheets during sessions and reviewing completed binders at the end of the day for accuracy and completeness.
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.

The behavior analyst could start by reviewing expectations and making data collection easier for staff, then add reminders, feedback, and reinforcement, followed by closer supervision and accountability procedures if the problem continues.