How might data be collected for this target response?Anecdotal data and frequency data to see who is taking data, and take partial interval data on client-staff interactions.
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 goal is to increase staff to client interactions and fidelity of implementing interventions and data collection. These topics can be reviewed in a team meeting, modeled, rehearsed for examples of desired responses, and then feedback delivered during data probes.