The U.S. Census Bureau’s Center for Behavioral Science Methods (CBSM) conducted focus group research with field staff for the National Health Interview Survey (NHIS) to collect feedback on various topics, including respondent-facing materials, follow-up letters, a new proposed Sample Adult Letter, and field staff’s thoughts and experiences about respondent incentives. CBSM conducted six focus groups with 43 total field staff, including 28 Field Representatives, eight Field Supervisors, and seven Research Survey Managers.  
The results show that field staff were partial towards some respondent-facing materials and disliked when the materials mentioned the voluntary nature of the survey or how long the survey would take. They also found it easy to request follow-up letters, although they said that it was difficult to know when the letters would arrive at respondents’ homes. The field staff liked the idea of the Sample Adult Letter and suggested some minor changes. They provided mixed feedback on how effective they thought respondent incentives would be. There was also more support among field staff for the use of FedEx over USPS for delivering follow-up letters. In this report, CBSM provides recommendations based on the feedback received in these focus groups, and also points out the need in some cases for respondent testing to collect more pertinent feedback on some of the topics.