The Sierra Leone Malaria Behavior Survey was fielded between September and October 2019. Survey results were analyzed in coordination with the National Malaria Control Program and released in 2020. The survey was carried out by the Breakthrough ACTION project in Sierra Leone in collaboration with the National Malaria Control Program, the U.S. President’s Malaria Initiative (PMI), and several other local organizations. In the same year, complementary qualitative research was conducted (in the same districts) to explore perceptions, knowledge, and behaviors for malaria prevention, diagnosis, and case management among facility-based health workers and patients. Breakthrough ACTION developed guidelines for how, when, and why to conduct qualitative research to complement the Malaria Behavior Survey results (coming soon).