The research design of this study was a case study consisting of mixed research methods to comprehensively analyze farmers' participation level in CBWM program and factors that determine their participation. First, qualitative research was conducted in August 2016, using key informant interviews and individual case studies. This was followed by a household survey, which was designed based on input obtained from the qualitative research. The survey-based data collection was conducted in January and February 2017. 2.3.3 Methods of data collection Key informant interviews Key informant interviews were conducted to identify and analyze decision-making processes of actors (other than farmers) in the CBWM program. Actors were also asked to reflect on driving factors and the process through which farmers make decisions to participate at the planning, implementation and post-implementation stages of the program. Interviews were conducted with 29 purposively selected individuals, including experts in the Oromia Region Natural Resource Conservation and Protection Unit, experts in Boset District Natural