The PI assumes overall responsibility for all research activities and is a nominated person on the protocol and in any ethics committee applications.
The day-to-day management of the study is the responsibility of the research coordinator who may be a ministry of health staff member, associated with the national institute for health (or related entity), a university faculty member or someone from an external organization such as an independent research institute. The research coordinator should report to the PI. The main work of the research coordinator is managing the implementation of the study. If possible, this person should be actively involved in the design of the study and protocol development. The research coordinator supervises the work of the data collectors or other field staff. This requires close collaboration between the research coordinator and data collectors, either via direct supervision or regular reports from the staff.
The data manager is responsible for managing data collected by interviewers. This person should have some expertise in data management for public health research, and prior experience in managing datasets would be highly beneficial. Depending on the tools used for data collection, the manager should also be familiar with online data collection systems, including being able to troubleshoot and rectify any data collection problems. Depending on the composition of the survey team, the data manager will usually report to the PI.
The data analyst is responsible for data cleaning and analysis throughout the study and also periodic data cleaning in coordination with the data manager. The data analyst can be an existing member of the research team, or someone external to the team (for example, from the ministry of health or an external organization) and does not need to work full time on the study. Local universities or research institutes can often be good places to identify a data analyst. Data analysis may be undertaken by the PI or the data manager if he/she is a health economist, economist or statistician with experience in such surveys. Therefore, a dedicated person for this function is optional. However, if this person is not included in the research team, the roles and responsibilities need to be absorbed by another member of the team, for instance by the PI.