For my master's capstone project, I designed a randomized control trial (RCT) to evaluate three sanitation interventions in Bihar, India.
Previous sanitation studies found that building improved sanitation facilities did not neccessarily result in improved health outcomes for populations in rural India. However, those studies are limited to monitoring access to these facilities rather than use.
Often times, these facilities are not well maintained and the design combats the population's social norms. So, rather than looking at access to sanitation, my RCT proposed measuring the use of improved sanitation facilities and how that affects health outcomes.
The figure below shows my hypothesized causal pathway, starting with my three interventions and their underlying principles.