Shifting social norms to reduce open defecation in rural India

Abstract Toilet ownership in India has grown in recent years, but open defecation can persist even when rural households own latrines. There are at least two pathways through which social norms inhibit the use of toilets in rural India: (1) beliefs/expectations that others do not use toilets or latrines or find open defecation unacceptable; and (2) beliefs about ritual notions of purity that dissociate latrines from cleanliness. A survey in Uttar Pradesh, India, finds a positive correlation between latrine use and social norms at baseline. To confront these, an information campaign was piloted to test the effectiveness of rebranding latrine use and promoting positive social norms. The intervention targeted mental models by rebranding latrine use and associating it with cleanliness, and it made information about growing latrine use among latrine owners more salient. Following the intervention, open defecation practices went down across all treatment households, with the average latrine use score in treatment villages increasing by up to 11% relative to baseline. Large improvements were also observed in pro-latrine beliefs. This suggests that low-cost information campaigns can effectively improve pro-latrine beliefs and practices, as well as shift perceptions of why many people still find open defecation acceptable. Measuring social norms as described can help diagnose barriers to reducing open defecation, contribute to the quality of large-scale surveys and make development interventions more sustainable.