Addressing the behavioural constraints to latrine uptake: effectiveness of a behaviour-change campaign in rural Cambodia

Abstract

Cambodia has the lowest coverage of improved water and sanitation facilities in South-east Asia. Research suggests that rural Cambodians prefer a high-quality latrine over one provided for free. Market-based approaches are often used to increase sanitation coverage, but private operators lack sufficient incentives and resources to stimulate demand among households that are not immediately responsive to sales events. This study assessed the effectiveness of a Behaviour Change Communications (BCC) intervention designed to address behavioural factors that may limit uptake of latrines. The study applies a quasi-experimental matching technique to estimate the causal effect of the intervention on latrine uptake in rural areas. Communes that received both the BCC intervention and sanitation marketing were matched to similar communes where only sanitation marketing was carried out. Multivariate linear regression analysis is used to estimate the impact of the BCC intervention on latrine uptake. Results show that l...