Public attitude surveys provide invaluable data for assessing perceptions, values, and attitudes across societies and over time. Ideally, respondents feel secure to disclose accurate information (avoiding reporting bias and item non-response) in the context of a face-to-face interview. Yet, survey research seldom accounts for peer effects caused…

RTI International created a geospatial grid-based sampling methodology that: achieved a probability-based household sample and unbiased estimates; was comparable across countries; used simple frame data available from the in-country census; and was efficient with minimal training to local field staff. The methodology used 1 km[superscript 2]…