This document summarizes a review and synthesis of three methodologies - Community-Led Total Sanitation (CLTS), Participatory Hygiene and Sanitation Transformation (PHAST), and Sanitation Marketing (SanMark) - aimed at increasing access to and use of improved sanitation. The review examined reported reductions in disease, adoption of sanitation behaviors and hardware, and program components. It found little quantitative measurement of reduced diarrhea and called for improved evaluation methodology, baseline surveys, and behavior change measurement to better understand program impacts.