Dr. Ruilin Ren
Senior Technical Specialist

Dr. Ruilin Ren is a senior sampling expert with 25 years of experience providing support in survey design, implementation, and data analysis in developing countries to ensure representative data at an affordable cost. He has provided technical assistance and capacity building in sampling frame construction, sample design, sample selection, and weighting for Demographic and Health Surveys (DHS). Dr. Ren has developed sampling tools in Microsoft Excel and Statistical Analysis Software (SAS) for sample design, sample selection, weighting, and sampling error calculation.