Causal Inference in Education Research Seminar (CIERS) Estimating the Impact of Head Start for Children with Special Needs – A Sensitivity Analysis Feb 22, 2017, 8:30-10:00 am EST Weill Hall, Room 1220 The objective of the Causal Inference in Education Research Seminar (CIERS) is to engage students and faculty from across the university in conversations around education research using various research methodologies.