Luke Sonnet is a Principal Investigator on Political Linkages Project at CERP. Luke is the Lead Data Scientist at GrowthBook, the leading open source experimentation platform. His previous roles were working on central platform teams at Twitter (Experimentation Data Science) and Facebook (Demography and Survey Science). Before that, he received his PhD in Political Science from UCLA. His graduate research focused on the behavior of legislators and voters. His research used largely experimental and quasi-experimental methods to study the effects of political communication, the role of political dynasties, and how social norms and female political participation. Most of his applied work is based in Pakistan.