United States Cooperative Congressional Election Study (CCES) 2018, Team Module of University of Delaware CCES 2018, Team Module of University of Delaware Survey: Nationally representative - Subnationally representative GHDx Entry last modified on: May 1, 2024
United States Cooperative Congressional Election Study (CCES) 2016, Team Module of University of Delaware-A CCES 2016, Team Module of University of Delaware-A (UDEL) Survey: Nationally representative - Subnationally representative GHDx Entry last modified on: May 1, 2024
United States Cooperative Congressional Election Study (CCES) 2016, Team Module of University of Delaware-B CCES 2016, Team Module of University of Delaware-B (UDEL) Survey: Nationally representative - Subnationally representative GHDx Entry last modified on: May 1, 2024