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Formerly the Cooperative Congressional Election Study
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Data Exploration Tools
CES 2022 Data
CES Cumulative Common Content
CES 2021 Data
CES 2020 Data
CCES 2019 Data/Guide
CCES Cumulative Policy
CCES 2018 Data
CCES 2017 Data/Guide
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CCES 2010-14 Panel Study
CCES 2015 Data/Guide
CCES 2014 Data/Guide
CCES 2013 Data/Guide
CCES 2010-12 Panel Study
CCES 2012, Data/Guide
CCES 2011 Data/Guide
CCES 2010 Data/Guide
CCES 2009 Data/Guide
CCES 2008 Data/Guide
CCES 2007 Data/Guide
CCES 2006 Data/Guide
PORTL 2005 Data/Guide
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Latest News
Call for teams for the 2024 CES
Call for teams for the 2022 CES
Crunching the Data on American Elections: The Cooperative Congressional Election Study (CCES)
Call for teams for the 2021 CES
Call for Teams for the 2020 CCES
Announcing the 2019 Cooperative Congressional Election Study
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Recent Publications
The 2020 CES: Duplicate Respondents and Handling Asian and Hispanic Subsamples
Fuzzy Forests For Feature Selection in High-Dimensional Survey Data: An Application to the 2020 U.S. Presidential Election
Difference-in-Differences for Ordinal Outcomes: Application to the Effect of Mass Shootings on Attitudes toward Gun Control
The Seeds of Ideology: Historical Immigration and Political Preferences in the United States
A rural-urban political divide among whom? Race, ethnicity, and political behavior across place, Politics, Groups, and Identities
The Geography of Racially Polarized Voting: Calibrating Surveys at the District Level
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