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Internet Surveys and the CSES

Internet Surveys and the CSES. David Howell University of Michigan dahowell@umich.ed u Cyberinfrastructure and National Election Studies The Wivenhoe House Conference June 8-9, 2007. Overview of the CSES Project. The Origins of the CSES. • Stimulated by ICORE in 1995

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Internet Surveys and the CSES

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  1. Internet Surveys and the CSES David HowellUniversity of Michigandahowell@umich.edu Cyberinfrastructure and National Election Studies The Wivenhoe House Conference June 8-9, 2007

  2. Overview of the CSES Project

  3. The Origins of the CSES • Stimulated by ICORE in 1995 — International collaboration among national election studies — Designed to study variations in electoral systems (and other political institutions) • 10-15 minute module with common questions in national election studies

  4. Module Topics • Module 1 (1996-2001) —Performance of the System • Module 2 (2001-2006) —Representation and Accountability • Module 3 (2006-2011) —Electoral Choices

  5. Organization and Process • An international Planning Committee, comprised of, selected by, and informed by collaborators, designs and oversees each Module • Collaborators raise funds locally and collect data for their country in a post-election study • Collaborators deposit data, documentation and reports with the CSES Secretariat • Secretariat processes and merges the items into a single data file for comparative study

  6. CSES Datasets • All in one file, for all election studies and countries... • Respondent data • Administrative variables and weights • CSES questionnaire (module) • Demographic variables • Vote • District-level data • Macro-level data

  7. Countries/Provinces: CSES Modules 1 and 2 Both Module 1 and Module 2 Only Module 1 Only Module 2

  8. Countries/Provinces: CSES Modules 1-3

  9. Availability of Data —Free, public access without embargo —Available from CSES website: www.cses.org —Also archived at ICPSR, Zentralarchiv Cologne, and other locations

  10. Data Releases • Module 1 (1996-2001) • - July 2002 Full Release: • 39 election studies, 33 countries • Module 2 (2001-2006) • - June 27, 2007 Full Release: • 41 election studies, 38 countries

  11. CSES Bibliography The CSES Bibliography contains over 300 entries: Citations and links are available on the CSES website.

  12. Internet Surveys and the CSES

  13. CSES Collaborator Requirements • Election studies must meet Aspired to Standards • for Data Quality and Comparability, including... • (CSES Planning Committee, 1996) • Post-election study, soon afterwards • National, random sample with good coverage • Include CSES questionnaire “as is” • 1,000 or more interviews • Face-to-face, unless alternate improves quality • High response rate

  14. Internet Surveys and the CSES: Four Issues • Mode • Is the Internet an acceptable CSES data collection mode? • Sample Coverage • What are the implications of Internet penetration? • Sample Selection • How must Internet samples be constructed to meet CSES guidelines? • Response Rates • Do Internet response rates satisfy CSES guidelines?

  15. Issue: Mode Is the Internet an acceptable CSES data collection mode? -> YES (Decision taken at the CSES Module 3 Planning Committee Meeting in Seville, Spain, March 2006) • CSES Module 1: • 70% face-to-face • 15% mail/self-completion • 10% telephone • 5% mixed

  16. Issue: Sample Coverage What are the implications of Internet penetration? Internet penetration rate varies greatly May exclude some countries/provinces ->?

  17. % Internet “Users” in CSES Countries/Provinces Source: Internet World (http://www.internetworldstats.com/index.html), May 2007

  18. Issue: Sample Selection How must Internet samples be constructed to meet CSES guidelines? “We strongly encourage the use of random samples, with random sampling procedures used at all stages of the sampling process.” (CSES Planning Committee, 1996) -> Non-probability samples will not be accepted (Decision taken at the CSES Module 3 Planning Committee Meeting in Bangalore, India, November 2006)

  19. Issue: Response Rate Do Internet response rates satisfy CSES guidelines? “Collaborators should make every effort to ensure a high response rate.” (CSES Planning Committee, 1996) Response rates are lower on the Internet than in F2F Denominator must be from the recruitment stage ->? CSES Module 1: Reported response rate was over 60% on average.

  20. Conclusions

  21. Internet Surveys and the CSES David HowellUniversity of Michigandahowell@umich.edu Cyberinfrastructure and National Election Studies The Wivenhoe House Conference June 8-9, 2007

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