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CSES Module 3 Data Set Errata
Posted: March 31, 2011

Updates made to the Advance Release of March 31, 2011, since the Advance Release of March 29, 2010

The second advance release of March 31, 2011 contain additions, updates, and improvements to the first advance release of March 29, 2010. Please do not use files from the previous release with files from the current release. Variable names and attributes, as well as the data, have sometimes been changed.

Some of the changes between the first and second advance releases are listed here, though this is not a comprehensive list:

  1. Fifteen new election studies have been added to the file, bringing the number of election studies included so far in Module 3 to 29 in total. The studies added as of the second advance release are: Austria (2008), Czech Republic (2006), France (2007), Germany (2009), Hong Kong (2008), Iceland (2007), Iceland (2009), Ireland (2007), Mexico (2006), Mexico (2009), Netherlands (2006), New Zealand (2008), Poland (2005), Poland (2007), and Portugal (2009).
  2. The sources of the following variables updated their data for election studies from the previous release, so we updated the values in the CSES data set as well: C5050 (Freedom House Rating), C5051 (Democracy - Autocracy - Polity IV Ratings), C5080 (GDP Growth - Annual %), C5081 (GDP Per Capita, PPP), C5082 (Inflation, GDP Deflator - Annual %), C5084 (Population, Total), and C5085 (Unemployment, Total).
  3. The methodology that UNDP uses to create their Human Development Index was changed as of 2010. We have changed the values of variable C5083 (Human Development Index) for all election studies to reflect the new methodology so that the measure in use is comparable across the full CSES Module 3 dataset.
  4. In the Australia (2007) election study, variables C3010_A-C3010_F (Like-Dislike Evaluations for Leaders A-F) were added.
  5. In the Australia (2007) election study, we constructed C3031 (Previous Election: Did Respondent Cast a Ballot) out of the reported vote choice in the previous election (C3032_LH_DC).
  6. In the Belarus (2008) election study, the variable C5091 (Number of Elected Legislative Chambers) was changed to "2. Two legislative chambers; Bicameral legislature".
  7. In the Germany (2005) election study, the variable C5075 (Size of the Lower House) was changed from 514 to 598. The German parliament has 598 seats nominally, although the size of the Bundestag is slightly variable due to the possibility of "overhang mandates".
  8. In the South Korea (2008) election study, we changed C2011 (main occupation) from "96. Other or non-classifiable occupations" to "99. Missing" for respondents who were listed in C2010 (current employment status) as not being in the labor force (C2010 = 6, 7, or 8).
  9. In the Taiwan (2008) election study, respondents previously coded in variable C2011 (main occupation) as "70. [See variable notes]" were recoded into "51. Personal and protective service workers".
  10. In the Taiwan (2008) election study, we corrected the codes for the effective and corrected effective number of parliamentary parties. C5095 (ENPP) now has value "1.7489" and C5096 (CENPP) now has value "1.7491".

If you have questions or concerns, e-mail us at and we would be pleased to help.