search | contact us


CSES Integrated Module Dataset (IMD)

About the Dataset

The CSES Integrated Module Dataset (IMD) brings together select variables from CSES Modules 1-4 into one longitudinal and harmonized dataset. Variables that appear in at least three CSES modules, up to and including CSES Module 5, are eligible for inclusion in the IMD. All polities that have participated in CSES Modules 1-4 are included in the dataset. Among other innovations, the IMD includes harmonized party/coalition codes within polities across CSES modules, within-dataset labels for all parties/coalitions, and an incumbent vote choice variable.

View the IMD codebook online

    Part 1: Introduction
    Part 2: Variables Description
    Part 3: Parties/Coalitions and Leaders

Stimulus Paper

    CSES IMD Stimulus Paper (.pdf)

Source Modules

The IMD includes data from the following CSES modules:

    CSES Module 1 (1996-2001)
    CSES Module 2 (2001-2006)
    CSES Module 3 (2006-2011)
    CSES Module 4 (2011-2016)

How do I merge additional variables from CSES modules onto the IMD?

The IMD contains several identifiers that allow users to merge additional variables from CSES modules onto the IMD. One means of doing so is to use the respondent identification variable, which appears as variable IMD1005 in the IMD. Variable IMD1005 uniquely identifies each respondent and maps onto the respondent identification variable found in each individual CSES module.

CSES Integrated Module Dataset (IMD) Release
December 4, 2018 version

You can download the dataset below to your own computer for analysis.

    Errata - list of updates and error corrections
    Funding Sources and How to Cite the Study
    DOI: doi:10.7804/cses.imd.2018-12-04 (What is this?)

Analyze on your own computer

First, create a local directory to download the files into. We recommend:


Second, download the codebook:

Third, download one or more of the following six files, depending on which statistical package(s) you intend to use with the data, and how: - CSV file (.csv) - R dataset (.rdata) - SAS dataset (.sas7bdat) - SPSS dataset (.sav) - STATA dataset (.dta) - Raw data and syntax for SAS, SPSS and STATA