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Building the RePass PTR Measure of Ideology (ICPSR 23040)

Principal Investigator(s): RePass, David, University of Connecticut


In the article "Searching for Voters along the Liberal-Conservative Continuum: The Infrequent Ideologue and the Missing Middle," the author presents a measure which can ascertain the ideological orientation of American voters. The measure identifies which voters are liberals, which are conservatives, and which are middle-of-the-roaders. The measure combines responses to four variables that can be found in most American National Elections Study (ANES) datasets since 1972. This archived document is a write-up of the exact method used to build the measure. The instructions also include the SPSS syntax used.

Access Notes

  • These data are flagged as replication datasets and are distributed exactly as they arrived from the data depositor. ICPSR has not checked or processed this material. Users should consult the investigator(s) if further information is desired.

  • The public-use data files in this collection are available for access by the general public. Access does not require affiliation with an ICPSR member institution.


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Study Description


RePass, David. Building the RePass PTR Measure of Ideology. ICPSR23040-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2008-08-11. https://doi.org/10.3886/ICPSR23040.v1

Persistent URL: https://doi.org/10.3886/ICPSR23040.v1

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Scope of Study

Subject Terms:    beliefs, conservatism, Conservative Party, Democratic Party (USA), elections, Liberal Party, liberalism, party identification, political ideologies, political parties, political systems, Republican Party (USA), voters, voting attitudes, voting behavior

Geographic Coverage:    United States

Data Collection Notes:

The zipped package contains a Microsoft Word document explaining the derivation of the measure used in the afore-mentioned reference article. The document also includes SPSS syntax.

This document is part of ICPSR's Publication-Related Archive and is distributed exactly as it arrived from the data depositor. ICPSR has not checked or processed this material. Users should consult the principal investigator if further information is desired.



Original ICPSR Release:   2008-08-11

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