Scaling policy preferences from coded political texts


Lowe, Will ; Benoit, Kenneth ; Mikhaylov, Slava ; Laver, Michael



DOI: https://doi.org/10.1111/j.1939-9162.2010.00006.x
URL: http://onlinelibrary.wiley.com/doi/10.1111/j.1939-...
Additional URL: https://www.researchgate.net/publication/227733539...
Document Type: Article
Year of publication: 2011
The title of a journal, publication series: Legislative Studies Quarterly : LSQ
Volume: 26
Issue number: 1
Page range: 123-155
Place of publication: Iowa City, Iowa
Publishing house: Comparative Legislative Research Center, University of Iowa ; Wiley
ISSN: 0362-9805 ; 1939-9162
Publication language: English
Institution: Außerfakultäre Einrichtungen > Mannheim Centre for European Social Research - Research Department B
Subject: 320 Political science
Abstract: Scholars estimating policy positions from political texts typically code words or sentences and then build left-right policy scales based on the relative frequencies of text units coded into different categories. Here we reexamine such scales and propose a theoretically and linguistically superior alternative based the logarithm of odds-ratios. We contrast this scale with the current approach of the Comparative Manifesto Project (CMP), showing that our proposed logit scale avoids widely acknowledged flaws in previous approaches. We validate the new scale using independent expert surveys. Using existing CMP data, we show how to estimate more different policy dimensions, for more years, than has been possible before, and make this dataset publicly available. Finally, we draw some conclusions about the future design of coding schemes for political texts.

Dieser Eintrag ist Teil der Universitätsbibliographie.




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Lowe, Will ; Benoit, Kenneth ; Mikhaylov, Slava ; Laver, Michael (2011) Scaling policy preferences from coded political texts. Legislative Studies Quarterly : LSQ Iowa City, Iowa 26 1 123-155 [Article]


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