Article

The Evolving Influence of Psychometrics in Political Science

Keith T. Poole

in The Oxford Handbook of Political Methodology

Published in print August 2008 | ISBN: 9780199286546
Published online September 2009 | | DOI: http://dx.doi.org/10.1093/oxfordhb/9780199286546.003.0009

Series: Oxford Handbooks of Political Science

The Evolving Influence of Psychometrics in Political Science

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This article outlines how the measurement of political issue spaces has developed in the past eighty years through borrowings from psychometrics (scaling, factor analysis, and unfolding), additions from political science theories (the spatial theory of voting and ideal points), and confronting the special problems of political survey, roll-call, and interest-group ratings data. Psychometrics is a subfield of psychology devoted to the development, evaluation, and application of mental tests of various kinds. In the 1980s, political scientists began combining techniques from econometrics and statistics with approaches developed by psychometricians. The effect of psychometrics displays no sign of abating in political science. The level of sophistication of psychometric applications in political science has steadily increased in the past twenty years.

Keywords: psychometrics; political science; econometrics; statistics; measurement; spatial theory; scaling; factor analysis; unfolding

Article.  6393 words. 

Subjects: Politics ; Political Methodology ; Comparative Politics

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