Measuring Bias and Uncertainty in DW-NOMINATE Ideal Point Estimates via the Parametric Bootstrap
Posted: 18 Aug 2009
There are 2 versions of this paper
Measuring Bias and Uncertainty in DW-NOMINATE Ideal Point Estimates via the Parametric Bootstrap
Number of pages: 25
Posted: 14 Oct 2008
Downloads
148
Date Written: Summer 2009
Abstract
DW-NOMINATE scores for the U.S. Congress are widely used measures of legislators' ideological locations over time. These scores have been used in a large number of studies in political science and closely related fields. In this paper, we extend the work of Lewis and Poole (2004) on the parametric bootstrap to DW-NOMINATE and obtain standard errors for the legislator ideal points. These standard errors are in the range of 1%-4% of the range of DW-NOMINATE coordinates.
Suggested Citation: Suggested Citation
Carroll, Royce and Lewis, Jeffrey B. and Poole, Keith T. and Rosenthal, Howard, Measuring Bias and Uncertainty in DW-NOMINATE Ideal Point Estimates via the Parametric Bootstrap (Summer 2009). Political Analysis, Vol. 17, Issue 3, pp. 261-275, 2009, Available at SSRN: https://ssrn.com/abstract=1448455 or http://dx.doi.org/10.1093/pan/mpp005
Feedback
Feedback to SSRN