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- Title
Measuring Bias and Uncertainty in DW-NOMINATE Ideal Point Estimates via the Parametric Bootstrap.
- Authors
Royce Carroll; Jeffrey B. Lewis; James Lo; Keith T. Poole; Howard Rosenthal
- 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%â4% of the range of DW-NOMINATE coordinates.
- Subjects
UNITED States; UNITED States. Congress; FIX-point estimation; RESEARCH bias; UNITED States legislators; POLITICAL science research
- Publication
Political Analysis, 2009, Vol 17, Issue 3, p261
- ISSN
1047-1987
- Publication type
Article
- DOI
10.1093/pan/mpp005