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DW-NOMINATE Data
DW-NOMINATE Program With Examples
W-NOMINATE Data
Optimal Classification Data
Common Space Data
The Original D-NOMINATE Data (1986-89)
Roll Call Data (Congresses 1 - 110)
Miscellaneous Data on Congressional Voting (Party Splits, etc.)
Other Data (Interest Group Ratings, etc.)
Software (W-NOMINATE, Parametric Bootstrap W-NOMINATE, Optimal Classification, QN, etc.)
Movies and Animated GIFs

PERL Working Group
POLI 100B: Congress
POLI 100C: Political Parties
POLI 100E: Interest Group Politics
POLI 100K: Railroads and American Politics
POLI 102G: Special Topics: The Polarization of American Politics
POLI 259: Bayes by the Beach
POLI 277: Measurement Theory
Expired Courses

Understanding Science and Scientific Methods: An Overview for Lawyers

POLS 3364 Legislative Processes
POLS 3383 Railroads and American Politics
POLS 6308 Political Economy
POLS 6386 Measurement Theory
POLS 6395 American Political Development
POLS 6482 Advanced Multivariate Statistics

45-733 Probability and Statistics I
45-734 Probability and Statistics II
45-855 Railroads, The First Big Business
45-883 Entrepreneurs and American Economic Growth

Andrew Carnegie
Bill Gates
James J. Hill
John D. Rockefeller
Cornelius Vanderbilt

73-476 American Economic History

Who is More Liberal, Clinton or Obama?
Rank Ordering of the 110^th Senate
Rank Ordering of the 110^th House
The 23 March 2007 House Vote on the Iraq War
Predicting the Senate Vote on Samuel Alito
The 16 December 2005 Iraq Resolution Vote in the 109^th House
The Last 50 Roll Call Votes in the U.S. Senate
Predicting the Senate Vote on John Roberts
Rank Ordering of the 109^th Senate
Rank Ordering of the 109^th House
Rank Ordering of the 108^th House
Rank Ordering of the 108^th Senate
Is John Kerry A Liberal?
John Kerry's Senate Voting Record
The Unidimensional Supreme Court
Overheads and Animations for James Madison Program Seminar at Princeton
Thurmond, Lott, and the Politics of Race
House Democratic Leader Race
Paul Wellstone (1944 - 2002) RIP
The Iraq War Resolution Vote
The 107th House Rank Ordering
The 107th Senate Rank Ordering
Who Changed the Most? Lieberman or McCain?
The Airline Bailout Bill of September 2001
Ashcroft Confirmation Vote: 1 February 2001
The Polarization of American Politics
Test Ban Treaty Vote: 13 October 1999
Two Dimensional Images of the Roll Calls in the 106^th House
The 106th Congress
The 105th Congress
The Impeachment of President Clinton