NOW AVAILABLE: Essentials of Poltical Analysis 7e | R Companion 4e | SPSS 7e | Stata 5e | Excel 1e 🎵
NOW AVAILABLE: Essentials 7e | R Companion 4e | SPSS 7e | Stata 5e | Excel 1e 🎵
NOW AVAILABLE: Essentials 7e | More Textbooks 🎵

Political Science Data, Methods, and Replication Resources


Learn Political Analysis
WEEKLY THEME
Foundations of Statistical InferenceSee lesson plan

Teach Political Analysis
Use our Interactive Syllabus Builder to create a course outline with ease! Integrate the classic text, Essentials of Political Analysis, with Companions for SPSS, Stata, Excel & R.
SPSS Companion textbook coverStata Companion textbook coverExcel Companion textbook coverR Companion, fourth edition cover
MORE FOR TEACHERS: Sample Syllabi, Classroom Resources, Teaching Assistant App (for term review), and Online R Demos.
Find Data
More Q than A Blog
ORIGINAL PROJECT: Studying Presidents
Portrait of President Thomas Jefferson
Pres. Thomas Jefferson's Positions on Roll Call Votes in Congress
This data is part of a larger project to identify the policy preferences of all U.S. Presidents. See index.