Analysis Exercises

The online data analysis system used on this site is called Survey Documentation and Analysis, which is developed and maintained by the Computer-assisted Survey Methods Program at the University of California, Berkeley. Documentation for SDA can be found on their website.

The following exercises will introduce you to the basic principles of analyzing survey data. You also can independently explore the data using SDA.

A. Two-variable relationships

The following two exercises illustrate how to create and interpret basic two-variable tables.
  • Exercise 1. Party identification and the presidential vote.
  • Exercise 2. Marital status and the congressional vote.

B. Three-variable relationships

These exercises illustrate how to further examine a two-variable relationship by introducing another variable into the analysis.

1. Examining potential confounding variables

  • Exercise 3. Attitude on social security spending and the presidential vote.
  • Exercise 4. Attitude on Obamacare and the presidential vote.

2. Examining potential intervening variables

  • Exercise 5. Financial situation and the presidential vote.
  • Exercise 6. Gender and the presidential vote.

3. Examining conditional relationships

  • Exercise 7. Attitude on Medicare vouchers and the presidential vote.
  • Exercise 8. Attitude on abortion and the presidential vote.

4. Joint influence of two independent variables

  • Exercise 9. Candidate character traits and the presidential vote.
  • Exercise 10. Income, religiosity, and the presidential vote.

C. Conducting your own research

This discussion provides guidance for using this dataset for more elaborate research projects.