4.1 Learning Objectives

After completing this lab, you should be able to do the following using R:

  • Conduct \(\chi^2\) tests of independence of 2 \(\times\) 2 categorical data.
  • Compute Cohen’s w and odds ratios.

Additionally, you should be able to do the following:

  • Report results of \(\chi^2\) tests in APA style.
  • Correctly interpret the results of \(\chi^2\) tests, including p values.
  • Correctly interpret odds ratios.