Section author: Jonas Rafi

t-test: Independent samples

How to perform an independent samples t-test in jamovi:
  1. You need at least one continuous continuous dependent variable, and a nominal grouping variable with two levels (e.g. treatment / control).
    A correct setup should look similar to this:


  2. Select AnalysesT-TestsIndependent Samples T-Test.


  3. Drag and drop your outcome variable to Dependent Variables and your grouping variable to Grouping Variable.


  4. The result is shown in the right panel.



Those who have previous experience with SPSS may want to have a look at the side-by-side-comparison of how a t-test for independent samples is conducted in SPSS and jamovi.

Community resources

This video by Barton Poulson provides a more comprehensive introduction into this test.
For those, aiming to stretch even further to an in-depth introduction, you can read the respective section in the “Learning statistics with jamovi” web documentation or chapter 11.3 / 11.4 of the e-book by Danielle J. Navarro and David R. Foxcroft.