节作者: 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:

    data_format_ttest_independent


  2. Select AnalysesT-TestsIndependent Samples T-Test.

    select_ttest_independent


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

    add_var_ttest_independent


  4. The result is shown in the right panel.

    output_ttest_independent


小技巧

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.