Prior to the steps below, enter the data as appropriate for the analyses (described elsewhere).
Get the mean and standard deviation of the dependent variable for each of the levels.
(Outcome~Factor) |> describeMoments()
Get the mean difference and its confidence interval.
(Outcome~Factor) |> estimateDifference()
Test the mean difference for statistical significance.
(Outcome~Factor) |> testDifference()
Get the standardized effect size for the mean difference.
(Outcome~Factor) |> standardizeDifference()