Paired / repeated measures

Compares two or more conditions measured on the same respondents (within-subject), held in separate columns.

When to use it

When each row has several measurements to compare — for example, a pre-test and a post-test column, or three time points — rather than separate groups of people.

Inputs

  • Conditions — two or more numeric columns, one per condition/time point.

With two conditions you get a paired test; with three or more, a repeated-measures test.

Options

Method

Detect automatically, Parametric (paired t / repeated-measures ANOVA), or Non-parametric (Wilcoxon signed-rank / Friedman).

Assumption checks

Auto / Yes / No — includes a normality check on the differences. (With Detect automatically, assumption checks must be on.)

Other

Effect size / post-hoc, Verbal indicators (in-table columns), Verbal report (dropdown for how much written interpretation: None / Key findings / Significant only / Full), Number conditions, and Plots.

Output

  • A descriptives table across conditions.

  • A normality table (when checks are on).

  • The test result with the appropriate statistic, p, and effect size (e.g. Cohen’s dz, generalized eta-squared, Kendall’s W, or rank-biserial correlation).

  • Post-hoc comparisons for three or more conditions.

Notes

  • Rows missing any condition are dropped (complete-case analysis), so all conditions are compared on the same respondents.