#### between-subjects

**Hypothesis testing**

| Type           | Equal variance? | Test                      | *p*-value adjustment? | Function used                     |
| :------------- | :-------------- | :------------------------ | :-------------------- | :-------------------------------- |
| Parametric     | No              | Games-Howell test         | Yes                   | `PMCMRplus::gamesHowellTest()`    |
| Parametric     | Yes             | Student's *t*-test        | Yes                   | `stats::pairwise.t.test()`        |
| Non-parametric | No              | Dunn test                 | Yes                   | `PMCMRplus::kwAllPairsDunnTest()` |
| Robust         | No              | Yuen's trimmed means test | Yes                   | `WRS2::lincon()`                  |
| Bayesian       | `NA`            | Student's *t*-test        | `NA`                  | `BayesFactor::ttestBF()`          |

**Effect size estimation**

Not supported.

#### within-subjects

**Data requirement**: Paired pairwise tests assume exactly **one observation per
subject per condition**. If your data has multiple trials per cell, aggregate
first (e.g., take the mean).

**Hypothesis testing**

| Type           | Test                      | *p*-value adjustment? | Function used                     |
| :------------- | :------------------------ | :-------------------- | :-------------------------------- |
| Parametric     | Student's *t*-test        | Yes                   | `stats::pairwise.t.test()`        |
| Non-parametric | Durbin-Conover test       | Yes                   | `PMCMRplus::durbinAllPairsTest()` |
| Robust         | Yuen's trimmed means test | Yes                   | `WRS2::rmmcp()`                   |
| Bayesian       | Student's *t*-test        | `NA`                  | `BayesFactor::ttestBF()`          |

**Effect size estimation**

Not supported.
