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Inclusion and exclusion criteria
| Inclusion Criteria | Exclusion Criteria |
|---|---|
| Year of publication: 2014–2024 | More than 50% of the study population are students or pupils. |
| Language: German or English | Training descriptions without any effectiveness analysis (qualitative or quantitative) |
| Training conducted online or in a hybrid format | |
| Training is conducted synchronously or asynchronously. |
