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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 2.1 Knowledge about aggression (RCT/CRCT)—short‐term follow‐up | 1 | 62 | Std. Mean Difference (IV, Random, 95% CI) | 0.86 [0.34, 1.38] |
| 2.1.1 Self‐paced duration—online | 1 | 62 | Std. Mean Difference (IV, Random, 95% CI) | 0.86 [0.34, 1.38] |
| 2.2 Knowledge about aggression (RCT/CRCT)—long‐term follow‐up | 1 | 291 | Risk Ratio (M‐H, Fixed, 95% CI) | 1.26 [0.90, 1.75] |
