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Descriptives of Impulsivity by Gender and Age Group
| Gender | Age group | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Total sample | Males | Females | 13 years | 14 years | 15 years | 16 years | 17 years | ≥18 years | |
| M (SD) | M (SD) | M (SD) | M (SD) | M (SD) | M (SD) | M (SD) | M (SD) | M (SD) | |
| Impulsivity | 7.9 (4.8) | 8.1 (5.1) | 7.8 (4.4) | 7.5 (4.8) | 8.2 (4.8) | 7.7 (4.8) | 8.1 (4.8) | 8.1 (4.6) | 7.9 (4.7) |
| t | 2.39 | ||||||||
| F | 3.08 | ||||||||
| p | <0.001 | 0.012 | |||||||
| Cohen’s d | 0.06 | ||||||||
| η2 | 0.01 | ||||||||
