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Table 3 p-values from Scheffé post hoc tests for the CRIES score (intrusion and avoidance) and the respective effect size Cohen’s d

From: Symptoms of posttraumatic stress disorder among targets of school bullying

 ConflictModerate bullyingSevere bullyingTraumatized
Control
 p-value0.8380.014<0 .001< 0.001
 Cohen’s d0.3.91.72.0
Conflict
 p-value0.301< 0.001<0 .001
 Cohen’s d0.51.41.7
Moderate bullying
 p-value 0.040< .001
 Cohen’s d 0.81.1
Severe bullying
 p-value  0.451
 Cohen’s d  0.4