Outcomes of anti-bullying intervention for adults with intellectual disabilities.

Although existing research is scarce, evidence suggests that children and adults with intellectual disabilities may be at increased risk of being bullied (as they are for maltreatment generally) and possibly more likely than those without disabilities to also engage in bullying behavior. Despite significant clinical interest in bullying, we could find no published research on the outcomes of bullying intervention for individuals with intellectual disabilities. Adults with intellectual disabilities in three work center settings participated in one of two interventions for perpetrators and/or victims of bullying: (a) psychoeducational intervention with a cognitive behavioral orientation (n=20), or (b) the same intervention but with additional involvement of community stakeholders such as parents, the police, and local schools (n=22). A third work center (n=18) acted as a waiting list control comparison. Pre-intervention, 43% of participants reported that they had been bullied within the preceding three months and 28% identified themselves as having bullied others. Reports of being bullied decreased significantly within the two intervention groups over time but not in the control group. There were no differences between the two intervention groups, and no statistically significant reduction in self-reported bullying behavior. Initial data on this intervention suggest that its effects might be clinically meaningful with an associated Numbers Needed to Treat for reduction in exposure to bullying of 5.55. Copyright 2009 Elsevier Ltd. All rights reserved.