(MANOVA) with Bonferroni adjusted alpha levels revealed no significant main effect for emotion regulation according to EBD status. There was however, a multivariate main effect for sex with females presenting with higher levels of negative emotional intensity (e.g., frustration, anger, aggression) than males. A second MANOVA revealed no significant main effect for peer relationships according to EBD status and sex. Significant correlations revealed that the EBD only group experienced greater adverse peer interactions than the EBD plus developmental disorder group. These findings are important for educators and researchers involved in the development and evaluation of prevention and intervention programs for children with EBD.