Do social information-processing models explain aggressive behaviour by children with mild intellectual disabilities in residential care?

The team tested a social-information-processing model on kids with mild intellectual disability living in group homes. They used numbers and arrows to map how thoughts turn into hitting or shouting. The kids were already in care, so the setting was real-life, not a lab playroom.

The model that fit best skipped the "decision" step. Instead, angry ideas popped out straight from the child’s stored social rules. If the child held many aggressive rules, more aggressive answers came out—no pause button in between.

Cudré-Mauroux (2010) and Willner (2015) both say medicines for aggression in ID rarely beat placebo. Their reviews line up with Galuska et al. (2006): the trouble is in the child’s rule book, not brain chemistry.

Levin et al. (2014) and Neuringer et al. (2007) later built personality and risk clusters in adults with ID. These studies extend the same idea—traits and stored rules predict aggression—but they shift the lens from child thinking styles to adult personality types.

Saville et al. (2002) looked at staff feelings instead of child thoughts. Together the papers form a loop: child rules spark behavior, staff emotions react, and the cycle keeps spinning unless we break it at the rule stage.

You can’t wait for a "decision" that never happens. Teach new social rules and practice them until they outnumber the old aggressive ones. Role-play, video modeling, or rule-cards work because they rewrite the response bank, not the child’s pause button.