Developmental trajectories of behaviour problems and prosocial behaviours of children with intellectual disabilities in a population‐based cohort

Background The study examined developmental trajectories of prosocial behaviours, internalising and externalising behaviour problems in children with intellectual disabilities (ID) between pre‐school and middle childhood. Method Growth models examined the best‐fitting trajectories for internalising and externalising behaviour problems, as well as prosocial behaviours, in 555 children with ID between the ages of three and 11 years from the UK...