Pre‐school children with and without developmental delay: behaviour problems and parenting stress over time

Background Children with intellectual disability are at heightened risk for behaviour problems and diagnosed mental disorder. Methods The present authors studied the early manifestation and continuity of problem behaviours in 205 pre‐school children with and without developmental delays. Results Behaviour problems were quite stable over the year from age 36–48 months. Children with developmental delays were rated higher on behaviour problems...