Challenging behaviour and its risk factors in children and young people in a special school setting : a four wave longitudinal study

Background Longitudinal research is needed to strengthen evidence for risk factors for challenging behaviour in children with intellectual disabilities and to understand patterns of change over time. Methods Data on challenging behaviour were collected for 225 students in one school over four annual time points and a range of potential risk correlates. Data were analysed using Generalised Estimating Equations. Results Prevalence of challenging behaviour, aggression and self-injury did not vary significantly over time. Stereotyped behaviours increased over the 4-year period. Challenging behaviour was associated with lower levels of adaptive skills and autism. Stereotyped behaviour increased with age. Self-injurious behaviour was less likely to be shown in children with profound intellectual disabilities over time. Conclusions These findings are consistent with previous research in terms of potential risk factors identified. Implications for schools include proactive interventions for children with intellectual disabilities at high risk; especially those with autism and poorer adaptive skills