BackgroundPractices to facilitate self-determination have not received appropriate attention in research concerning parents with intellectual disabilities (ID). Likewise, parenting interventions for adults with intellectual disabilities have seldom observed both parent and child behavioural outcomes. MethodsThis study evaluated the effectiveness of a parenting intervention embedded with self-determination facilitation practices for two dyads of a parent with intellectual disabilities and their young child. The interventions focused on increasing parents' ability to correctly implement steps of a parenting routine while reducing occurrence of challenging child behaviour. ResultsThe results of the study demonstrated two basic effects of correctly completed steps of the parenting routine and a reduction of challenging child behaviour. Parents also reported decreased feelings of stress during the routine following completion of the intervention. ConclusionsImplications for future research and replication of this pilot study are discussed.