“…Aided communicators often have to navigate through multiple pages or screens to locate and select the desired vocabulary items, and many AAC programs are not conducive to grammaticalization (Binger & Light, 2008;Sutton et al, 2002). Without regular practice, the individual may struggle to execute the motor plan with the level of automaticity needed to make communicating with the device efficient (Clarke et al, 2017;Ibrahim et al, 2018;Savolainen et al, 2020a;Soto et al, 2019;Valencia et al, 2020). In the long term, persistent lack of self-repair may delay aided communicators' expressive language development and impact their learning of grammar, especially when compounded with operational challenges of aided AAC use; thus, immediate self-repair as part of language intervention and instruction may be especially important for children using aided AAC.…”