Working within a neurodiversity paradigm, this project will investigate potential differences in how autistic and neurotypical (NT) children interact with each other (A-A and NT-NT), and between-groups (A-NT). It will also consider whether autistic and NT individuals perceive these social interactions differently. Interactions will be coded while children recount a social scenario story, and jointly complete a spaghetti tower task along a diffusion chain. A diffusion chain design will be used as it allows cumulative effects of transmission, which are not always apparent in dyadic settings, to be examined. Ten NT and ten autistic adults will code the interactions to see if there are differences in how they are perceived depending on the autistic diagnosis. Autistic and NT children within the interactions will also be asked about their experiences of the interaction to examine synergies and differences from alternative perspectives. The information from these studies will inform the production of a resource for use in the classroom to support the social and emotional development of autistic and NT children. This resource will help autistic children develop an understanding of NT children’s thoughts and behaviours, and assist NT children in their understanding of these in autistic children