Background and Objectives: Performing recreational and leisure activities are an important part of children's school function, including children with autism spectrum disorder (ASD). The purpose of this study was to examine the association between motor proficiency, performing recreational, and leisure activities in school for the children with autism spectrum disorder. Methods: In this cross-sectional study, 52 students with autism spectrum disorder aged 7-12 years old were selected by available sampling method and the students with co morbidity were excluded from the study. Data were collected using a school function assessment (SFA) and the Bruininks-Oseretsky test of motor proficiency-Second Edition (BOTMP-2). Results: The results of Pearson correlation coefficient showed that there was a significant positive linear relationship with moderate strength between performing recreational and leisure activities and components of motor proficiency, including gross motor skills (P = 0.001, r = 0.41), upper limb coordination (P=0.000, r=0.44), and fine motor skills (P = 0.00, r = 0.58). Also, the results of multiple linear regression model indicated that only the fine motor skills as one of the components of motor proficiency had the ability to predict performing recreational and leisure activities(β = 0.5, P = 0.002). Conclusion: The results of this study revealed that there was a relationship between performing recreational, leisure activities, and motor proficiency and the highest correlation was observed with fine motor skills, upper limb coordination, and gross motor skills, respectively. Also, fine motor skills had a moderate predictive ability. Thus, in order to improve student's function in their school, perceptual motor interventions would be an important part of their treatment program.

Background: One of the executive functions affected by autism spectrum disorder is set-shifting. Set-shifting leads to adaptive behaviors in different life situations, including school function.Objectives: Accordingly, this study aimed to examine the relationship between set-shifting and school function in children with autism spectrum disorder. Methods: In this cross-sectional (descriptive-analytic) study, a total of 52 students aged between 7 and 12 years old with autism spectrum disorder were selected through convenient sampling technique in schools specifically for the autistic children in Tehran, Iran (2017-2018. The required data were collected using school function assessment (SFA) and behavior rating inventory of executive function (BRIEF) and were analyzed using the Pearson correlation coefficient and regression analysis. Results: The results showed that the shifting subscale of BRIEF has a significant reverse relationship with school function (P < 0.5). It should be noted that in BRIEF, the higher score indicates further damage. Also, the results of regression analysis revealed a predictive role for set-shifting in the school function of children with autism spectrum disorder (β = -0.67, P < 0.05). Conclusions: Set-shifting is associated with the school function of children with autism spectrum disorders. Furthermore, setshifting can predict the school function and autistic children with problems in set-shifting are expected to have a weak school function.