The aim of this study was to assess text generation and text transcription of children and youth with Autism Spectrum Disorder (ASD, n = 67) and Typically Developing (TD) peers (n = 67). Participants (80.6% male, ages 9-14) produced a free-style handwriting task analysed for written content and handwriting legibility and speed. Findings showed children and youth with ASD perform significantly poorer than TD peers for written content and handwriting legibility and speed. For children and youth with ASD, poor handwriting legibility predicted poor written content. For TD peers, fast handwriting predicted good written content. Collapsing both groups, ASD group membership negatively predicted written content, after controlling for handwriting legibility and speed. Practical implementations for the educational context are provided.
Keywords ASD • Written content • Handwriting legibility • Handwriting speedAutism Spectrum Disorder (ASD) is a pervasive neurological disorder characterized by unique communicative and social interactive behaviours, as well as repetitive and rigid patterns of behaviour, interests, or activities (APA, 2010; APA, 2013; ICD-10). Although there is high comorbidity of ASD with intellectual disability (ID), 30-50% of the individuals diagnosed with ASD have intelligence in the normative range (IQ > 70) (Matson and Shoemaker, 2009). Nevertheless, children and youth with ASD with intelligence in the normative range are challenged in different academic areas, including writing (e.g., Keen et al., 2016;Whitby & Mancil, 2009). Writing comprehends text generation and text transcription (Berninger et al., 1999;Zajic & Wilson, 2020). Text generation is the production of linguistic content and is analysed for its written content. Text transcription is the transcription of the written content to symbols that can be read (Berninger, 1999;Zajic & Wilson, 2020), for instance through handwriting. Handwriting is the act of recording words with the hand by means of a writing tool such as a pen or pencil (Rosenblum et al., 2003a) and is generally analysed for handwriting legibility and handwriting speed (Feder & Majnemer, 2007). For children and youth with ASD who are in the developmental phase of establishing functional handwriting that continuous to evolve in a more personalized style (grade 4 to 9), balancing higher-order text generation demands for producing written content as well as lowerorder text transcription demands for producing handwriting of proper legibility and speed is challenging and may affect their academic performance (Palmis et al., 2017;Whitby & Mancil, 2009).