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IQ and Internalising Symptoms in Adolescents with ASD.

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Edirisooriya, Monisha  ORCID logo
Dykiert, Dominika 
Auyeung, Bonnie 


Intelligence quotient (IQ), has been found to relate to the presence of internalising symptoms in autism spectrum disorder (ASD). This meta-analysis sought to clarify the direction of the relationship between IQ and two prevalent internalising symptoms, anxiety and depression, in adolescents with ASD. Secondly, this study aimed to highlight methodological factors contributing to inconsistent findings in existing research. Self-reported anxiety was found to be significantly higher in youth with a lower IQ, while depression was positively associated with IQ. Consequently, parents, schools and clinicians should be cautious of underestimating anxiety in youth with a lower IQ. However, care should also be taken to ensure adolescents with ASD without intellectual disabilities are not overlooked with regards to social and emotional support.


Funder: University of Edinburgh


Adolescents, Anxiety, Autism spectrum disorder, Depression, Intelligence quotient, Internalising symptoms, Adolescent, Anxiety, Anxiety Disorders, Autism Spectrum Disorder, Humans, Intelligence Tests, Parents

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J Autism Dev Disord

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Springer Science and Business Media LLC