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Investigating associations between birth order and autism diagnostic phenotypes

Birth order effects have been linked to variability in intelligence, educational attainment and sexual orientation. First- and later-born children have been linked to an increased likelihood of an Autism Spectrum Disorder (ASD) diagnosis, with a smaller body of evidence implicating decreases in cognitive functioning with increased birth order. The present study investigated the potential association between birth order and ASD diagnostic phenotypes in a large and representative population sample.

Emily Spackman

Emily recently completed a two-year postdoc at Stanford University, following their PhD in Developmental Psychology from the University of Melbourne in 2024.

Professor Mirko Uljarević

Mirko is a medically trained research-focused academic with a background in developmental psychology, psychometrics, and big data science. His research takes a life-span perspective and is driven by the urgent need to improve outcomes for people on the autism spectrum and with other neurodevelopmental and neuropsy

Olivia Rowland

Registrar Clinical Psychologist

Speech Pathology Perth

Evidence-based paediatric speech therapy in Perth, tailored to each child’s needs.

Psychology

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