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Øien, Roald A.; Hart, Logan; Schjølberg, Synnve; Wall, Carla A.; Kim, Elizabeth S.; Nordahl-Hansen, Anders; Eisemann, Martin R.; Chawarska, Katarzyna; Volkmar, Fred R.; Shic, Frederick – Journal of Autism and Developmental Disorders, 2017
Sex differences in typical development can provide context for understanding ASD. Baron-Cohen ("Trends Cogn Sci" 6(6):248-254, 2002) suggested ASD could be considered an extreme expression of normal male, compared to female, phenotypic profiles. In this paper, sex-specific M-CHAT scores from N = 53,728 18-month-old toddlers, including n…
Descriptors: Gender Differences, Parent Attitudes, Toddlers, Genetics
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Beuker, Karin T.; Schjolberg, Synnve; Lie, Kari Kveim; Donders, Rogier; Lappenschaar, Martijn; Swinkels, Sophie H. N.; Buitelaar, Jan K. – Journal of Autism and Developmental Disorders, 2013
It is unclear whether symptoms of autism spectrum disorder (ASD) in young children in the population fit the three-factor structure of ASD as described in the DSM-IV, and cluster together in individual subjects. This study analysed questionnaire data on ASD symptoms filled in by mothers of 11,332 18-month-old children that was collected in the…
Descriptors: Questionnaires, Mothers, Autism, Factor Structure