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Assessment of Autism Symptoms from 6 to 18 Months of Age Using the Autism Observation Scale for Infants in a Prospective High-Risk Cohort
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Zwaigenbaum, Lonnie; Bryson, Susan E.; Brian, Jessica; Smith, Isabel M.; Sacrey, Lori; Armstrong, Vickie; Roberts, Wendy; Szatmari, Peter; Garon, Nancy; Vaillancourt, Tracy; Roncadin, Caroline – Child Development, 2021
The objectives were to characterize behavioral signs of autism spectrum disorder (ASD) in younger siblings of diagnosed children (high-risk; HR) and examine classification features of the Autism Observation Scale for Infants (AOSI). Participants (501 HR and 180 low-risk [LR]) were assessed between 6 and 18 months using the AOSI and at age 3 for…
Descriptors: Autism, Pervasive Developmental Disorders, Symptoms (Individual Disorders), Infant Behavior
Construct Validity of the First-Year Inventory (FYI Version 2.0) in 12-Month-Olds at High-Risk for Autism Spectrum Disorder
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Lee, Helen Y.; Vigen, Cheryl; Zwaigenbaum, Lonnie; Smith, Isabel M.; Brian, Jessica; Watson, Linda R.; Crais, Elizabeth R.; Baranek, Grace T. – Autism: The International Journal of Research and Practice, 2021
This study examines the construct validity of the First-Year Inventory 2.0 with respect to other established instruments in a sample of high-risk infant siblings of children with Autism Spectrum Disorder. The First-Year Inventory 2.0 is a parent-report screening instrument designed to identify 12-month-old infants at risk for an eventual diagnosis…
Descriptors: Test Validity, Construct Validity, Autism, Pervasive Developmental Disorders
The Autism Parent Screen for Infants: Predicting Risk of Autism Spectrum Disorder Based on Parent-Reported Behavior Observed at 6-24 Months of Age
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Sacrey, Lori-Ann R.; Bryson, Susan; Zwaigenbaum, Lonnie; Brian, Jessica; Smith, Isabel M.; Roberts, Wendy; Szatmari, Peter; Vaillancourt, Tracy; Roncadin, Caroline; Garon, Nancy – Autism: The International Journal of Research and Practice, 2018
This study examined whether a novel parent-report questionnaire, the Autism Parent Screen for Infants, could differentiate infants subsequently diagnosed with autism spectrum disorder from a high-risk cohort (siblings of children diagnosed with autism spectrum disorder (n = 66)) from high-risk and low-risk comparison infants (no family history of…
Descriptors: Autism, Infants, Pervasive Developmental Disorders, Parents