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Showing 1 to 15 of 29 results Save | Export
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Raza, Sarah; Zwaigenbaum, Lonnie; Sacrey, Lori-Ann R.; Bryson, Susan; Brian, Jessica; Smith, Isabel M.; Reid, Kyle; Roberts, Wendy; Szatmari, Peter; Vaillancourt, Tracy; Roncadin, Caroline; Garon, Nancy – Journal of Autism and Developmental Disorders, 2019
This study examined the potential of the short form of the Quantitative Checklist for Autism in Toddlers (Q-CHAT-10) to identify autism spectrum disorder (ASD) in a high-risk sibling cohort. High-risk (HR; siblings of children diagnosed with ASD) and low-risk (LR; no family history of ASD) toddlers were assessed prospectively at 18 and 24 months…
Descriptors: Autism, Pervasive Developmental Disorders, Toddlers, At Risk Persons
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Conlon, Olivia; Volden, Joanne; Smith, Isabel M.; Duku, Eric; Zwaigenbaum, Lonnie; Waddell, Charlotte; Szatmari, Peter; Mirenda, Pat; Vaillancourt, Tracy; Bennett, Teresa; Georgiades, Stelios; Elsabbagh, Mayada; Ungar, Wendy. J. – Journal of Autism and Developmental Disorders, 2019
Possible gender differences in manifestations of autism spectrum disorder (ASD) were examined using data on production of narratives. The Expression, Reception and Recall of Narrative Instrument (ERRNI; Bishop, Expression, Reception and Recall of Narrative Instrument, Harcourt assessment, London, 2004) was administered to a sample of matched…
Descriptors: Gender Differences, Pragmatics, Autism, Pervasive Developmental Disorders
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Paterson, Sarah J.; Wolff, Jason J.; Elison, Jed T.; Winder-Patel, Breanna; Zwaigenbaum, Lonnie; Estes, Annette; Pandey, Juhi; Schultz, Robert T.; Botteron, Kelly; Dager, Stephen R.; Hazlett, Heather C.; Piven, Joseph; Piven, J.; Hazlett, H. C.; Chappell, C.; Dager, S.; Estes, A.; Shaw, D.; Botteron, K. N.; McKinstry, R. C.; Constantino, J.; Pruett, J.; Schultz, R. T.; Paterson, S.; Zwaigenbaum, L.; Elison, J.; Evans, A. C.; Collins, D. L.; Pike, G. B.; Fonov, V.; Kostopoulos, P.; Das, S.; Gerig, G.; Styner, M.; Gu, H. – Journal of Autism and Developmental Disorders, 2019
The present study investigated the relationship between infant temperament characteristics and autism spectrum disorder (ASD) risk status. Temperament was examined at 6, 12, and 24 months in 282 infants at high familial risk for ASD and 114 low-risk controls using the Infant Behavior Questionnaire-Revised and Early Childhood Behavior…
Descriptors: Autism, Pervasive Developmental Disorders, Infants, At Risk Persons
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Mahdi, Soheil; Albertowski, Katja; Almodayfer, Omar; Arsenopoulou, Vaia; Carucci, Sara; Dias, José Carlos; Khalil, Mohammad; Knüppel, Ane; Langmann, Anika; Lauritsen, Marlene Briciet; da Cunha, Graccielle Rodrigues; Uchiyama, Tokio; Wolff, Nicole; Selb, Melissa; Granlund, Mats; de Vries, Petrus J.; Zwaigenbaum, Lonnie; Bölte, Sven – Journal of Autism and Developmental Disorders, 2018
This is the fourth international preparatory study designed to develop International Classification of Functioning, Disability and Health (ICF, and Children and Youth version, ICF-CY) Core Sets for Autism Spectrum Disorder (ASD). Examine functioning of individuals diagnosed with ASD as documented by the ICF-CY in a variety of clinical settings. A…
Descriptors: Disabilities, Pervasive Developmental Disorders, Autism, Models
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Zaidman-Zait, Anat; Mirenda, Pat; Szatmari, Peter; Duku, Eric; Smith, Isabel M.; Vaillancourt, Tracy; Volden, Joanne; Waddell, Charlotte; Bennett, Teresa; Zwaigenbaum, Lonnie; Elsabaggh, Mayada; Georgiades, Stelios – Journal of Autism and Developmental Disorders, 2018
This study described empirically derived profiles of parents' personal and social coping resources in a sample of 207 families of children diagnosed with autism spectrum disorder. Latent Profile Analysis identified four family profiles based on socieoeconomic risk, coping strategy utilization, family functioning, available social supports, and…
Descriptors: Coping, Pervasive Developmental Disorders, Autism, Behavior Problems
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Estes, Annette; Munson, Jeffrey; St. John, Tanya; Dager, Stephen R.; Rodda, Amy; Botteron, Kelly; Hazlett, Heather; Schultz, Robert T.; Zwaigenbaum, Lonnie; Piven, Joseph; Guralnick, Michael J.; Chappell, J. C.; Dager, S.; Shaw, D; McKinstry, R.; Constantino, J.; Pruett, J.; Schultz, R.; Paterson, S.; Evans, A. C.; Collins, D. L.; Pike, G. B.; Kostopolous, P.; Das, S.; Gerig, G.; Styner, M.; Gu, H.; Sullivan, P.; Wright, G. – Journal of Autism and Developmental Disorders, 2018
Preschool-aged siblings of children with ASD are at high-risk (HR) for ASD and related challenges, but little is known about their emerging peer competence and friendships. Parents are the main providers of peer-relationship opportunities during preschool. Understanding parental challenges supporting early peer relationships is needed for optimal…
Descriptors: Parents, Parent Participation, Peer Relationship, Birth Order
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Dimian, Adele F.; Botteron, Kelly N.; Dager, Stephen R.; Elison, Jed T.; Estes, Annette M.; Pruett, John R., Jr.; Schultz, Robert T.; Zwaigenbaum, Lonnie; Piven, Joseph; Wolff, Jason J. – Journal of Autism and Developmental Disorders, 2017
Prevalence of self-injurious behavior (SIB) is as high as 50% among children with autism spectrum disorder (ASD). Identification of risk factors for the development of SIB is critical to early intervention and prevention. However, there is little empirical research utilizing a prospective design to identify early risk factors for SIB. The purpose…
Descriptors: Risk, Self Destructive Behavior, Autism, Pervasive Developmental Disorders
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Sacrey, Lori-Ann R.; Zwaigenbaum, Lonnie; Szatmari, Peter; Bryson, Susan; Georgiades, Stelios; Brian, Jessica; Smith, Isabel M.; Vaillancourt, Tracy; Garon, Nancy; Roncadin, Caroline; Elsabbagh, Mayada – Journal of Autism and Developmental Disorders, 2017
Prospective studies of infant siblings of children diagnosed with autism spectrum disorder (ASD) provide a unique opportunity to characterize ASD as it unfolds. A critical question that remains unanswered is whether and how these children with ASD resemble other children identified from the community, including those with no family history. The…
Descriptors: Autism, Pervasive Developmental Disorders, Preschool Children, Symptoms (Individual Disorders)
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Jitlina, Katia; Zumbo, Bruno; Mirenda, Pat; Ford, Laurie; Bennett, Teresa; Georgiades, Stelios; Waddell, Charlotte; Smith, Isabel M.; Volden, Joanne; Duku, Eric; Zwaigenbaum, Lonnie; Szatmari, Peter; Vaillancourt, Tracy; Elsabbagh, Mayada – Journal of Autism and Developmental Disorders, 2017
Although anxiety is frequently reported in children with autism spectrum disorder (ASD), existing anxiety scales are often psychometrically inappropriate for this population. This study examined the internal structure, reliability, convergent and discriminant validity of the Spence Children's Anxiety Scale-Parent Report (SCAS-P; Spence 1999) in…
Descriptors: Autism, Pervasive Developmental Disorders, Psychometrics, Children
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Zwaigenbaum, Lonnie; Nicholas, David B.; Muskat, Barbara; Kilmer, Christopher; Newton, Amanda S.; Craig, William R.; Ratnapalan, Savithiri; Cohen-Silver, Justine; Greenblatt, Andrea; Roberts, Wendy; Sharon, Raphael – Journal of Autism and Developmental Disorders, 2016
This study aimed to characterize the perspectives of health professionals who care for children with autism spectrum disorder (ASD) in the emergency department (ED) and to determine what strategies could optimize care. Ten physicians and twelve nurses were interviewed individually. Questions related to experiences, processes, clinical…
Descriptors: Health Services, Caregiver Attitudes, Pervasive Developmental Disorders, Emergency Programs
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Flanagan, Helen E.; Smith, Isabel M.; Vaillancourt, Tracy; Duku, Eric; Szatmari, Peter; Bryson, Susan; Fombonne, Eric; Mirenda, Pat; Roberts, Wendy; Volden, Joanne; Waddell, Charlotte; Zwaigenbaum, Lonnie; Bennett, Teresa; Elsabbagh, Mayada; Georgiades, Stelios – Journal of Autism and Developmental Disorders, 2015
We examined the stability of cognitive and adaptive behaviour standard scores in children with autism spectrum disorder (ASD) between diagnosis and school entry approximately age 6. IQ increased 18 points in 2-year-olds, 12 points in 3-year-olds, and 9 points in 4-year-olds (N = 281). Adaptive behaviour scores increased 4 points across age groups…
Descriptors: Autism, Pervasive Developmental Disorders, Preschool Children, Mental Retardation
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Germani, Tamara; Zwaigenbaum, Lonnie; Bryson, Susan; Brian, Jessica; Smith, Isabel; Roberts, Wendy; Szatmari, Peter; Roncadin, Caroline; Sacrey, Lori Ann R.; Garon, Nancy; Vaillancourt, Tracy – Journal of Autism and Developmental Disorders, 2014
This study assessed sensory processing differences between 24-month infants at high-risk of autism spectrum disorder (ASD), each with an older sibling with ASD, and low-risk infants with no family history of ASD. Sensory processing differences were assessed using the Infant/Toddler Sensory Profile, a parent-reported measure. Groups were compared…
Descriptors: Pervasive Developmental Disorders, Autism, Siblings, Infants
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Georgiades, Stelios; Boyle, Michael; Szatmari, Peter; Hanna, Steven; Duku, Eric; Zwaigenbaum, Lonnie; Bryson, Susan; Fombonne, Eric; Volden, Joanne; Mirenda, Pat; Smith, Isabel; Roberts, Wendy; Vaillancourt, Tracy; Waddell, Charlotte; Bennett, Teresa; Elsabbagh, Mayada; Thompson, Ann – Journal of Autism and Developmental Disorders, 2014
The latent class structure of autism symptoms from the time of diagnosis to age 6 years was examined in a sample of 280 children with autism spectrum disorder. Factor mixture modeling was performed on 26 algorithm items from the Autism Diagnostic Interview-Revised at diagnosis (Time 1) and again at age 6 (Time 2). At Time 1, a…
Descriptors: Autism, Pervasive Developmental Disorders, Symptoms (Individual Disorders), Children
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Zaidman-Zait, Anat; Mirenda, Pat; Duku, Eric; Szatmari, Peter; Georgiades, Stelios; Volden, Joanne; Zwaigenbaum, Lonnie; Vaillancourt, Tracy; Bryson, Susan; Smith, Isabel; Fombonne, Eric; Roberts, Wendy; Waddell, Charlotte; Thompson, Ann – Journal of Autism and Developmental Disorders, 2014
Path analysis within a structural equation modeling framework was employed to examine the relationships between two types of parent stress and children's externalizing and internalizing behaviors over a 4-year period, in a sample of 184 mothers of young children with autism spectrum disorder. Parent stress was measured with the Parenting Stress…
Descriptors: Path Analysis, Structural Equation Models, Stress Variables, Child Rearing
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Duku, Eric; Vaillancourt, Tracy; Szatmari, Peter; Georgiades, Stelios; Zwaigenbaum, Lonnie; Smith, Isabel M.; Bryson, Susan; Fombonne, Eric; Mirenda, Pat; Roberts, Wendy; Volden, Joanne; Waddell, Charlotte; Thompson, Ann; Bennett, Teresa – Journal of Autism and Developmental Disorders, 2013
The purpose of this study was to examine the measurement properties of the Social Responsiveness Scale in an accelerated longitudinal sample of 4-year-old preschool children with the complementary approaches of categorical confirmatory factor analysis and Rasch analysis. Measurement models based on the literature and other hypothesized measurement…
Descriptors: Factor Analysis, Validity, Measures (Individuals), Autism
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