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Auteur I. M. SMITH |
Documents disponibles écrits par cet auteur (22)
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Psychometric Properties of the Spence Children's Anxiety Scale: Parent Report in Children with Autism Spectrum Disorder / K. JITLINA in Journal of Autism and Developmental Disorders, 47-12 (December 2017)
[article]
Titre : Psychometric Properties of the Spence Children's Anxiety Scale: Parent Report in Children with Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : K. JITLINA, Auteur ; B. ZUMBO, Auteur ; P. MIRENDA, Auteur ; L. FORD, Auteur ; Teresa BENNETT, Auteur ; S. GEORGIADES, Auteur ; C. WADDELL, Auteur ; I. M. SMITH, Auteur ; J. VOLDEN, Auteur ; E. DUKU, Auteur ; Lonnie ZWAIGENBAUM, Auteur ; P. SZATMARI, Auteur ; T. VAILLANCOURT, Auteur ; M. ELSABBAGH, Auteur Année de publication : 2017 Article en page(s) : p.3847-3856 Langues : Anglais (eng) Mots-clés : Anxiety Factor analysis Measurement Parent-report Validity Index. décimale : PER Périodiques Résumé : 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 238 school-aged children with ASD. While confirmatory factor analysis did not support the original six-correlated-factor structure, structural support as well as acceptable internal consistency and convergent validity was found for Generalized Anxiety, Separation Anxiety, Panic, and Agoraphobia subscales. Use of the SCAS-P in its original form for assessment in children with ASD was not supported. However, four subscales showed viability, and may benefit re-analyses of existing SCAS-P data and future scale adaptations for research and clinical purposes. En ligne : http://dx.doi.org/10.1007/s10803-017-3110-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=325
in Journal of Autism and Developmental Disorders > 47-12 (December 2017) . - p.3847-3856[article] Psychometric Properties of the Spence Children's Anxiety Scale: Parent Report in Children with Autism Spectrum Disorder [Texte imprimé et/ou numérique] / K. JITLINA, Auteur ; B. ZUMBO, Auteur ; P. MIRENDA, Auteur ; L. FORD, Auteur ; Teresa BENNETT, Auteur ; S. GEORGIADES, Auteur ; C. WADDELL, Auteur ; I. M. SMITH, Auteur ; J. VOLDEN, Auteur ; E. DUKU, Auteur ; Lonnie ZWAIGENBAUM, Auteur ; P. SZATMARI, Auteur ; T. VAILLANCOURT, Auteur ; M. ELSABBAGH, Auteur . - 2017 . - p.3847-3856.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 47-12 (December 2017) . - p.3847-3856
Mots-clés : Anxiety Factor analysis Measurement Parent-report Validity Index. décimale : PER Périodiques Résumé : 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 238 school-aged children with ASD. While confirmatory factor analysis did not support the original six-correlated-factor structure, structural support as well as acceptable internal consistency and convergent validity was found for Generalized Anxiety, Separation Anxiety, Panic, and Agoraphobia subscales. Use of the SCAS-P in its original form for assessment in children with ASD was not supported. However, four subscales showed viability, and may benefit re-analyses of existing SCAS-P data and future scale adaptations for research and clinical purposes. En ligne : http://dx.doi.org/10.1007/s10803-017-3110-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=325 Symptom trajectories in the first 18 months and autism risk in a prospective high-risk cohort / Lonnie ZWAIGENBAUM in Journal of Child Psychology and Psychiatry, 62-12 (December 2021)
[article]
Titre : Symptom trajectories in the first 18 months and autism risk in a prospective high-risk cohort Type de document : Texte imprimé et/ou numérique Auteurs : Lonnie ZWAIGENBAUM, Auteur ; Jessica BRIAN, Auteur ; I. M. SMITH, Auteur ; Lori-Ann R. SACREY, Auteur ; M. FRANCHINI, Auteur ; Susan E. BRYSON, Auteur ; T. VAILLANCOURT, Auteur ; V. ARMSTRONG, Auteur ; E. DUKU, Auteur ; P. SZATMARI, Auteur ; W. ROBERTS, Auteur ; C. RONCADIN, Auteur Article en page(s) : p.1435-1443 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder/epidemiology Autistic Disorder Child Child, Preschool Cohort Studies Humans Infant Prospective Studies Siblings Autism spectrum disorder early detection high-risk studies longitudinal studies Index. décimale : PER Périodiques Résumé : BACKGROUND: Although early autism spectrum disorder (ASD) detection strategies tend to focus on differences at a point in time, behavioral symptom trajectories may also be informative. METHODS: Developmental trajectories of early signs of ASD were examined in younger siblings of children diagnosed with ASD (n?=?499) and infants with no family history of ASD (n?=?177). Participants were assessed using the Autism Observation Scale for Infants (AOSI) from 6 to 18?months. Diagnostic outcomes were determined at age 3?years blind to previous assessments. RESULTS: Semiparametric group-based modeling using AOSI scores identified three distinct trajectories: Group 1 ('Low', n?=?435, 64.3%) was characterized by a low level and stable evolution of ASD signs, group 2 ('Intermediate', n?=?180, 26.6%) had intermediate and stable levels, and group 3 ('Inclining', n?=?61, 9.3%) had higher and progressively elevated levels of ASD signs. Among younger siblings, ASD rates at age 3 varied by trajectory of early signs and were highest in the Inclining group, membership in which was highly specific (94.5%) but poorly sensitive (28.5%) to ASD. Children with ASD assigned to the inclining trajectory had more severe symptoms at age 3, but developmental and adaptive functioning did not differ by trajectory membership. CONCLUSIONS: These prospective data emphasize variable early-onset patterns and the importance of a multipronged approach to early surveillance and screening for ASD. En ligne : http://dx.doi.org/10.1111/jcpp.13417 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=456
in Journal of Child Psychology and Psychiatry > 62-12 (December 2021) . - p.1435-1443[article] Symptom trajectories in the first 18 months and autism risk in a prospective high-risk cohort [Texte imprimé et/ou numérique] / Lonnie ZWAIGENBAUM, Auteur ; Jessica BRIAN, Auteur ; I. M. SMITH, Auteur ; Lori-Ann R. SACREY, Auteur ; M. FRANCHINI, Auteur ; Susan E. BRYSON, Auteur ; T. VAILLANCOURT, Auteur ; V. ARMSTRONG, Auteur ; E. DUKU, Auteur ; P. SZATMARI, Auteur ; W. ROBERTS, Auteur ; C. RONCADIN, Auteur . - p.1435-1443.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 62-12 (December 2021) . - p.1435-1443
Mots-clés : Autism Spectrum Disorder/epidemiology Autistic Disorder Child Child, Preschool Cohort Studies Humans Infant Prospective Studies Siblings Autism spectrum disorder early detection high-risk studies longitudinal studies Index. décimale : PER Périodiques Résumé : BACKGROUND: Although early autism spectrum disorder (ASD) detection strategies tend to focus on differences at a point in time, behavioral symptom trajectories may also be informative. METHODS: Developmental trajectories of early signs of ASD were examined in younger siblings of children diagnosed with ASD (n?=?499) and infants with no family history of ASD (n?=?177). Participants were assessed using the Autism Observation Scale for Infants (AOSI) from 6 to 18?months. Diagnostic outcomes were determined at age 3?years blind to previous assessments. RESULTS: Semiparametric group-based modeling using AOSI scores identified three distinct trajectories: Group 1 ('Low', n?=?435, 64.3%) was characterized by a low level and stable evolution of ASD signs, group 2 ('Intermediate', n?=?180, 26.6%) had intermediate and stable levels, and group 3 ('Inclining', n?=?61, 9.3%) had higher and progressively elevated levels of ASD signs. Among younger siblings, ASD rates at age 3 varied by trajectory of early signs and were highest in the Inclining group, membership in which was highly specific (94.5%) but poorly sensitive (28.5%) to ASD. Children with ASD assigned to the inclining trajectory had more severe symptoms at age 3, but developmental and adaptive functioning did not differ by trajectory membership. CONCLUSIONS: These prospective data emphasize variable early-onset patterns and the importance of a multipronged approach to early surveillance and screening for ASD. En ligne : http://dx.doi.org/10.1111/jcpp.13417 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=456 The Autism Parent Screen for Infants: Predicting risk of autism spectrum disorder based on parent-reported behavior observed at 6-24 months of age / Lori-Ann R. SACREY in Autism, 22-3 (April 2018)
[article]
Titre : The Autism Parent Screen for Infants: Predicting risk of autism spectrum disorder based on parent-reported behavior observed at 6-24 months of age Type de document : Texte imprimé et/ou numérique Auteurs : Lori-Ann R. SACREY, Auteur ; Susan E. BRYSON, Auteur ; Lonnie ZWAIGENBAUM, Auteur ; Jessica BRIAN, Auteur ; I. M. SMITH, Auteur ; W. ROBERTS, Auteur ; P. SZATMARI, Auteur ; T. VAILLANCOURT, Auteur ; C. RONCADIN, Auteur ; N. GARON, Auteur Article en page(s) : p.322-334 Langues : Anglais (eng) Mots-clés : autism spectrum disorder high-risk siblings parent report prospective screening Index. décimale : PER Périodiques Résumé : 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 autism spectrum disorder) who did not develop autism spectrum disorder (n = 138 and 79, respectively). Participants were assessed prospectively at 6, 9, 12, 15, 18, and 24 months of age. At 36 months, a blind independent diagnostic assessment for autism spectrum disorder was completed. Parent report on the Autism Parent Screen for Infants was examined in relation to diagnostic outcome and risk status (i.e. high-risk sibling with autism spectrum disorder, high-risk sibling without autism spectrum disorder, and low-risk control). The results indicated that from 6 months of age, total score on the Autism Parent Screen for Infants differentiated between the siblings with autism spectrum disorder and the other two groups. The sensitivity, specificity, and positive and negative predictive validity of the Autism Parent Screen for Infants highlight its potential for the early screening of autism spectrum disorder in high-risk cohorts. En ligne : http://dx.doi.org/10.1177/1362361316675120 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=358
in Autism > 22-3 (April 2018) . - p.322-334[article] The Autism Parent Screen for Infants: Predicting risk of autism spectrum disorder based on parent-reported behavior observed at 6-24 months of age [Texte imprimé et/ou numérique] / Lori-Ann R. SACREY, Auteur ; Susan E. BRYSON, Auteur ; Lonnie ZWAIGENBAUM, Auteur ; Jessica BRIAN, Auteur ; I. M. SMITH, Auteur ; W. ROBERTS, Auteur ; P. SZATMARI, Auteur ; T. VAILLANCOURT, Auteur ; C. RONCADIN, Auteur ; N. GARON, Auteur . - p.322-334.
Langues : Anglais (eng)
in Autism > 22-3 (April 2018) . - p.322-334
Mots-clés : autism spectrum disorder high-risk siblings parent report prospective screening Index. décimale : PER Périodiques Résumé : 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 autism spectrum disorder) who did not develop autism spectrum disorder (n = 138 and 79, respectively). Participants were assessed prospectively at 6, 9, 12, 15, 18, and 24 months of age. At 36 months, a blind independent diagnostic assessment for autism spectrum disorder was completed. Parent report on the Autism Parent Screen for Infants was examined in relation to diagnostic outcome and risk status (i.e. high-risk sibling with autism spectrum disorder, high-risk sibling without autism spectrum disorder, and low-risk control). The results indicated that from 6 months of age, total score on the Autism Parent Screen for Infants differentiated between the siblings with autism spectrum disorder and the other two groups. The sensitivity, specificity, and positive and negative predictive validity of the Autism Parent Screen for Infants highlight its potential for the early screening of autism spectrum disorder in high-risk cohorts. En ligne : http://dx.doi.org/10.1177/1362361316675120 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=358 The reach-to-grasp movement in infants later diagnosed with autism spectrum disorder: a high-risk sibling cohort study / Lori-Ann R. SACREY in Journal of Neurodevelopmental Disorders, 10-1 (December 2018)
[article]
Titre : The reach-to-grasp movement in infants later diagnosed with autism spectrum disorder: a high-risk sibling cohort study Type de document : Texte imprimé et/ou numérique Auteurs : Lori-Ann R. SACREY, Auteur ; Lonnie ZWAIGENBAUM, Auteur ; Susan E. BRYSON, Auteur ; Jessica BRIAN, Auteur ; I. M. SMITH, Auteur Année de publication : 2018 Article en page(s) : 41 p. Langues : Anglais (eng) Mots-clés : Autism Autism spectrum disorder Baby siblings Infant siblings Motor Motor skills Reaching Index. décimale : PER Périodiques Résumé : BACKGROUND: Although autism spectrum disorder (ASD) is characterized by impairments in social communication and the presence of repetitive behavior and/or restricted interests, there is evidence that motor impairments may be a contributing factor to the ASD phenotype. The purpose of this study was to examine the motor act of reaching-to-grasp in children at high risk (HR; with an older sibling diagnosed with ASD) and low-risk (LR; no family history of ASD) for ASD. METHODS: Children were compared for differences in reaching-to-grasp based on sibling status and diagnostic outcome. Children were enrolled between 6 and 12 months of age and the reach-to-grasp movement was scored at 6, 9, (where available) 12, 15, 18, 24, and 36 months of age using the qualitative Skilled Reaching Rating Scale to determine the presence of any group-, age-, or sex-related differences in the mechanics of the reach-to-grasp movement using a Mixed Models analysis. At 36 months, all children underwent a gold-standard diagnostic assessment, which resulted in three outcome groups: HR children diagnosed with ASD (HR-ASD; n = 10), HR children not diagnosed with ASD (HR-N; n = 10), and low-risk children not diagnosed with ASD (LR; n = 10). RESULTS: The group of children who were later diagnosed with ASD (HR-ASD group) showed higher (worse) total scores on the reach-to-grasp movement, as well as higher scores on the components of Orient, Lift, and Pronate compared to children in the LR and HR-N groups. CONCLUSIONS: Our results support the growing literature indicating that children who are later diagnosed with ASD show impaired early motor performance. These results highlight the importance of early surveillance of children who are at elevated risk for ASD, and early initiatives should focus on early signs of the phenotype, including both movement and sensory differences (prodromal signs) prior to the emergence of diagnostic characteristics. En ligne : http://dx.doi.org/10.1186/s11689-018-9259-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=386
in Journal of Neurodevelopmental Disorders > 10-1 (December 2018) . - 41 p.[article] The reach-to-grasp movement in infants later diagnosed with autism spectrum disorder: a high-risk sibling cohort study [Texte imprimé et/ou numérique] / Lori-Ann R. SACREY, Auteur ; Lonnie ZWAIGENBAUM, Auteur ; Susan E. BRYSON, Auteur ; Jessica BRIAN, Auteur ; I. M. SMITH, Auteur . - 2018 . - 41 p.
Langues : Anglais (eng)
in Journal of Neurodevelopmental Disorders > 10-1 (December 2018) . - 41 p.
Mots-clés : Autism Autism spectrum disorder Baby siblings Infant siblings Motor Motor skills Reaching Index. décimale : PER Périodiques Résumé : BACKGROUND: Although autism spectrum disorder (ASD) is characterized by impairments in social communication and the presence of repetitive behavior and/or restricted interests, there is evidence that motor impairments may be a contributing factor to the ASD phenotype. The purpose of this study was to examine the motor act of reaching-to-grasp in children at high risk (HR; with an older sibling diagnosed with ASD) and low-risk (LR; no family history of ASD) for ASD. METHODS: Children were compared for differences in reaching-to-grasp based on sibling status and diagnostic outcome. Children were enrolled between 6 and 12 months of age and the reach-to-grasp movement was scored at 6, 9, (where available) 12, 15, 18, 24, and 36 months of age using the qualitative Skilled Reaching Rating Scale to determine the presence of any group-, age-, or sex-related differences in the mechanics of the reach-to-grasp movement using a Mixed Models analysis. At 36 months, all children underwent a gold-standard diagnostic assessment, which resulted in three outcome groups: HR children diagnosed with ASD (HR-ASD; n = 10), HR children not diagnosed with ASD (HR-N; n = 10), and low-risk children not diagnosed with ASD (LR; n = 10). RESULTS: The group of children who were later diagnosed with ASD (HR-ASD group) showed higher (worse) total scores on the reach-to-grasp movement, as well as higher scores on the components of Orient, Lift, and Pronate compared to children in the LR and HR-N groups. CONCLUSIONS: Our results support the growing literature indicating that children who are later diagnosed with ASD show impaired early motor performance. These results highlight the importance of early surveillance of children who are at elevated risk for ASD, and early initiatives should focus on early signs of the phenotype, including both movement and sensory differences (prodromal signs) prior to the emergence of diagnostic characteristics. En ligne : http://dx.doi.org/10.1186/s11689-018-9259-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=386 Trajectories of Symptom Severity in Children with Autism: Variability and Turning Points through the Transition to School / S. GEORGIADES in Journal of Autism and Developmental Disorders, 52-1 (January 2022)
[article]
Titre : Trajectories of Symptom Severity in Children with Autism: Variability and Turning Points through the Transition to School Type de document : Texte imprimé et/ou numérique Auteurs : S. GEORGIADES, Auteur ; P. A. TAIT, Auteur ; P. D. MCNICHOLAS, Auteur ; E. DUKU, Auteur ; Lonnie ZWAIGENBAUM, Auteur ; I. M. SMITH, Auteur ; Teresa BENNETT, Auteur ; M. ELSABBAGH, Auteur ; Connor M. KERNS, Auteur ; P. MIRENDA, Auteur ; W. J. UNGAR, Auteur ; T. VAILLANCOURT, Auteur ; J. VOLDEN, Auteur ; C. WADDELL, Auteur ; A. ZAIDMAN-ZAIT, Auteur ; S. GENTLES, Auteur ; P. SZATMARI, Auteur Article en page(s) : p.392-401 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder/diagnosis Autistic Disorder/diagnosis Child Humans Language Multivariate Analysis Schools Autism spectrum disorder Chronogeneity Trajectories Turning points Index. décimale : PER Périodiques Résumé : This study examined the trajectories of autistic symptom severity in an inception cohort of 187 children with ASD assessed across four time points from diagnosis to age 10. Trajectory groups were derived using multivariate cluster analysis. A two trajectory/cluster solution was selected. Change in trajectory slopes revealed a turning point marked by plateauing in symptom reduction during the period of transition to school (age 6) for one of the two trajectories. Trajectories were labelled: Continuously Improving (27%) and Improving then Plateauing (73% of sample). Children in the two trajectories differed in levels of symptom severity, language, cognitive, and adaptive functioning skills. Study findings can inform the development of more personalized services for children with ASD transitioning into the school system. En ligne : http://dx.doi.org/10.1007/s10803-021-04949-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=455
in Journal of Autism and Developmental Disorders > 52-1 (January 2022) . - p.392-401[article] Trajectories of Symptom Severity in Children with Autism: Variability and Turning Points through the Transition to School [Texte imprimé et/ou numérique] / S. GEORGIADES, Auteur ; P. A. TAIT, Auteur ; P. D. MCNICHOLAS, Auteur ; E. DUKU, Auteur ; Lonnie ZWAIGENBAUM, Auteur ; I. M. SMITH, Auteur ; Teresa BENNETT, Auteur ; M. ELSABBAGH, Auteur ; Connor M. KERNS, Auteur ; P. MIRENDA, Auteur ; W. J. UNGAR, Auteur ; T. VAILLANCOURT, Auteur ; J. VOLDEN, Auteur ; C. WADDELL, Auteur ; A. ZAIDMAN-ZAIT, Auteur ; S. GENTLES, Auteur ; P. SZATMARI, Auteur . - p.392-401.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 52-1 (January 2022) . - p.392-401
Mots-clés : Autism Spectrum Disorder/diagnosis Autistic Disorder/diagnosis Child Humans Language Multivariate Analysis Schools Autism spectrum disorder Chronogeneity Trajectories Turning points Index. décimale : PER Périodiques Résumé : This study examined the trajectories of autistic symptom severity in an inception cohort of 187 children with ASD assessed across four time points from diagnosis to age 10. Trajectory groups were derived using multivariate cluster analysis. A two trajectory/cluster solution was selected. Change in trajectory slopes revealed a turning point marked by plateauing in symptom reduction during the period of transition to school (age 6) for one of the two trajectories. Trajectories were labelled: Continuously Improving (27%) and Improving then Plateauing (73% of sample). Children in the two trajectories differed in levels of symptom severity, language, cognitive, and adaptive functioning skills. Study findings can inform the development of more personalized services for children with ASD transitioning into the school system. En ligne : http://dx.doi.org/10.1007/s10803-021-04949-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=455 Types of Services and Costs of Programs for Preschoolers with Autism Spectrum Disorder Across Sectors: A Comparison of Two Canadian Provinces / K. TSIPLOVA in Journal of Autism and Developmental Disorders, 49-6 (June 2019)
PermalinkVariability in Verbal and Nonverbal Communication in Infants at Risk for Autism Spectrum Disorder: Predictors and Outcomes / M. FRANCHINI in Journal of Autism and Developmental Disorders, 48-10 (October 2018)
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