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Détail de l'auteur
Auteur Luc LECAVALIER |
Documents disponibles écrits par cet auteur (49)
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The structure of the Autism Diagnostic Interview-Revised: diagnostic and phenotypic implications / Anne V. SNOW in Journal of Child Psychology and Psychiatry, 50-6 (June 2009)
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Titre : The structure of the Autism Diagnostic Interview-Revised: diagnostic and phenotypic implications Type de document : Texte imprimé et/ou numérique Auteurs : Anne V. SNOW, Auteur ; Luc LECAVALIER, Auteur ; Carrie HOUTS, Auteur Année de publication : 2009 Article en page(s) : p.734-742 Langues : Anglais (eng) Mots-clés : Autistic-disorder pervasive-developmental-disorder assessment factor-analysis classification Index. décimale : PER Périodiques Résumé : Background: Multivariate statistics can assist in refining the nosology and diagnosis of pervasive developmental disorders (PDD) and also contribute important information for genetic studies. The Autism Diagnostic Interview-Revised (ADI-R) is one of the most widely used assessment instruments in the field of PDD. The current study investigated its factor structure and convergence with measures of adaptive, language, and intellectual functioning.
Methods: Analyses were conducted on 1,861 individuals with PDD between the ages of 4 and 18 years (mean = 8.3, SD = 3.2). ADI-R scores were submitted to confirmatory factor analysis (CFA) and exploratory factor analysis (EFA). Analyses were conducted according to verbal status (n = 1,329 verbal, n = 532 nonverbal) and separately for algorithm items only and for all items. ADI-R scores were correlated with scores on measures of adaptive, language, and intellectual functioning.
Results: Several factor solutions were examined and compared. CFAs suggested that two- and three-factor solutions were similar, and slightly superior to a one-factor solution. EFAs and measures of internal consistency provided some support for a two-factor solution consisting of social and communication behaviors and restricted and repetitive behaviors. Measures of functioning were not associated with ADI-R domain scores in nonverbal children, but negatively correlated in verbal children.
Conclusions: Overall, data suggested that autism symptomatology can be explained statistically with a two-domain model. It also pointed to different symptoms susceptible to be helpful in linkage analyses. Implications of a two-factor model are discussed.En ligne : http://dx.doi.org/10.1111/j.1469-7610.2008.02018.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=756
in Journal of Child Psychology and Psychiatry > 50-6 (June 2009) . - p.734-742[article] The structure of the Autism Diagnostic Interview-Revised: diagnostic and phenotypic implications [Texte imprimé et/ou numérique] / Anne V. SNOW, Auteur ; Luc LECAVALIER, Auteur ; Carrie HOUTS, Auteur . - 2009 . - p.734-742.
Langues : Anglais (eng)
in Journal of Child Psychology and Psychiatry > 50-6 (June 2009) . - p.734-742
Mots-clés : Autistic-disorder pervasive-developmental-disorder assessment factor-analysis classification Index. décimale : PER Périodiques Résumé : Background: Multivariate statistics can assist in refining the nosology and diagnosis of pervasive developmental disorders (PDD) and also contribute important information for genetic studies. The Autism Diagnostic Interview-Revised (ADI-R) is one of the most widely used assessment instruments in the field of PDD. The current study investigated its factor structure and convergence with measures of adaptive, language, and intellectual functioning.
Methods: Analyses were conducted on 1,861 individuals with PDD between the ages of 4 and 18 years (mean = 8.3, SD = 3.2). ADI-R scores were submitted to confirmatory factor analysis (CFA) and exploratory factor analysis (EFA). Analyses were conducted according to verbal status (n = 1,329 verbal, n = 532 nonverbal) and separately for algorithm items only and for all items. ADI-R scores were correlated with scores on measures of adaptive, language, and intellectual functioning.
Results: Several factor solutions were examined and compared. CFAs suggested that two- and three-factor solutions were similar, and slightly superior to a one-factor solution. EFAs and measures of internal consistency provided some support for a two-factor solution consisting of social and communication behaviors and restricted and repetitive behaviors. Measures of functioning were not associated with ADI-R domain scores in nonverbal children, but negatively correlated in verbal children.
Conclusions: Overall, data suggested that autism symptomatology can be explained statistically with a two-domain model. It also pointed to different symptoms susceptible to be helpful in linkage analyses. Implications of a two-factor model are discussed.En ligne : http://dx.doi.org/10.1111/j.1469-7610.2008.02018.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=756
[article]
Titre : Thoughts on the DSM-5 Type de document : Texte imprimé et/ou numérique Auteurs : Luc LECAVALIER, Auteur Article en page(s) : p.507-509 Langues : Anglais (eng) Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1177/1362361313500865 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=211
in Autism > 17-5 (September 2013) . - p.507-509[article] Thoughts on the DSM-5 [Texte imprimé et/ou numérique] / Luc LECAVALIER, Auteur . - p.507-509.
Langues : Anglais (eng)
in Autism > 17-5 (September 2013) . - p.507-509
Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1177/1362361313500865 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=211 Using qualitative methods to guide scale development for anxiety in youth with autism spectrum disorder / Karen E. BEARSS in Autism, 20-6 (August 2016)
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Titre : Using qualitative methods to guide scale development for anxiety in youth with autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Karen E. BEARSS, Auteur ; Christopher A TAYLOR, Auteur ; Michael G. AMAN, Auteur ; Robin WHITTEMORE, Auteur ; Luc LECAVALIER, Auteur ; Judith MILLER, Auteur ; Jill PRITCHETT, Auteur ; Bryson GREEN, Auteur ; Lawrence SCAHILL, Auteur Article en page(s) : p.663-672 Langues : Anglais (eng) Mots-clés : anxiety autism spectrum disorder content validity focus group instrument development qualitative methods Index. décimale : PER Périodiques Résumé : Anxiety is common in youth with autism spectrum disorder. Despite this common co-occurrence, studies targeting anxiety in this population are hindered by the under-developed state of measures in youth with autism spectrum disorder. Content validity (the extent to which an instrument measures the domain of interest) and an instrument’s relevance to the patient population are key components of measurement development. This article describes the application of qualitative research methods in the initial development of a parent-rated instrument of anxiety symptoms in youth with autism spectrum disorder. Overall, 48 parents of 45 children (aged 3–17?years) with autism spectrum disorder and at least mild anxiety participated in one of six focus groups at two sites (three groups per site). Systematic coding of the focus group transcripts identified broad themes reflecting the situations and events that trigger anxiety in children with autism spectrum disorder, the behavioral manifestations of anxiety in children with autism spectrum disorder, the parent and the child’s own response to anxiety, and broad behavioral patterns that could be associated with anxiety. From the focus group data, investigators generated 52 candidate items for a parent-rating of anxiety in youth with autism spectrum disorder. This report provides a detailed description of these early steps in developing a patient-oriented outcome measure. En ligne : http://dx.doi.org/10.1177/1362361315601012 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=290
in Autism > 20-6 (August 2016) . - p.663-672[article] Using qualitative methods to guide scale development for anxiety in youth with autism spectrum disorder [Texte imprimé et/ou numérique] / Karen E. BEARSS, Auteur ; Christopher A TAYLOR, Auteur ; Michael G. AMAN, Auteur ; Robin WHITTEMORE, Auteur ; Luc LECAVALIER, Auteur ; Judith MILLER, Auteur ; Jill PRITCHETT, Auteur ; Bryson GREEN, Auteur ; Lawrence SCAHILL, Auteur . - p.663-672.
Langues : Anglais (eng)
in Autism > 20-6 (August 2016) . - p.663-672
Mots-clés : anxiety autism spectrum disorder content validity focus group instrument development qualitative methods Index. décimale : PER Périodiques Résumé : Anxiety is common in youth with autism spectrum disorder. Despite this common co-occurrence, studies targeting anxiety in this population are hindered by the under-developed state of measures in youth with autism spectrum disorder. Content validity (the extent to which an instrument measures the domain of interest) and an instrument’s relevance to the patient population are key components of measurement development. This article describes the application of qualitative research methods in the initial development of a parent-rated instrument of anxiety symptoms in youth with autism spectrum disorder. Overall, 48 parents of 45 children (aged 3–17?years) with autism spectrum disorder and at least mild anxiety participated in one of six focus groups at two sites (three groups per site). Systematic coding of the focus group transcripts identified broad themes reflecting the situations and events that trigger anxiety in children with autism spectrum disorder, the behavioral manifestations of anxiety in children with autism spectrum disorder, the parent and the child’s own response to anxiety, and broad behavioral patterns that could be associated with anxiety. From the focus group data, investigators generated 52 candidate items for a parent-rating of anxiety in youth with autism spectrum disorder. This report provides a detailed description of these early steps in developing a patient-oriented outcome measure. En ligne : http://dx.doi.org/10.1177/1362361315601012 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=290 Validation of DSM-IV Model of Psychiatric Syndromes in Children with Autism Spectrum Disorders / Luc LECAVALIER in Journal of Autism and Developmental Disorders, 39-2 (February 2009)
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Titre : Validation of DSM-IV Model of Psychiatric Syndromes in Children with Autism Spectrum Disorders Type de document : Texte imprimé et/ou numérique Auteurs : Luc LECAVALIER, Auteur ; Kenneth D. GADOW, Auteur ; Carla DEVINCENT, Auteur ; Michael C. EDWARDS, Auteur Année de publication : 2009 Article en page(s) : p.278-289 Langues : Anglais (eng) Mots-clés : Validity Autism Pervasive-developmental-disorder Psychiatric-disorder Nosology Factor-analysis Index. décimale : PER Périodiques Résumé : The objective of this study was to assess the internal construct validity of the DSM-IV as a conceptual model for characterizing behavioral syndromes in children with ASD. Parent and teachers completed the Child Symptom Inventory-4, a DSM-IV-referenced rating scale, for 6-to-12 year old clinic referrals with an ASD (N = 498). Ratings were submitted to confirmatory factor analysis and models were assessed for fit. Results were also compared to those obtained for a sample of non-ASD psychiatric outpatient school-age children. Fit indices ranged from acceptable to good for the ASD samples and compared well to those obtained in typically developing children. Findings lend support to the notion that DSM-IV syndromes may be an appropriate conceptual model for characterizing psychopathology in ASD. En ligne : http://dx.doi.org/10.1007/s10803-008-0622-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=684
in Journal of Autism and Developmental Disorders > 39-2 (February 2009) . - p.278-289[article] Validation of DSM-IV Model of Psychiatric Syndromes in Children with Autism Spectrum Disorders [Texte imprimé et/ou numérique] / Luc LECAVALIER, Auteur ; Kenneth D. GADOW, Auteur ; Carla DEVINCENT, Auteur ; Michael C. EDWARDS, Auteur . - 2009 . - p.278-289.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 39-2 (February 2009) . - p.278-289
Mots-clés : Validity Autism Pervasive-developmental-disorder Psychiatric-disorder Nosology Factor-analysis Index. décimale : PER Périodiques Résumé : The objective of this study was to assess the internal construct validity of the DSM-IV as a conceptual model for characterizing behavioral syndromes in children with ASD. Parent and teachers completed the Child Symptom Inventory-4, a DSM-IV-referenced rating scale, for 6-to-12 year old clinic referrals with an ASD (N = 498). Ratings were submitted to confirmatory factor analysis and models were assessed for fit. Results were also compared to those obtained for a sample of non-ASD psychiatric outpatient school-age children. Fit indices ranged from acceptable to good for the ASD samples and compared well to those obtained in typically developing children. Findings lend support to the notion that DSM-IV syndromes may be an appropriate conceptual model for characterizing psychopathology in ASD. En ligne : http://dx.doi.org/10.1007/s10803-008-0622-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=684 Validity of DSM-IV syndromes in preschoolers with autism spectrum disorders / Luc LECAVALIER in Autism, 15-5 (September 2011)
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Titre : Validity of DSM-IV syndromes in preschoolers with autism spectrum disorders Type de document : Texte imprimé et/ou numérique Auteurs : Luc LECAVALIER, Auteur ; Kenneth D. GADOW, Auteur ; Carla DEVINCENT, Auteur ; Carrie HOUTS, Auteur ; Michael C. EDWARDS, Auteur Année de publication : 2011 Article en page(s) : p.527-543 Langues : Anglais (eng) Mots-clés : autism autism spectrum disorder factor analysis nosology psychiatric disorder preschoolers validity Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1177/1362361310391115 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=144
in Autism > 15-5 (September 2011) . - p.527-543[article] Validity of DSM-IV syndromes in preschoolers with autism spectrum disorders [Texte imprimé et/ou numérique] / Luc LECAVALIER, Auteur ; Kenneth D. GADOW, Auteur ; Carla DEVINCENT, Auteur ; Carrie HOUTS, Auteur ; Michael C. EDWARDS, Auteur . - 2011 . - p.527-543.
Langues : Anglais (eng)
in Autism > 15-5 (September 2011) . - p.527-543
Mots-clés : autism autism spectrum disorder factor analysis nosology psychiatric disorder preschoolers validity Index. décimale : PER Périodiques En ligne : http://dx.doi.org/10.1177/1362361310391115 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=144 Validity of the Aberrant Behavior Checklist in Children with Autism Spectrum Disorder / Aaron J. KAAT in Journal of Autism and Developmental Disorders, 44-5 (May 2014)
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