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Auteur Andrea N. WITWER |
Documents disponibles écrits par cet auteur (4)



Examining the Validity of Autism Spectrum Disorder Subtypes / Andrea N. WITWER in Journal of Autism and Developmental Disorders, 38-9 (October 2008)
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[article]
inJournal of Autism and Developmental Disorders > 38-9 (October 2008) . - p.1611-1624
Titre : Examining the Validity of Autism Spectrum Disorder Subtypes Type de document : Texte imprimé et/ou numérique Auteurs : Andrea N. WITWER, Auteur ; Luc LECAVALIER, Auteur Année de publication : 2008 Article en page(s) : p.1611-1624 Langues : Anglais (eng) Mots-clés : Validity Subtype Autism Pervasive-developmental-disorder Autism-spectrum-disorder Index. décimale : PER Périodiques Résumé : The classification of autism spectrum disorders (ASDs) is a topic of debate among clinicians and researchers with many questioning the validity of the distinction among subtypes. This manuscript examines the validity of three ASD subtypes (Autism, Asperger’s, and PDDNOS) by reviewing 22 studies published between 1994 and 2006. We reviewed studies that examined differences between the subtypes in terms of clinical and demographic characteristics, neuropsychological profiles, comorbidity, and prognosis. Results largely did not support differences between autism and Asperger’s disorder based on current diagnostic criteria. Overall, the most salient group differences were noted when samples were categorized on IQ. Drawing definitive conclusions is difficult due to the inconsistent application of diagnostic criteria and circularity in methods. En ligne : http://dx.doi.org/10.1007/s10803-008-0541-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=604 [article] Examining the Validity of Autism Spectrum Disorder Subtypes [Texte imprimé et/ou numérique] / Andrea N. WITWER, Auteur ; Luc LECAVALIER, Auteur . - 2008 . - p.1611-1624.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 38-9 (October 2008) . - p.1611-1624
Mots-clés : Validity Subtype Autism Pervasive-developmental-disorder Autism-spectrum-disorder Index. décimale : PER Périodiques Résumé : The classification of autism spectrum disorders (ASDs) is a topic of debate among clinicians and researchers with many questioning the validity of the distinction among subtypes. This manuscript examines the validity of three ASD subtypes (Autism, Asperger’s, and PDDNOS) by reviewing 22 studies published between 1994 and 2006. We reviewed studies that examined differences between the subtypes in terms of clinical and demographic characteristics, neuropsychological profiles, comorbidity, and prognosis. Results largely did not support differences between autism and Asperger’s disorder based on current diagnostic criteria. Overall, the most salient group differences were noted when samples were categorized on IQ. Drawing definitive conclusions is difficult due to the inconsistent application of diagnostic criteria and circularity in methods. En ligne : http://dx.doi.org/10.1007/s10803-008-0541-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=604 Measurement invariance of the Child Behavior Checklist in autistic toddlers / Tara L. BENNINGER in Research in Autism Spectrum Disorders, 119 (January 2025)
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inResearch in Autism Spectrum Disorders > 119 (January 2025) . - p.102500
Titre : Measurement invariance of the Child Behavior Checklist in autistic toddlers Type de document : Texte imprimé et/ou numérique Auteurs : Tara L. BENNINGER, Auteur ; Megan NORRIS, Auteur ; Andrea N. WITWER, Auteur Article en page(s) : p.102500 Langues : Anglais (eng) Mots-clés : Factor analysis Measurement invariance Child behavior checklist Challenging behavior Autism spectrum disorder Toddlers Index. décimale : PER Périodiques Résumé : Background Challenging behavior has been examined in older children and adolescents with autism spectrum disorder (ASD), but less is known about these behaviors in toddlers, due in part to variability in measurement and limited instruments available for this population. To address this need, this study examined the psychometric properties of the Child Behavior Checklist (CBCL), a commonly used and widely validated measure of challenging behavior, in a group of toddlers with ASD. Method Participants included 496 toddlers aged 18-48 months with (n=398) and without (n= 100) a diagnosis of ASD. Psychometrics of the CBCL were analyzed including internal consistency, factor structure, and measurement invariance. Results Confirmatory factor analysis results indicated acceptable fit for the tested model, and internal consistency was largely acceptable. All levels of measurement invariance were tested for each subscale. The Emotional Reactivity, Anxious/Depressed, Withdrawn, and Aggressive Behavior subscales achieved scalar invariance, while the Attention Problems subscale achieved metric invariance, and the Somatic Complaints subscale did not achieve even configural invariance. Conclusions Results indicate the current CBCL conceptualization of challenging behavior in autistic toddlers is consistent with such constructs in older autistic children and provide preliminary support for the use of the CBCL to assess for challenging behavior in toddlers with ASD. Measurement invariance (MI) analyses support the construct validity of the CBCL in toddlers with ASD. However, based on the results of the MI analyses, some caution is warranted with specific subscales when conducting group comparison analyses between toddlers with and without ASD. En ligne : https://dx.doi.org/10.1016/j.rasd.2024.102500 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=545 [article] Measurement invariance of the Child Behavior Checklist in autistic toddlers [Texte imprimé et/ou numérique] / Tara L. BENNINGER, Auteur ; Megan NORRIS, Auteur ; Andrea N. WITWER, Auteur . - p.102500.
Langues : Anglais (eng)
in Research in Autism Spectrum Disorders > 119 (January 2025) . - p.102500
Mots-clés : Factor analysis Measurement invariance Child behavior checklist Challenging behavior Autism spectrum disorder Toddlers Index. décimale : PER Périodiques Résumé : Background Challenging behavior has been examined in older children and adolescents with autism spectrum disorder (ASD), but less is known about these behaviors in toddlers, due in part to variability in measurement and limited instruments available for this population. To address this need, this study examined the psychometric properties of the Child Behavior Checklist (CBCL), a commonly used and widely validated measure of challenging behavior, in a group of toddlers with ASD. Method Participants included 496 toddlers aged 18-48 months with (n=398) and without (n= 100) a diagnosis of ASD. Psychometrics of the CBCL were analyzed including internal consistency, factor structure, and measurement invariance. Results Confirmatory factor analysis results indicated acceptable fit for the tested model, and internal consistency was largely acceptable. All levels of measurement invariance were tested for each subscale. The Emotional Reactivity, Anxious/Depressed, Withdrawn, and Aggressive Behavior subscales achieved scalar invariance, while the Attention Problems subscale achieved metric invariance, and the Somatic Complaints subscale did not achieve even configural invariance. Conclusions Results indicate the current CBCL conceptualization of challenging behavior in autistic toddlers is consistent with such constructs in older autistic children and provide preliminary support for the use of the CBCL to assess for challenging behavior in toddlers with ASD. Measurement invariance (MI) analyses support the construct validity of the CBCL in toddlers with ASD. However, based on the results of the MI analyses, some caution is warranted with specific subscales when conducting group comparison analyses between toddlers with and without ASD. En ligne : https://dx.doi.org/10.1016/j.rasd.2024.102500 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=545 Positive Effects of Methylphenidate on Social Communication and Self-Regulation in Children with Pervasive Developmental Disorders and Hyperactivity / Laudan B. JAHROMI in Journal of Autism and Developmental Disorders, 39-3 (March 2009)
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[article]
inJournal of Autism and Developmental Disorders > 39-3 (March 2009) . - p.395-404
Titre : Positive Effects of Methylphenidate on Social Communication and Self-Regulation in Children with Pervasive Developmental Disorders and Hyperactivity Type de document : Texte imprimé et/ou numérique Auteurs : Laudan B. JAHROMI, Auteur ; Connie KASARI, Auteur ; David J. POSEY, Auteur ; Jaswinder GHUMAN, Auteur ; Erin KUSTAN, Auteur ; Louise RITZ, Auteur ; Elaine TIERNEY, Auteur ; Lisa S-Y. LEE, Auteur ; Andrea N. WITWER, Auteur ; Christopher J. MCDOUGLE, Auteur ; Michael G. AMAN, Auteur ; Benedetto VITIELLO, Auteur ; L. Eugene ARNOLD, Auteur ; Lawrence SCAHILL, Auteur ; James T. MCCRACKEN, Auteur Année de publication : 2009 Article en page(s) : p.395-404 Langues : Anglais (eng) Mots-clés : Methylphenidate Pervasive-developmental-disorders Hyperactivity Autism-spectrum-disorder Index. décimale : PER Périodiques Résumé : This report examined the effect of methylphenidate on social communication and self-regulation in children with pervasive developmental disorders and hyperactivity in a secondary analysis of RUPP Autism Network data. Participants were 33 children (29 boys) between the ages of 5 and 13 years who participated in a four-week crossover trial of placebo and increasing doses of methylphenidate given in random order each for one week. Observational measures of certain aspects of children’s social communication, self-regulation, and affective behavior were obtained each week. A significant positive effect of methylphenidate was seen on children’s use of joint attention initiations, response to bids for joint attention, self-regulation, and regulated affective state. The results go beyond the recent literature and suggest that methylphenidate may have positive effects on social behaviors in children with PDD and hyperactivity. En ligne : http://dx.doi.org/10.1007/s10803-008-0636-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=695 [article] Positive Effects of Methylphenidate on Social Communication and Self-Regulation in Children with Pervasive Developmental Disorders and Hyperactivity [Texte imprimé et/ou numérique] / Laudan B. JAHROMI, Auteur ; Connie KASARI, Auteur ; David J. POSEY, Auteur ; Jaswinder GHUMAN, Auteur ; Erin KUSTAN, Auteur ; Louise RITZ, Auteur ; Elaine TIERNEY, Auteur ; Lisa S-Y. LEE, Auteur ; Andrea N. WITWER, Auteur ; Christopher J. MCDOUGLE, Auteur ; Michael G. AMAN, Auteur ; Benedetto VITIELLO, Auteur ; L. Eugene ARNOLD, Auteur ; Lawrence SCAHILL, Auteur ; James T. MCCRACKEN, Auteur . - 2009 . - p.395-404.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 39-3 (March 2009) . - p.395-404
Mots-clés : Methylphenidate Pervasive-developmental-disorders Hyperactivity Autism-spectrum-disorder Index. décimale : PER Périodiques Résumé : This report examined the effect of methylphenidate on social communication and self-regulation in children with pervasive developmental disorders and hyperactivity in a secondary analysis of RUPP Autism Network data. Participants were 33 children (29 boys) between the ages of 5 and 13 years who participated in a four-week crossover trial of placebo and increasing doses of methylphenidate given in random order each for one week. Observational measures of certain aspects of children’s social communication, self-regulation, and affective behavior were obtained each week. A significant positive effect of methylphenidate was seen on children’s use of joint attention initiations, response to bids for joint attention, self-regulation, and regulated affective state. The results go beyond the recent literature and suggest that methylphenidate may have positive effects on social behaviors in children with PDD and hyperactivity. En ligne : http://dx.doi.org/10.1007/s10803-008-0636-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=695 Reliability and Validity of the Children’s Interview for Psychiatric Syndromes-Parent Version in Autism Spectrum Disorders / Andrea N. WITWER in Journal of Autism and Developmental Disorders, 42-9 (September 2012)
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[article]
inJournal of Autism and Developmental Disorders > 42-9 (September 2012) . - p.1949-1958
Titre : Reliability and Validity of the Children’s Interview for Psychiatric Syndromes-Parent Version in Autism Spectrum Disorders Type de document : Texte imprimé et/ou numérique Auteurs : Andrea N. WITWER, Auteur ; Luc LECAVALIER, Auteur ; Megan NORRIS, Auteur Année de publication : 2012 Article en page(s) : p.1949-1958 Langues : Anglais (eng) Mots-clés : Structured interview Autism spectrum disorder Psychiatric disorder Validity Reliability Index. décimale : PER Périodiques Résumé : The Children’s Interview for Psychiatric Syndromes-Parent Version (P-ChIPS) is a structured psychiatric interview designed to assess the presence of psychiatric disorders in children and adolescents. This study examined the reliability and validity of the P-ChIPS in 61 youngsters (6- to 17-years-old) with Autism Spectrum Disorders. Reliability analyses were conducted according to level of functioning and language level. Results indicated that interrater reliability values were largely in the good to excellent range. Concordance between the P-ChIPS and the Child and Adolescent Symptoms Inventory was fair for the majority of disorders. Percent overall agreement for most disorders was good, lending support to the validity of the P-ChIPS. The results of this study suggest that the P-ChIPS is appropriate for this population. En ligne : http://dx.doi.org/10.1007/s10803-012-1442-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=180 [article] Reliability and Validity of the Children’s Interview for Psychiatric Syndromes-Parent Version in Autism Spectrum Disorders [Texte imprimé et/ou numérique] / Andrea N. WITWER, Auteur ; Luc LECAVALIER, Auteur ; Megan NORRIS, Auteur . - 2012 . - p.1949-1958.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 42-9 (September 2012) . - p.1949-1958
Mots-clés : Structured interview Autism spectrum disorder Psychiatric disorder Validity Reliability Index. décimale : PER Périodiques Résumé : The Children’s Interview for Psychiatric Syndromes-Parent Version (P-ChIPS) is a structured psychiatric interview designed to assess the presence of psychiatric disorders in children and adolescents. This study examined the reliability and validity of the P-ChIPS in 61 youngsters (6- to 17-years-old) with Autism Spectrum Disorders. Reliability analyses were conducted according to level of functioning and language level. Results indicated that interrater reliability values were largely in the good to excellent range. Concordance between the P-ChIPS and the Child and Adolescent Symptoms Inventory was fair for the majority of disorders. Percent overall agreement for most disorders was good, lending support to the validity of the P-ChIPS. The results of this study suggest that the P-ChIPS is appropriate for this population. En ligne : http://dx.doi.org/10.1007/s10803-012-1442-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=180