56 recherche sur le mot-clé 'Factor analysis'

Factor Analysis of the Childhood Autism Rating Scale in a Sample of Two Year Olds with an Autism Spectrum Disorder / E. MOULTON in Journal of Autism and Developmental Disorders, 49-7 (July 2019)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 49-7 (July 2019) . - p.2733-2746 Titre : Factor Analysis of the Childhood Autism Rating Scale in a Sample of Two Year Olds with an Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : E. MOULTON, Auteur ; K. BRADBURY, Auteur ; M. BARTON, Auteur ; Deborah A. FEIN, Auteur Article en page(s) : p.2733-2746 Langues : Anglais (eng) Mots-clés : ASD assessment  Cars  Factor analysis Index. décimale : PER Périodiques Résumé : The Childhood Autism Rating Scale (CARS), (Schopler et al. in J Autism Dev Disord 10(1):91-103, 1980) is a 15-item observation-based rating scale that yields a total score reflective of autism symptom severity. This study investigated the factor structure of the CARS in a sample of 2-year-old children with DSM-IV-TR (American Psychiatric Association in Diagnostic and statistical manual of mental disorders, 4th edn. American Psychiatric Publishing, Washington, 2000) diagnoses of AD or PDD-NOS. Following a preliminary internal cross-validation, principal axis factor analysis was completed (N = 282). The results indicate a three-factor solution: Social Communication, Stereotyped Behaviors and Sensory Sensitivities, and Emotional Reactivity. The factors are meaningful, with the first two reflective of DSM-5 symptom domains. This study supports the continued relevance of the CARS in ASD assessment, and extends its utility in 2-year-old children. En ligne : http://dx.doi.org/10.1007/s10803-016-2936-9 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=4019 [article] Factor Analysis of the Childhood Autism Rating Scale in a Sample of Two Year Olds with an Autism Spectrum Disorder [Texte imprimé et/ou numérique] / E. MOULTON, Auteur ; K. BRADBURY, Auteur ; M. BARTON, Auteur ; Deborah A. FEIN, Auteur . - p.2733-2746. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 49-7 (July 2019) . - p.2733-2746 Mots-clés : ASD assessment  Cars  Factor analysis Index. décimale : PER Périodiques Résumé : The Childhood Autism Rating Scale (CARS), (Schopler et al. in J Autism Dev Disord 10(1):91-103, 1980) is a 15-item observation-based rating scale that yields a total score reflective of autism symptom severity. This study investigated the factor structure of the CARS in a sample of 2-year-old children with DSM-IV-TR (American Psychiatric Association in Diagnostic and statistical manual of mental disorders, 4th edn. American Psychiatric Publishing, Washington, 2000) diagnoses of AD or PDD-NOS. Following a preliminary internal cross-validation, principal axis factor analysis was completed (N = 282). The results indicate a three-factor solution: Social Communication, Stereotyped Behaviors and Sensory Sensitivities, and Emotional Reactivity. The factors are meaningful, with the first two reflective of DSM-5 symptom domains. This study supports the continued relevance of the CARS in ASD assessment, and extends its utility in 2-year-old children. En ligne : http://dx.doi.org/10.1007/s10803-016-2936-9 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=4019

Factor analysis of the Parenting Stress Index-Short Form with parents of young children with autism spectrum disorders / Anat ZAIDMAN-ZAIT in Autism Research, 4-5 (October 2011)  

Public ISBD [article]  inAutism Research > 4-5 (October 2011) . - p.336-346 Titre : Factor analysis of the Parenting Stress Index-Short Form with parents of young children with autism spectrum disorders Type de document : Texte imprimé et/ou numérique Auteurs : Anat ZAIDMAN-ZAIT, Auteur ; Pat MIRENDA, Auteur ; Bruno D. ZUMBO, Auteur ; Stelios GEORGIADES, Auteur ; Peter SZATMARI, Auteur ; Susan E. BRYSON, Auteur ; Eric FOMBONNE, Auteur ; Wendy ROBERTS, Auteur ; Isabel M. SMITH, Auteur ; Tracy VAILLANCOURT, Auteur ; Joanne VOLDEN, Auteur ; Charlotte WADDELL, Auteur ; Lonnie ZWAIGENBAUM, Auteur ; Eric DUKU, Auteur ; Ann THOMPSON, Auteur ; THE PATHWAYS IN ASD STUDY TEAM, Auteur Année de publication : 2011 Article en page(s) : p.336-346 Langues : Anglais (eng) Mots-clés : autism spectrum disorders  parenting stress  factor analysis  Parenting Stress Index-Short Form Index. décimale : PER Périodiques Résumé : The primary purpose of this study was to examine the underlying factor structure of the Parenting Stress Index-Short Form (PSI-SF) in a large cohort of parents of young children with autism spectrum disorder (ASD). A secondary goal was to examine relationships between PSI-SF factors and autism severity, child behavior problems, and parental mental health variables that have been shown to be related to parental stress in previous research. A confirmatory factor analysis (CFA) was used to examine the three-factor structure described in the PSI-SF manual [Abidin, 1995]: parental distress, parent–child dysfunctional interaction, and difficult child. Results of the CFA indicated that the three-factor structure was unacceptable when applied to the study sample. Thus, an exploratory factor analysis was conducted and suggested a six-factor model as the best alternative for the PSI-SF index. Spearman's correlations revealed significant positive correlations with moderate to large effect sizes between the revised PSI-SF factors and autism severity, externalizing and internalizing child behaviors, and an index of parent mental health. The revised factors represent more narrowly defined aspects of the three original subscales of the PSI-SF and might prove to be advantageous in both research and clinical applications. Autism Res2011,4:336–346. © 2011 International Society for Autism Research, Wiley Periodicals, Inc. En ligne : http://dx.doi.org/10.1002/aur.213 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=1451 [article] Factor analysis of the Parenting Stress Index-Short Form with parents of young children with autism spectrum disorders [Texte imprimé et/ou numérique] / Anat ZAIDMAN-ZAIT, Auteur ; Pat MIRENDA, Auteur ; Bruno D. ZUMBO, Auteur ; Stelios GEORGIADES, Auteur ; Peter SZATMARI, Auteur ; Susan E. BRYSON, Auteur ; Eric FOMBONNE, Auteur ; Wendy ROBERTS, Auteur ; Isabel M. SMITH, Auteur ; Tracy VAILLANCOURT, Auteur ; Joanne VOLDEN, Auteur ; Charlotte WADDELL, Auteur ; Lonnie ZWAIGENBAUM, Auteur ; Eric DUKU, Auteur ; Ann THOMPSON, Auteur ; THE PATHWAYS IN ASD STUDY TEAM, Auteur . - 2011 . - p.336-346. Langues : Anglais (eng) in Autism Research > 4-5 (October 2011) . - p.336-346 Mots-clés : autism spectrum disorders  parenting stress  factor analysis  Parenting Stress Index-Short Form Index. décimale : PER Périodiques Résumé : The primary purpose of this study was to examine the underlying factor structure of the Parenting Stress Index-Short Form (PSI-SF) in a large cohort of parents of young children with autism spectrum disorder (ASD). A secondary goal was to examine relationships between PSI-SF factors and autism severity, child behavior problems, and parental mental health variables that have been shown to be related to parental stress in previous research. A confirmatory factor analysis (CFA) was used to examine the three-factor structure described in the PSI-SF manual [Abidin, 1995]: parental distress, parent–child dysfunctional interaction, and difficult child. Results of the CFA indicated that the three-factor structure was unacceptable when applied to the study sample. Thus, an exploratory factor analysis was conducted and suggested a six-factor model as the best alternative for the PSI-SF index. Spearman's correlations revealed significant positive correlations with moderate to large effect sizes between the revised PSI-SF factors and autism severity, externalizing and internalizing child behaviors, and an index of parent mental health. The revised factors represent more narrowly defined aspects of the three original subscales of the PSI-SF and might prove to be advantageous in both research and clinical applications. Autism Res2011,4:336–346. © 2011 International Society for Autism Research, Wiley Periodicals, Inc. En ligne : http://dx.doi.org/10.1002/aur.213 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=1451

Brief Report: Factor Analysis of the Brazilian Version of the Adult Autism Spectrum Quotient / J. H. T. DO EGITO in Journal of Autism and Developmental Disorders, 48-5 (May 2018)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 48-5 (May 2018) . - p.1847-1853 Titre : Brief Report: Factor Analysis of the Brazilian Version of the Adult Autism Spectrum Quotient Type de document : Texte imprimé et/ou numérique Auteurs : J. H. T. DO EGITO, Auteur ; G. M. R. FERREIRA, Auteur ; M. I. GONCALVES, Auteur ; A. A. C. OSORIO, Auteur Article en page(s) : p.1847-1853 Langues : Anglais (eng) Mots-clés : Autism  Autism Spectrum Quotient  Factor analysis  Validation Index. décimale : PER Périodiques Résumé : This study examined the factor structure of the Brazilian version of the Autism-Spectrum Quotient. This is a self-report questionnaire for continuous and quantitative assessment of autistic spectrum traits in adults. Confirmatory factor analysis was performed on the five-factor model (social skill, attention switching, attention to detail, communication and imagination) proposed by the original authors, support not being found for this model in our sample. An exploratory factor analysis was then performed that resulted in an alternative three-factor model (social skills, details/patterns and imagination). Confirmatory factor analysis of the latter model revealed adequate psychometric indexes. The Brazilian version of the AQ was shown to be an adequate instrument for the evaluation of signs compatible with the autism spectrum in adults. En ligne : http://dx.doi.org/10.1007/s10803-017-3424-6 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=3559 [article] Brief Report: Factor Analysis of the Brazilian Version of the Adult Autism Spectrum Quotient [Texte imprimé et/ou numérique] / J. H. T. DO EGITO, Auteur ; G. M. R. FERREIRA, Auteur ; M. I. GONCALVES, Auteur ; A. A. C. OSORIO, Auteur . - p.1847-1853. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 48-5 (May 2018) . - p.1847-1853 Mots-clés : Autism  Autism Spectrum Quotient  Factor analysis  Validation Index. décimale : PER Périodiques Résumé : This study examined the factor structure of the Brazilian version of the Autism-Spectrum Quotient. This is a self-report questionnaire for continuous and quantitative assessment of autistic spectrum traits in adults. Confirmatory factor analysis was performed on the five-factor model (social skill, attention switching, attention to detail, communication and imagination) proposed by the original authors, support not being found for this model in our sample. An exploratory factor analysis was then performed that resulted in an alternative three-factor model (social skills, details/patterns and imagination). Confirmatory factor analysis of the latter model revealed adequate psychometric indexes. The Brazilian version of the AQ was shown to be an adequate instrument for the evaluation of signs compatible with the autism spectrum in adults. En ligne : http://dx.doi.org/10.1007/s10803-017-3424-6 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=3559

Examining Shared and Unique Aspects of Social Anxiety Disorder and Autism Spectrum Disorder Using Factor Analysis / Susan W. WHITE in Journal of Autism and Developmental Disorders, 42-5 (May 2012)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 42-5 (May 2012) . - p.874-884 Titre : Examining Shared and Unique Aspects of Social Anxiety Disorder and Autism Spectrum Disorder Using Factor Analysis Type de document : Texte imprimé et/ou numérique Auteurs : Susan W. WHITE, Auteur ; Bethany C. BRAY, Auteur ; Thomas H. OLLENDICK, Auteur Année de publication : 2012 Article en page(s) : p.874-884 Langues : Anglais (eng) Mots-clés : Social anxiety  Autism  Adults  Assessment  Factor analysis Index. décimale : PER Périodiques Résumé : Social Anxiety Disorder (SAD) and Autism Spectrum Disorders (ASD) are fairly common psychiatric conditions that impair the functioning of otherwise healthy young adults. Given that the two conditions frequently co-occur, measurement of the characteristics unique to each condition is critical. This study evaluated the structure and construct overlap of two screening measures of SAD and ASD. Results from 623 young adults indicated that separable, though highly correlated, factors can be derived from the two measures related to social anxiety and social difficulties. The ASD screening measure also taps unique factors related to restricted interests and attention to details, theory of mind deficits, and a preference for routine. Recommendations are provided for accurate screening of symptoms of both SAD and ASD. En ligne : http://dx.doi.org/10.1007/s10803-011-1325-7 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=1546 [article] Examining Shared and Unique Aspects of Social Anxiety Disorder and Autism Spectrum Disorder Using Factor Analysis [Texte imprimé et/ou numérique] / Susan W. WHITE, Auteur ; Bethany C. BRAY, Auteur ; Thomas H. OLLENDICK, Auteur . - 2012 . - p.874-884. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 42-5 (May 2012) . - p.874-884 Mots-clés : Social anxiety  Autism  Adults  Assessment  Factor analysis Index. décimale : PER Périodiques Résumé : Social Anxiety Disorder (SAD) and Autism Spectrum Disorders (ASD) are fairly common psychiatric conditions that impair the functioning of otherwise healthy young adults. Given that the two conditions frequently co-occur, measurement of the characteristics unique to each condition is critical. This study evaluated the structure and construct overlap of two screening measures of SAD and ASD. Results from 623 young adults indicated that separable, though highly correlated, factors can be derived from the two measures related to social anxiety and social difficulties. The ASD screening measure also taps unique factors related to restricted interests and attention to details, theory of mind deficits, and a preference for routine. Recommendations are provided for accurate screening of symptoms of both SAD and ASD. En ligne : http://dx.doi.org/10.1007/s10803-011-1325-7 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=1546

Psychometric analysis of the repetitive behavior scale-revised using confirmatory factor analysis in children with autism / J. L. HOOKER in Autism Research, 12-9 (September 2019)  

Public ISBD [article]  inAutism Research > 12-9 (September 2019) . - p.1399-1410 Titre : Psychometric analysis of the repetitive behavior scale-revised using confirmatory factor analysis in children with autism Type de document : Texte imprimé et/ou numérique Auteurs : J. L. HOOKER, Auteur ; D. DOW, Auteur ; L. MORGAN, Auteur ; C. SCHATSCHNEIDER, Auteur ; Amy M. WETHERBY, Auteur Article en page(s) : p.1399-1410 Langues : Anglais (eng) Mots-clés : adaptive behavior  autism  children  factor analysis  restricted/repetitive behaviors Index. décimale : PER Périodiques Résumé : Research examining restricted and repetitive patterns of behavior or interests (RRB) in autism spectrum disorder (ASD) has increased our understanding of its contribution to diagnosis and its role in development. Advances in our knowledge of RRB are hindered by the inconsistencies in how RRB is measured. The present study examined the factor structure of the Repetitive Behavior Scale-Revised (RBS-R) in a sample of 350 children with ASD ages 2-9. Confirmatory factor analysis designed for items with categorical response types was implemented to examine six proposed structural models. The five-factor model demonstrated the most parsimonious fit based on common overall fit indices that was further supported by examination of local model fit indicators, though, the four- and six-factor models evidenced adequate-to-good fit as well. Examination of RRB factor score approaches indicated only minor differences between summed item subscale scores and extracted factor scores with regard to associations with diagnostic measures. All RRB subtypes demonstrated significant associations with cognitive functioning and adaptive behavior. Implications for future research validating the RBS-R as a more extensive clinical measure of RRB in ASD are discussed. Autism Res 2019, 12: 1399-1410. (c) 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Repetitive behaviors are one of the two main symptoms of autism spectrum disorder (ASD). To better understand the role of repetitive behaviors, we must establish effective ways of measuring them. This study assessed the measurement qualities of the Repetitive Behavior Scale-Revised (RBS-R) in a sample of 350 children with ASD ages 2-9. We found that the RBS-R measures multiple types of repetitive behaviors and that these behaviors are related to thinking ability and independence. En ligne : http://dx.doi.org/10.1002/aur.2159 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=4068 [article] Psychometric analysis of the repetitive behavior scale-revised using confirmatory factor analysis in children with autism [Texte imprimé et/ou numérique] / J. L. HOOKER, Auteur ; D. DOW, Auteur ; L. MORGAN, Auteur ; C. SCHATSCHNEIDER, Auteur ; Amy M. WETHERBY, Auteur . - p.1399-1410. Langues : Anglais (eng) in Autism Research > 12-9 (September 2019) . - p.1399-1410 Mots-clés : adaptive behavior  autism  children  factor analysis  restricted/repetitive behaviors Index. décimale : PER Périodiques Résumé : Research examining restricted and repetitive patterns of behavior or interests (RRB) in autism spectrum disorder (ASD) has increased our understanding of its contribution to diagnosis and its role in development. Advances in our knowledge of RRB are hindered by the inconsistencies in how RRB is measured. The present study examined the factor structure of the Repetitive Behavior Scale-Revised (RBS-R) in a sample of 350 children with ASD ages 2-9. Confirmatory factor analysis designed for items with categorical response types was implemented to examine six proposed structural models. The five-factor model demonstrated the most parsimonious fit based on common overall fit indices that was further supported by examination of local model fit indicators, though, the four- and six-factor models evidenced adequate-to-good fit as well. Examination of RRB factor score approaches indicated only minor differences between summed item subscale scores and extracted factor scores with regard to associations with diagnostic measures. All RRB subtypes demonstrated significant associations with cognitive functioning and adaptive behavior. Implications for future research validating the RBS-R as a more extensive clinical measure of RRB in ASD are discussed. Autism Res 2019, 12: 1399-1410. (c) 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Repetitive behaviors are one of the two main symptoms of autism spectrum disorder (ASD). To better understand the role of repetitive behaviors, we must establish effective ways of measuring them. This study assessed the measurement qualities of the Repetitive Behavior Scale-Revised (RBS-R) in a sample of 350 children with ASD ages 2-9. We found that the RBS-R measures multiple types of repetitive behaviors and that these behaviors are related to thinking ability and independence. En ligne : http://dx.doi.org/10.1002/aur.2159 Permalink : http://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=4068

Testing a theory-driven factor structure of the autism-spectrum quotient / Yiqin ZHU in Autism Research, 15-9 (September 2022)  

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Characterizing the Factor Structure of Parent Reported Executive Function in Autism Spectrum Disorders: The Impact of Cognitive Inflexibility / Yael GRANADER in Journal of Autism and Developmental Disorders, 44-12 (December 2014)  

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Exploratory and confirmatory factor analyses of the Arabic version of the Childhood Autism Rating Scale / Bander ALOTAIBI in Research in Autism Spectrum Disorders, 86 (August 2021)  

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Improving the measurement of alexithymia in autistic adults: a psychometric investigation of the 20-item Toronto Alexithymia Scale and generation of a general alexithymia factor score using item response theory / Z. J. WILLIAMS in Molecular Autism, 12 (2021)  

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Investigating the factor structure of the child behavior checklist dysregulation profile in children and adolescents with autism spectrum disorder / Amy KEEFER in Autism Research, 13-3 (March 2020)  

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