Exploratory Factor Analysis of SRS-2 Teacher Ratings for Youth with ASD / Andrew T. NELSON in Journal of Autism and Developmental Disorders, 46-9 (September 2016)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 46-9 (September 2016) . - p.2905-2915 Titre : Exploratory Factor Analysis of SRS-2 Teacher Ratings for Youth with ASD Type de document : texte imprimé Auteurs : Andrew T. NELSON, Auteur ; Christopher LOPATA, Auteur ; Martin A. VOLKER, Auteur ; Marcus L. THOMEER, Auteur ; Jennifer A. TOOMEY, Auteur ; Elissa DUA, Auteur Article en page(s) : p.2905-2915 Langues : Anglais (eng) Mots-clés : SRS-2  Teacher ratings  Exploratory factor analysis  ASD Index. décimale : PER Périodiques Résumé : This study examined the factor structure and internal consistency of special education teaching staff ratings on the Social Responsiveness Scale-2 (SRS-2; Constantino and Gruber 2012), as well as the percentage of ratings falling above pre-established cut scores, for a sample of lower-functioning youth with autism spectrum disorder (ASD; n = 264). Results of the exploratory factor analysis yielded a four-factor correlated solution. The individual factors and total score demonstrated satisfactory internal consistency reliability for screening purposes. When applying the lowest pre-established cut score (T ≥ 60; minimum indication of clinically significant symptoms/impairments), 85 % of the sample had ratings in that range or higher (more severe). Implications for assessment and future research are provided. En ligne : http://dx.doi.org/10.1007/s10803-016-2822-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=292 [article] Exploratory Factor Analysis of SRS-2 Teacher Ratings for Youth with ASD [texte imprimé] / Andrew T. NELSON, Auteur ; Christopher LOPATA, Auteur ; Martin A. VOLKER, Auteur ; Marcus L. THOMEER, Auteur ; Jennifer A. TOOMEY, Auteur ; Elissa DUA, Auteur . - p.2905-2915. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 46-9 (September 2016) . - p.2905-2915 Mots-clés : SRS-2  Teacher ratings  Exploratory factor analysis  ASD Index. décimale : PER Périodiques Résumé : This study examined the factor structure and internal consistency of special education teaching staff ratings on the Social Responsiveness Scale-2 (SRS-2; Constantino and Gruber 2012), as well as the percentage of ratings falling above pre-established cut scores, for a sample of lower-functioning youth with autism spectrum disorder (ASD; n = 264). Results of the exploratory factor analysis yielded a four-factor correlated solution. The individual factors and total score demonstrated satisfactory internal consistency reliability for screening purposes. When applying the lowest pre-established cut score (T ≥ 60; minimum indication of clinically significant symptoms/impairments), 85 % of the sample had ratings in that range or higher (more severe). Implications for assessment and future research are provided. En ligne : http://dx.doi.org/10.1007/s10803-016-2822-5 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=292

Factor Structure, Internal Consistency, and Screening Sensitivity of the GARS-2 in a Developmental Disabilities Sample / Martin A. VOLKER in Autism Research and Treatment, 2016 (2016)  

Public ISBD [article]  inAutism Research and Treatment > 2016 (2016) Titre : Factor Structure, Internal Consistency, and Screening Sensitivity of the GARS-2 in a Developmental Disabilities Sample Type de document : texte imprimé Auteurs : Martin A. VOLKER, Auteur ; E.H. DUA, Auteur ; C. LOPATA, Auteur ; Marcus L. THOMEER, Auteur ; Jennifer A. TOOMEY, Auteur ; Audrey M. SMERBECK, Auteur ; Jonathan D. RODGERS, Auteur ; J.R. POPKIN, Auteur ; Andrew T. NELSON, Auteur ; Gloria K. LEE, Auteur Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : The Gilliam Autism Rating Scale-Second Edition (GARS-2) is a widely used screening instrument that assists in the identification and diagnosis of autism. The purpose of this study was to examine the factor structure, internal consistency, and screening sensitivity of the GARS-2 using ratings from special education teaching staff for a sample of 240 individuals with autism or other significant developmental disabilities. Exploratory factor analysis yielded a correlated three-factor solution similar to that found in 2005 by Lecavalier for the original GARS. Though the three factors appeared to be reasonably consistent with the intended constructs of the three GARS-2 subscales, the analysis indicated that more than a third of the GARS-2 items were assigned to the wrong subscale. Internal consistency estimates met or exceeded standards for screening and were generally higher than those in previous studies. Screening sensitivity was .65 and specificity was .81 for the Autism Index using a cut score of 85. Based on these findings, recommendations are made for instrument revision. En ligne : http://dx.doi.org/10.1155/2016/8243079 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=332 [article] Factor Structure, Internal Consistency, and Screening Sensitivity of the GARS-2 in a Developmental Disabilities Sample [texte imprimé] / Martin A. VOLKER, Auteur ; E.H. DUA, Auteur ; C. LOPATA, Auteur ; Marcus L. THOMEER, Auteur ; Jennifer A. TOOMEY, Auteur ; Audrey M. SMERBECK, Auteur ; Jonathan D. RODGERS, Auteur ; J.R. POPKIN, Auteur ; Andrew T. NELSON, Auteur ; Gloria K. LEE, Auteur. Langues : Anglais (eng) in Autism Research and Treatment > 2016 (2016) Index. décimale : PER Périodiques Résumé : The Gilliam Autism Rating Scale-Second Edition (GARS-2) is a widely used screening instrument that assists in the identification and diagnosis of autism. The purpose of this study was to examine the factor structure, internal consistency, and screening sensitivity of the GARS-2 using ratings from special education teaching staff for a sample of 240 individuals with autism or other significant developmental disabilities. Exploratory factor analysis yielded a correlated three-factor solution similar to that found in 2005 by Lecavalier for the original GARS. Though the three factors appeared to be reasonably consistent with the intended constructs of the three GARS-2 subscales, the analysis indicated that more than a third of the GARS-2 items were assigned to the wrong subscale. Internal consistency estimates met or exceeded standards for screening and were generally higher than those in previous studies. Screening sensitivity was .65 and specificity was .81 for the Autism Index using a cut score of 85. Based on these findings, recommendations are made for instrument revision. En ligne : http://dx.doi.org/10.1155/2016/8243079 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=332

RCT examining the effect of treatment intensity for a psychosocial treatment for high-functioning children with ASD / Christopher LOPATA in Research in Autism Spectrum Disorders, 17 (September 2015)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 17 (September 2015) . - p.52-63 Titre : RCT examining the effect of treatment intensity for a psychosocial treatment for high-functioning children with ASD Type de document : texte imprimé Auteurs : Christopher LOPATA, Auteur ; Marcus L. THOMEER, Auteur ; Alanna M. LIPINSKI, Auteur ; James P. DONNELLY, Auteur ; Andrew T. NELSON, Auteur ; Rachael A. SMITH, Auteur ; Adam J. BOOTH, Auteur ; Jonathan D. RODGERS, Auteur ; Martin A. VOLKER, Auteur Année de publication : 2015 Article en page(s) : p.52-63 Langues : Anglais (eng) Mots-clés : High-functioning ASD  Treatment intensity  Dosage Index. décimale : PER Périodiques Résumé : Abstract This randomized controlled trial evaluated the effect of treatment intensity (high intensity vs. lower intensity) on the feasibility and efficacy of a comprehensive psychosocial treatment for 47 high-functioning children, ages 7–12 years with ASD (HFASD). All participants received the comprehensive 5-week summer treatment (summerMAX), with half receiving the previously validated high-intensity (HI) program (2:1 child-to-staff ratio) and half receiving a lower intensity (LI) version of the same program (4:1 child-to-staff ratio). Results of the primary analyses indicated significant improvements on non-literal language and emotion recognition (decoding) child testing and parent ratings of targeted and broad social skills, ASD-related symptoms, withdrawal, and behavioral symptoms for the overall group (HI and LI combined) and no significant difference between the conditions (HI vs. LI). Secondary staff clinician ratings corroborated parent ratings. No significant cross-condition differences were observed in fidelity of implementation or in parent, child, or staff clinician satisfaction ratings indicating no reduction in feasibility for the LI group. Overall, results suggested that similar positive outcomes can be achieved when the summerMAX program is administered at a lower intensity level. En ligne : http://dx.doi.org/10.1016/j.rasd.2015.06.002 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=263 [article] RCT examining the effect of treatment intensity for a psychosocial treatment for high-functioning children with ASD [texte imprimé] / Christopher LOPATA, Auteur ; Marcus L. THOMEER, Auteur ; Alanna M. LIPINSKI, Auteur ; James P. DONNELLY, Auteur ; Andrew T. NELSON, Auteur ; Rachael A. SMITH, Auteur ; Adam J. BOOTH, Auteur ; Jonathan D. RODGERS, Auteur ; Martin A. VOLKER, Auteur . - 2015 . - p.52-63. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 17 (September 2015) . - p.52-63 Mots-clés : High-functioning ASD  Treatment intensity  Dosage Index. décimale : PER Périodiques Résumé : Abstract This randomized controlled trial evaluated the effect of treatment intensity (high intensity vs. lower intensity) on the feasibility and efficacy of a comprehensive psychosocial treatment for 47 high-functioning children, ages 7–12 years with ASD (HFASD). All participants received the comprehensive 5-week summer treatment (summerMAX), with half receiving the previously validated high-intensity (HI) program (2:1 child-to-staff ratio) and half receiving a lower intensity (LI) version of the same program (4:1 child-to-staff ratio). Results of the primary analyses indicated significant improvements on non-literal language and emotion recognition (decoding) child testing and parent ratings of targeted and broad social skills, ASD-related symptoms, withdrawal, and behavioral symptoms for the overall group (HI and LI combined) and no significant difference between the conditions (HI vs. LI). Secondary staff clinician ratings corroborated parent ratings. No significant cross-condition differences were observed in fidelity of implementation or in parent, child, or staff clinician satisfaction ratings indicating no reduction in feasibility for the LI group. Overall, results suggested that similar positive outcomes can be achieved when the summerMAX program is administered at a lower intensity level. En ligne : http://dx.doi.org/10.1016/j.rasd.2015.06.002 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=263

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