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Auteur Caitlin C. CLEMENTS |
Documents disponibles écrits par cet auteur (7)



22q11.2 duplication syndrome: elevated rate of autism spectrum disorder and need for medical screening / T. L. WENGER in Molecular Autism, 7 (2016)
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Titre : 22q11.2 duplication syndrome: elevated rate of autism spectrum disorder and need for medical screening Type de document : Texte imprimé et/ou numérique Auteurs : T. L. WENGER, Auteur ; J. S. MILLER, Auteur ; L. M. DEPOLO, Auteur ; A. B. DE MARCHENA, Auteur ; Caitlin C. CLEMENTS, Auteur ; B. S. EMANUEL, Auteur ; E. H. ZACKAI, Auteur ; D. M. MCDONALD-MCGINN, Auteur ; Robert T. SCHULTZ, Auteur Article en page(s) : 27p. Langues : Anglais (eng) Mots-clés : Abnormalities, Multiple/diagnosis Adolescent Adult Analysis of Variance Autism Spectrum Disorder/complications/diagnosis/epidemiology Child Child, Preschool Chromosome Duplication Chromosomes, Human, Pair 22 DiGeorge Syndrome/complications/diagnosis Female Genetic Testing Humans Male Middle Aged Social Behavior Surveys and Questionnaires Young Adult 22q11.2 deletion syndrome 22q11.2 duplication syndrome Autism spectrum disorder Developmental delay Medical characterization Medical screening Neuropsychiatric functioning Syndromic autism Typically developing controls Index. décimale : PER Périodiques Résumé : BACKGROUND: Widespread use of microarray technology has led to increasing identification of 22q11.2 duplication syndrome (22q11.2DupS), the reciprocal syndrome of the well-characterized 22q11.2 deletion syndrome (22q11.2DS). Individuals with 22q11.2DS have elevated rates of community diagnoses of autism spectrum disorder (ASD), schizophrenia, and a range of medical problems and birth defects that necessitate extensive medical screening. Case reports of 22q11.2DupS include patients with ASD, fewer medical problems, and no schizophrenia; however, no prospective cohort study has been reported. The goals of the study were to (1) characterize the neuropsychiatric functioning of a cohort of individuals with 22q11.2DupS in comparison to large samples of typically developing controls (TDCs), ASD and 22q11.2DS; (2) estimate the prevalence of ASD in 22q11.2DupS; (3) determine whether the indications that prompted the genetic testing in 22q11.2DupS differ from 22q11.2DS and (4) determine whether comprehensive medical screening should be recommended for those diagnosed with 22q11.2DupS. METHODS: Medical characterization was done by parental questionnaire and medical chart review of individuals with 22q11.2DupS (n = 37) and 22q11.2DS (n = 101). Neuropsychiatric characterization of children with 22.11.2DupS, 22q11.2DS, TDCs, and ASD was done by parent-report questionnaires; in addition, the ASD and 22q11.2DupS groups received the Autism Diagnostic Interview-Revised and Autism Diagnostic Observation Schedule. RESULTS: Individuals with 22q11.2DupS, 22q11.2DS, and ASD had significantly impaired social interaction and adaptive behavior skills compared to TDCs. Overall, 38% of children aged 2-18 with 22q11.2DupS had community diagnoses of ASD, but fewer (14-25%) met on the basis of best clinical judgment that included ADI-R and ADOS data. Indications for genetic testing were significantly different for 22q11.2DupS and 22q11.2DS, with the deletions more commonly tested because of birth defects or medical problems, and the duplications because of developmental delay. However, when the screening protocol for 22q11.2DS was applied to the 22q11.2DupS sample, several medical problems were identified that would pose significant risk if left undetected. CONCLUSIONS: 22q11.2DupS has a high rate of ASD at 14-25%, among the highest of any genetic disorder. Prospective medical screening should be done for all patients with 22q11.2DupS, including those diagnosed due to developmental delays and ASD alone. En ligne : http://dx.doi.org/10.1186/s13229-016-0090-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=329
in Molecular Autism > 7 (2016) . - 27p.[article] 22q11.2 duplication syndrome: elevated rate of autism spectrum disorder and need for medical screening [Texte imprimé et/ou numérique] / T. L. WENGER, Auteur ; J. S. MILLER, Auteur ; L. M. DEPOLO, Auteur ; A. B. DE MARCHENA, Auteur ; Caitlin C. CLEMENTS, Auteur ; B. S. EMANUEL, Auteur ; E. H. ZACKAI, Auteur ; D. M. MCDONALD-MCGINN, Auteur ; Robert T. SCHULTZ, Auteur . - 27p.
Langues : Anglais (eng)
in Molecular Autism > 7 (2016) . - 27p.
Mots-clés : Abnormalities, Multiple/diagnosis Adolescent Adult Analysis of Variance Autism Spectrum Disorder/complications/diagnosis/epidemiology Child Child, Preschool Chromosome Duplication Chromosomes, Human, Pair 22 DiGeorge Syndrome/complications/diagnosis Female Genetic Testing Humans Male Middle Aged Social Behavior Surveys and Questionnaires Young Adult 22q11.2 deletion syndrome 22q11.2 duplication syndrome Autism spectrum disorder Developmental delay Medical characterization Medical screening Neuropsychiatric functioning Syndromic autism Typically developing controls Index. décimale : PER Périodiques Résumé : BACKGROUND: Widespread use of microarray technology has led to increasing identification of 22q11.2 duplication syndrome (22q11.2DupS), the reciprocal syndrome of the well-characterized 22q11.2 deletion syndrome (22q11.2DS). Individuals with 22q11.2DS have elevated rates of community diagnoses of autism spectrum disorder (ASD), schizophrenia, and a range of medical problems and birth defects that necessitate extensive medical screening. Case reports of 22q11.2DupS include patients with ASD, fewer medical problems, and no schizophrenia; however, no prospective cohort study has been reported. The goals of the study were to (1) characterize the neuropsychiatric functioning of a cohort of individuals with 22q11.2DupS in comparison to large samples of typically developing controls (TDCs), ASD and 22q11.2DS; (2) estimate the prevalence of ASD in 22q11.2DupS; (3) determine whether the indications that prompted the genetic testing in 22q11.2DupS differ from 22q11.2DS and (4) determine whether comprehensive medical screening should be recommended for those diagnosed with 22q11.2DupS. METHODS: Medical characterization was done by parental questionnaire and medical chart review of individuals with 22q11.2DupS (n = 37) and 22q11.2DS (n = 101). Neuropsychiatric characterization of children with 22.11.2DupS, 22q11.2DS, TDCs, and ASD was done by parent-report questionnaires; in addition, the ASD and 22q11.2DupS groups received the Autism Diagnostic Interview-Revised and Autism Diagnostic Observation Schedule. RESULTS: Individuals with 22q11.2DupS, 22q11.2DS, and ASD had significantly impaired social interaction and adaptive behavior skills compared to TDCs. Overall, 38% of children aged 2-18 with 22q11.2DupS had community diagnoses of ASD, but fewer (14-25%) met on the basis of best clinical judgment that included ADI-R and ADOS data. Indications for genetic testing were significantly different for 22q11.2DupS and 22q11.2DS, with the deletions more commonly tested because of birth defects or medical problems, and the duplications because of developmental delay. However, when the screening protocol for 22q11.2DS was applied to the 22q11.2DupS sample, several medical problems were identified that would pose significant risk if left undetected. CONCLUSIONS: 22q11.2DupS has a high rate of ASD at 14-25%, among the highest of any genetic disorder. Prospective medical screening should be done for all patients with 22q11.2DupS, including those diagnosed due to developmental delays and ASD alone. En ligne : http://dx.doi.org/10.1186/s13229-016-0090-z Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=329 Attention Bias to Emotional Faces Varies by IQ and Anxiety in Williams Syndrome / Lauren M. MCGRATH in Journal of Autism and Developmental Disorders, 46-6 (June 2016)
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Titre : Attention Bias to Emotional Faces Varies by IQ and Anxiety in Williams Syndrome Type de document : Texte imprimé et/ou numérique Auteurs : Lauren M. MCGRATH, Auteur ; Joyce M. OATES, Auteur ; Yael G. DAI, Auteur ; Helen F. DODD, Auteur ; Jessica L. WAXLER, Auteur ; Caitlin C. CLEMENTS, Auteur ; Sydney WEILL, Auteur ; Alison HOFFNAGLE, Auteur ; Erin ANDERSON, Auteur ; Rebecca MACRAE, Auteur ; Jennifer MULLETT, Auteur ; Christopher J. MCDOUGLE, Auteur ; Barbara R. POBER, Auteur ; Jordan W. SMOLLER, Auteur Article en page(s) : p.2174-2185 Langues : Anglais (eng) Mots-clés : Williams syndrome Anxiety Attention bias Social dot-probe Emotional faces Index. décimale : PER Périodiques Résumé : Individuals with Williams syndrome (WS) often experience significant anxiety. A promising approach to anxiety intervention has emerged from cognitive studies of attention bias to threat. To investigate the utility of this intervention in WS, this study examined attention bias to happy and angry faces in individuals with WS (N = 46). Results showed a significant difference in attention bias patterns as a function of IQ and anxiety. Individuals with higher IQ or higher anxiety showed a significant bias toward angry, but not happy faces, whereas individuals with lower IQ or lower anxiety showed the opposite pattern. These results suggest that attention bias interventions to modify a threat bias may be most effectively targeted to anxious individuals with WS with relatively high IQ. En ligne : http://dx.doi.org/10.1007/s10803-016-2748-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=289
in Journal of Autism and Developmental Disorders > 46-6 (June 2016) . - p.2174-2185[article] Attention Bias to Emotional Faces Varies by IQ and Anxiety in Williams Syndrome [Texte imprimé et/ou numérique] / Lauren M. MCGRATH, Auteur ; Joyce M. OATES, Auteur ; Yael G. DAI, Auteur ; Helen F. DODD, Auteur ; Jessica L. WAXLER, Auteur ; Caitlin C. CLEMENTS, Auteur ; Sydney WEILL, Auteur ; Alison HOFFNAGLE, Auteur ; Erin ANDERSON, Auteur ; Rebecca MACRAE, Auteur ; Jennifer MULLETT, Auteur ; Christopher J. MCDOUGLE, Auteur ; Barbara R. POBER, Auteur ; Jordan W. SMOLLER, Auteur . - p.2174-2185.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 46-6 (June 2016) . - p.2174-2185
Mots-clés : Williams syndrome Anxiety Attention bias Social dot-probe Emotional faces Index. décimale : PER Périodiques Résumé : Individuals with Williams syndrome (WS) often experience significant anxiety. A promising approach to anxiety intervention has emerged from cognitive studies of attention bias to threat. To investigate the utility of this intervention in WS, this study examined attention bias to happy and angry faces in individuals with WS (N = 46). Results showed a significant difference in attention bias patterns as a function of IQ and anxiety. Individuals with higher IQ or higher anxiety showed a significant bias toward angry, but not happy faces, whereas individuals with lower IQ or lower anxiety showed the opposite pattern. These results suggest that attention bias interventions to modify a threat bias may be most effectively targeted to anxious individuals with WS with relatively high IQ. En ligne : http://dx.doi.org/10.1007/s10803-016-2748-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=289 Critical region within 22q11.2 linked to higher rate of autism spectrum disorder / Caitlin C. CLEMENTS in Molecular Autism, 8 (2017)
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Titre : Critical region within 22q11.2 linked to higher rate of autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Caitlin C. CLEMENTS, Auteur ; T. L. WENGER, Auteur ; A. R. ZOLTOWSKI, Auteur ; Jennifer R. BERTOLLO, Auteur ; J. S. MILLER, Auteur ; A. B. DE MARCHENA, Auteur ; L. M. MITTEER, Auteur ; J. C. CAREY, Auteur ; B. E. YERYS, Auteur ; E. H. ZACKAI, Auteur ; B. S. EMANUEL, Auteur ; D. M. MCDONALD-MCGINN, Auteur ; Robert T. SCHULTZ, Auteur Article en page(s) : 58p. Langues : Anglais (eng) Mots-clés : 22q11.2 deletion syndrome 22q11.2 duplication syndrome Atypical Autism spectrum disorder Face processing Nested Prosopagnosia Ranbp1 Screening Syndromic autism Index. décimale : PER Périodiques Résumé : BACKGROUND: Previous studies have reported no clear critical region for medical comorbidities in children with deletions or duplications of 22q11.2. The purpose of this study was to evaluate whether individuals with small nested deletions or duplications of the LCR-A to B region of 22q11.2 show an elevated rate of autism spectrum disorder (ASD) compared to individuals with deletions or duplications that do not include this region. METHODS: We recruited 46 patients with nested deletions (n = 33) or duplications (n = 13) of 22q11.2, including LCR-A to B (ndel = 11), LCR-A to C (ndel = 4), LCR-B to D (ndel = 14; ndup = 8), LCR-C to D (ndel = 4; ndup = 2), and smaller nested regions (n = 3). Parent questionnaire, record review, and, for a subset, in-person evaluation were used for ASD diagnostic classification. Rates of ASD in individuals with involvement of LCR-B to LCR-D were compared with Fisher's exact test to LCR-A to LCR-B for deletions, and to a previously published sample of LCR-A to LCR-D for duplications. The rates of medical comorbidities and psychiatric diagnoses were determined from questionnaires and chart review. We also report group mean differences on psychiatric questionnaires. RESULTS: Individuals with deletions involving LCR-A to B showed a 39-44% rate of ASD compared to 0% in individuals whose deletions did not involve LCR-A to B. We observed similar rates of medical comorbidities in individuals with involvement of LCR-A to B and LCR-B to D for both duplications and deletions, consistent with prior studies. CONCLUSIONS: Children with nested deletions of 22q11.2 may be at greater risk for autism spectrum disorder if the region includes LCR-A to LCR-B. Replication is needed. En ligne : http://dx.doi.org/10.1186/s13229-017-0171-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=329
in Molecular Autism > 8 (2017) . - 58p.[article] Critical region within 22q11.2 linked to higher rate of autism spectrum disorder [Texte imprimé et/ou numérique] / Caitlin C. CLEMENTS, Auteur ; T. L. WENGER, Auteur ; A. R. ZOLTOWSKI, Auteur ; Jennifer R. BERTOLLO, Auteur ; J. S. MILLER, Auteur ; A. B. DE MARCHENA, Auteur ; L. M. MITTEER, Auteur ; J. C. CAREY, Auteur ; B. E. YERYS, Auteur ; E. H. ZACKAI, Auteur ; B. S. EMANUEL, Auteur ; D. M. MCDONALD-MCGINN, Auteur ; Robert T. SCHULTZ, Auteur . - 58p.
Langues : Anglais (eng)
in Molecular Autism > 8 (2017) . - 58p.
Mots-clés : 22q11.2 deletion syndrome 22q11.2 duplication syndrome Atypical Autism spectrum disorder Face processing Nested Prosopagnosia Ranbp1 Screening Syndromic autism Index. décimale : PER Périodiques Résumé : BACKGROUND: Previous studies have reported no clear critical region for medical comorbidities in children with deletions or duplications of 22q11.2. The purpose of this study was to evaluate whether individuals with small nested deletions or duplications of the LCR-A to B region of 22q11.2 show an elevated rate of autism spectrum disorder (ASD) compared to individuals with deletions or duplications that do not include this region. METHODS: We recruited 46 patients with nested deletions (n = 33) or duplications (n = 13) of 22q11.2, including LCR-A to B (ndel = 11), LCR-A to C (ndel = 4), LCR-B to D (ndel = 14; ndup = 8), LCR-C to D (ndel = 4; ndup = 2), and smaller nested regions (n = 3). Parent questionnaire, record review, and, for a subset, in-person evaluation were used for ASD diagnostic classification. Rates of ASD in individuals with involvement of LCR-B to LCR-D were compared with Fisher's exact test to LCR-A to LCR-B for deletions, and to a previously published sample of LCR-A to LCR-D for duplications. The rates of medical comorbidities and psychiatric diagnoses were determined from questionnaires and chart review. We also report group mean differences on psychiatric questionnaires. RESULTS: Individuals with deletions involving LCR-A to B showed a 39-44% rate of ASD compared to 0% in individuals whose deletions did not involve LCR-A to B. We observed similar rates of medical comorbidities in individuals with involvement of LCR-A to B and LCR-B to D for both duplications and deletions, consistent with prior studies. CONCLUSIONS: Children with nested deletions of 22q11.2 may be at greater risk for autism spectrum disorder if the region includes LCR-A to LCR-B. Replication is needed. En ligne : http://dx.doi.org/10.1186/s13229-017-0171-7 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=329 DAS-II Cognitive Profiles Are Not Diagnostically Meaningful For Autism: A ROC Analysis / Caitlin C. CLEMENTS in Autism Research, 13-12 (December 2020)
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Titre : DAS-II Cognitive Profiles Are Not Diagnostically Meaningful For Autism: A ROC Analysis Type de document : Texte imprimé et/ou numérique Auteurs : Caitlin C. CLEMENTS, Auteur ; Timea SPARDING, Auteur ; Robert T. SCHULTZ, Auteur ; Benjamin E YERYS, Auteur Article en page(s) : p.2143-2154 Langues : Anglais (eng) Mots-clés : Das-ii Roc autism cognitive profiles intelligence Index. décimale : PER Périodiques Résumé : Intelligence assessment is an integral part of a comprehensive autism evaluation. Many past studies have described a cognitive profile of autistic individuals characterized by higher nonverbal than verbal IQ scores. The diagnostic utility of this profile, however, remains unknown. We leveraged receiver operating characteristic methods to determine the sensitivity, specificity, and area under the curve (AUC) of three different IQ profiles in a large sample of children who have an autism spectrum disorder diagnosis (N = 1,228, Simons Simplex Collection) who completed the Differential Ability Scales-Second Edition (DAS-II), School Age compared to the normative sample provided by the DAS-II publisher (N = 2,200). The frequently discussed nonverbal > verbal IQ profile performed near chance at distinguishing ASD from normative individuals (AUC: 0.54, 95% CI [0.52-0.56]), and performed significantly worse for females than males (AUC: females: 0.46 [0.41-0.52]; males: 0.55 [0.53-0.58]). All cognitive profiles showed AUC?0.56. We conclude that while significant differences between verbal and nonverbal IQ scores exist at the group level, these differences are small in an absolute sense and not meaningful at an individual level. We do not recommend using cognitive profiles to aid in autism diagnostic decision-making. LAY SUMMARY: Some researchers and clinicians have reported an "autistic cognitive profile" of higher nonverbal intelligence than verbal intelligence. In an analysis of over 1,000 autistic children, we found that the group's average nonverbal intelligence is usually higher than their verbal intelligence. However, this pattern should not be used by clinicians to make an individual diagnosis of autism because our results show it is not helpful nor accurate. En ligne : http://dx.doi.org/10.1002/aur.2336 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=434
in Autism Research > 13-12 (December 2020) . - p.2143-2154[article] DAS-II Cognitive Profiles Are Not Diagnostically Meaningful For Autism: A ROC Analysis [Texte imprimé et/ou numérique] / Caitlin C. CLEMENTS, Auteur ; Timea SPARDING, Auteur ; Robert T. SCHULTZ, Auteur ; Benjamin E YERYS, Auteur . - p.2143-2154.
Langues : Anglais (eng)
in Autism Research > 13-12 (December 2020) . - p.2143-2154
Mots-clés : Das-ii Roc autism cognitive profiles intelligence Index. décimale : PER Périodiques Résumé : Intelligence assessment is an integral part of a comprehensive autism evaluation. Many past studies have described a cognitive profile of autistic individuals characterized by higher nonverbal than verbal IQ scores. The diagnostic utility of this profile, however, remains unknown. We leveraged receiver operating characteristic methods to determine the sensitivity, specificity, and area under the curve (AUC) of three different IQ profiles in a large sample of children who have an autism spectrum disorder diagnosis (N = 1,228, Simons Simplex Collection) who completed the Differential Ability Scales-Second Edition (DAS-II), School Age compared to the normative sample provided by the DAS-II publisher (N = 2,200). The frequently discussed nonverbal > verbal IQ profile performed near chance at distinguishing ASD from normative individuals (AUC: 0.54, 95% CI [0.52-0.56]), and performed significantly worse for females than males (AUC: females: 0.46 [0.41-0.52]; males: 0.55 [0.53-0.58]). All cognitive profiles showed AUC?0.56. We conclude that while significant differences between verbal and nonverbal IQ scores exist at the group level, these differences are small in an absolute sense and not meaningful at an individual level. We do not recommend using cognitive profiles to aid in autism diagnostic decision-making. LAY SUMMARY: Some researchers and clinicians have reported an "autistic cognitive profile" of higher nonverbal intelligence than verbal intelligence. In an analysis of over 1,000 autistic children, we found that the group's average nonverbal intelligence is usually higher than their verbal intelligence. However, this pattern should not be used by clinicians to make an individual diagnosis of autism because our results show it is not helpful nor accurate. En ligne : http://dx.doi.org/10.1002/aur.2336 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=434 Does the Factor Structure of IQ Differ Between the Differential Ability Scales (DAS-II) Normative Sample and Autistic Children? / Caitlin C. CLEMENTS in Autism Research, 13-7 (July 2020)
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Titre : Does the Factor Structure of IQ Differ Between the Differential Ability Scales (DAS-II) Normative Sample and Autistic Children? Type de document : Texte imprimé et/ou numérique Auteurs : Caitlin C. CLEMENTS, Auteur ; Marley W. WATKINS, Auteur ; Robert T. SCHULTZ, Auteur ; Benjamin E YERYS, Auteur Article en page(s) : p.1184-1194 Langues : Anglais (eng) Mots-clés : autism spectrum disorders autistic disorder educational psychology factor analysis intelligence psychometrics Index. décimale : PER Périodiques Résumé : The Differential Abilities Scales, 2nd edition (DAS-II) is frequently used to assess intelligence in autism spectrum disorder (ASD). However, it remains unknown whether the DAS-II measurement model (e.g., factor structure, loadings), which was developed on a normative sample, holds for the autistic population or requires alternative score interpretations. We obtained DAS-II data from 1,316 autistic individuals in the Simons Simplex Consortium and 2,400 individuals in the normative data set. We combined ASD and normative data sets for multigroup confirmatory factor analyses to assess different levels of measurement invariance, or how well the same measurement model fit both data sets: "weak" or metric, "strong" or scalar, and partial scalar if full scalar was not achieved. A weak invariance model showed excellent fit (Confirmatory Fit Index [CFI]?>?0.995, Tucker Lewis Index [TLI]?>?0.995, root mean square error of approximation [RMSEA]?0.025), but a strong invariance model demonstrated a significant deterioration in fit during permutation testing (all p's<0.001), suggesting measurement bias, meaning systematic error when assessing autistic children. Fit improved significantly, and partial scalar invariance was achieved when either of the two spatial subtest (Recall of Designs or Pattern Construction) intercepts was permitted to vary between the ASD and normative groups, pinpointing these subtests as the source of bias. The DAS-II appears to measure verbal and nonverbal-but not spatial-intelligence in autistic children similarly as in normative sample children. These results may be driven by Pattern Construction, which shows higher scores than other subtests in the ASD sample. Clinicians assessing autistic children with the DAS-II should interpret verbal and nonverbal reasoning composite scores over the spatial score or General Composite Ability. Autism Res 2020, 13: 1184-1194. © 2020 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: The Differential Abilities Scales, 2nd edition (DAS-II) is a popular intelligence quotient (IQ) test for assessing children with autism. This article shows that the DAS-II spatial standardized scores should be interpreted with caution because they hold a different meaning for autistic children. Verbal and nonverbal reasoning scores appear valid and to hold the same meaning for those with and without autism spectrum disorder. En ligne : http://dx.doi.org/10.1002/aur.2285 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=429
in Autism Research > 13-7 (July 2020) . - p.1184-1194[article] Does the Factor Structure of IQ Differ Between the Differential Ability Scales (DAS-II) Normative Sample and Autistic Children? [Texte imprimé et/ou numérique] / Caitlin C. CLEMENTS, Auteur ; Marley W. WATKINS, Auteur ; Robert T. SCHULTZ, Auteur ; Benjamin E YERYS, Auteur . - p.1184-1194.
Langues : Anglais (eng)
in Autism Research > 13-7 (July 2020) . - p.1184-1194
Mots-clés : autism spectrum disorders autistic disorder educational psychology factor analysis intelligence psychometrics Index. décimale : PER Périodiques Résumé : The Differential Abilities Scales, 2nd edition (DAS-II) is frequently used to assess intelligence in autism spectrum disorder (ASD). However, it remains unknown whether the DAS-II measurement model (e.g., factor structure, loadings), which was developed on a normative sample, holds for the autistic population or requires alternative score interpretations. We obtained DAS-II data from 1,316 autistic individuals in the Simons Simplex Consortium and 2,400 individuals in the normative data set. We combined ASD and normative data sets for multigroup confirmatory factor analyses to assess different levels of measurement invariance, or how well the same measurement model fit both data sets: "weak" or metric, "strong" or scalar, and partial scalar if full scalar was not achieved. A weak invariance model showed excellent fit (Confirmatory Fit Index [CFI]?>?0.995, Tucker Lewis Index [TLI]?>?0.995, root mean square error of approximation [RMSEA]?0.025), but a strong invariance model demonstrated a significant deterioration in fit during permutation testing (all p's<0.001), suggesting measurement bias, meaning systematic error when assessing autistic children. Fit improved significantly, and partial scalar invariance was achieved when either of the two spatial subtest (Recall of Designs or Pattern Construction) intercepts was permitted to vary between the ASD and normative groups, pinpointing these subtests as the source of bias. The DAS-II appears to measure verbal and nonverbal-but not spatial-intelligence in autistic children similarly as in normative sample children. These results may be driven by Pattern Construction, which shows higher scores than other subtests in the ASD sample. Clinicians assessing autistic children with the DAS-II should interpret verbal and nonverbal reasoning composite scores over the spatial score or General Composite Ability. Autism Res 2020, 13: 1184-1194. © 2020 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: The Differential Abilities Scales, 2nd edition (DAS-II) is a popular intelligence quotient (IQ) test for assessing children with autism. This article shows that the DAS-II spatial standardized scores should be interpreted with caution because they hold a different meaning for autistic children. Verbal and nonverbal reasoning scores appear valid and to hold the same meaning for those with and without autism spectrum disorder. En ligne : http://dx.doi.org/10.1002/aur.2285 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=429 Erratum to: 22q11.2 duplication syndrome: elevated rate of autism spectrum disorder and need for medical screening / T. L. WENGER in Molecular Autism, 7 (2016)
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PermalinkA Lifespan Approach to Patient-Reported Outcomes and Quality of Life for People on the Autism Spectrum / Laura GRAHAM HOLMES in Autism Research, 13-6 (June 2020)
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