Influence of Autism Traits and Executive Functioning on Quality of Life in Children with an Autism Spectrum Disorder / Marieke DE VRIES in Journal of Autism and Developmental Disorders, 45-9 (September 2015)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 45-9 (September 2015) . - p.2734-2743 Titre : Influence of Autism Traits and Executive Functioning on Quality of Life in Children with an Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : Marieke DE VRIES, Auteur ; Hilde GEURTS, Auteur Article en page(s) : p.2734-2743 Langues : Anglais (eng) Mots-clés : Autism  Executive functioning  Quality of life Index. décimale : PER Périodiques Résumé : Children with Autism Spectrum Disorders (ASDs) often experience a low Quality of Life (QoL). We studied if IQ, early language development, current autism traits, and daily Executive Functions (EFs) are related to QoL in children (aged 8–12 years) with ASD (N = 120) and typically developing (TD) children (N = 76). Children with ASD showed a lower QoL than TD children. This lower QoL was related to higher levels of autism traits and EF deficits. Moreover, specific autism traits and EFs were related to specific QoL subdomains. The low QoL and the aggravating effects of autism traits and EF deficits indicate a potential to identify and target such factors in treatment to improve QoL. En ligne : http://dx.doi.org/10.1007/s10803-015-2438-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=267 [article] Influence of Autism Traits and Executive Functioning on Quality of Life in Children with an Autism Spectrum Disorder [Texte imprimé et/ou numérique] / Marieke DE VRIES, Auteur ; Hilde GEURTS, Auteur . - p.2734-2743. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 45-9 (September 2015) . - p.2734-2743 Mots-clés : Autism  Executive functioning  Quality of life Index. décimale : PER Périodiques Résumé : Children with Autism Spectrum Disorders (ASDs) often experience a low Quality of Life (QoL). We studied if IQ, early language development, current autism traits, and daily Executive Functions (EFs) are related to QoL in children (aged 8–12 years) with ASD (N = 120) and typically developing (TD) children (N = 76). Children with ASD showed a lower QoL than TD children. This lower QoL was related to higher levels of autism traits and EF deficits. Moreover, specific autism traits and EFs were related to specific QoL subdomains. The low QoL and the aggravating effects of autism traits and EF deficits indicate a potential to identify and target such factors in treatment to improve QoL. En ligne : http://dx.doi.org/10.1007/s10803-015-2438-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=267

Language Matters: The Autism-Spectrum Quotient in English, Mandarin and Bahasa Malaysia / Zhong Jian CHEE in Journal of Autism and Developmental Disorders, 52-9 (September 2022)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 52-9 (September 2022) . - p.3814-3824 Titre : Language Matters: The Autism-Spectrum Quotient in English, Mandarin and Bahasa Malaysia Type de document : Texte imprimé et/ou numérique Auteurs : Zhong Jian CHEE, Auteur ; Marieke DE VRIES, Auteur Article en page(s) : p.3814-3824 Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder  Autistic Disorder  Humans  Language  Malaysia  Multilingualism  Autism-spectrum quotient  Bahasa Malaysia  Culture  Mandarin  Response style Index. décimale : PER Périodiques Résumé : The autism-spectrum quotient (AQ) measures autistic traits and has been studied in different countries, sometimes with the English version, and sometimes with translated versions. However, the language of the questionnaire might influence non-native English speakers' answering tendency. In the current study we compared the responses on the AQ of multilingual Malaysians (96 participants filled out the AQ in English and Mandarin, and 79 participants filled out English and Bahasa Malaysia). Participants scored higher on the English AQ compared to the Mandarin AQ, whereas there was no difference between the English and Bahasa Malaysia AQ score. Analysis of the response style suggests the same person might display discrepant response styles in different languages, which seems to be related to language proficiency. En ligne : http://dx.doi.org/10.1007/s10803-021-05253-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=485 [article] Language Matters: The Autism-Spectrum Quotient in English, Mandarin and Bahasa Malaysia [Texte imprimé et/ou numérique] / Zhong Jian CHEE, Auteur ; Marieke DE VRIES, Auteur . - p.3814-3824. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 52-9 (September 2022) . - p.3814-3824 Mots-clés : Autism Spectrum Disorder  Autistic Disorder  Humans  Language  Malaysia  Multilingualism  Autism-spectrum quotient  Bahasa Malaysia  Culture  Mandarin  Response style Index. décimale : PER Périodiques Résumé : The autism-spectrum quotient (AQ) measures autistic traits and has been studied in different countries, sometimes with the English version, and sometimes with translated versions. However, the language of the questionnaire might influence non-native English speakers' answering tendency. In the current study we compared the responses on the AQ of multilingual Malaysians (96 participants filled out the AQ in English and Mandarin, and 79 participants filled out English and Bahasa Malaysia). Participants scored higher on the English AQ compared to the Mandarin AQ, whereas there was no difference between the English and Bahasa Malaysia AQ score. Analysis of the response style suggests the same person might display discrepant response styles in different languages, which seems to be related to language proficiency. En ligne : http://dx.doi.org/10.1007/s10803-021-05253-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=485

Psychometric characteristics of the AQ-Adolescent in autistic and non-autistic adolescents / Marieke DE VRIES in Research in Autism Spectrum Disorders, 106 (August 2023)  

Public ISBD [article]  inResearch in Autism Spectrum Disorders > 106 (August 2023) . - 102201 Titre : Psychometric characteristics of the AQ-Adolescent in autistic and non-autistic adolescents Type de document : Texte imprimé et/ou numérique Auteurs : Marieke DE VRIES, Auteur ; Sander BEGEER, Auteur ; Hilde M. GEURTS, Auteur Année de publication : 2023 Article en page(s) : 102201 Langues : Anglais (eng) Mots-clés : Autism-Spectrum Quotient  Adolescent  Factor structure  Clinical utility Index. décimale : PER Périodiques Résumé : The Autism Spectrum Quotient (AQ) measures autistic traits in children and adults. The adolescent version of the AQ is understudied. We analyzed the factor structure, informant- and sex differences, and clinical utility of the AQ adolescent in 1) parent reports from adolescents in the general population (GenPop; AQ50; N = 465), parent reports from autistic adolescents (Netherlands Autism Register, NAR; AQ28 [Hoekstra et al., 2011]; N = 284), and parent- and self-reports of autistic and non-autistic adolescents (MATCH; AQ50; N = 84). The tested AQ-Adult factor models (Hoekstra et al., 2011; Murray, Allison et al., 2017; Murray, McKenzie et al., 2017; Russell-Smith et al., 2011), showed an acceptable fit in the GenPop sample, and the bi-factor AQ28-Hoekstra (Murray et al., 2011) fitted the NAR sample acceptably. On the AQ28-Hoekstra, autistic adolescents scored lower whereas non-autistic adolescents scored higher than their parents (MATCH), and males scored higher than females on several factors (GenPop, NAR). Moreover, this factor model appeared invariant among autistic and non-autistic groups. Two cut-off scores were evaluated with ROC analyses for parent reports. Given the informant differences, these cannot be applied to self-reports. In conclusion, the AQ28-Hoekstra reliably measures autistic traits in adolescents with and without autism. Combining parent and self-report seems most informative. En ligne : https://doi.org/10.1016/j.rasd.2023.102201 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=509 [article] Psychometric characteristics of the AQ-Adolescent in autistic and non-autistic adolescents [Texte imprimé et/ou numérique] / Marieke DE VRIES, Auteur ; Sander BEGEER, Auteur ; Hilde M. GEURTS, Auteur . - 2023 . - 102201. Langues : Anglais (eng) in Research in Autism Spectrum Disorders > 106 (August 2023) . - 102201 Mots-clés : Autism-Spectrum Quotient  Adolescent  Factor structure  Clinical utility Index. décimale : PER Périodiques Résumé : The Autism Spectrum Quotient (AQ) measures autistic traits in children and adults. The adolescent version of the AQ is understudied. We analyzed the factor structure, informant- and sex differences, and clinical utility of the AQ adolescent in 1) parent reports from adolescents in the general population (GenPop; AQ50; N = 465), parent reports from autistic adolescents (Netherlands Autism Register, NAR; AQ28 [Hoekstra et al., 2011]; N = 284), and parent- and self-reports of autistic and non-autistic adolescents (MATCH; AQ50; N = 84). The tested AQ-Adult factor models (Hoekstra et al., 2011; Murray, Allison et al., 2017; Murray, McKenzie et al., 2017; Russell-Smith et al., 2011), showed an acceptable fit in the GenPop sample, and the bi-factor AQ28-Hoekstra (Murray et al., 2011) fitted the NAR sample acceptably. On the AQ28-Hoekstra, autistic adolescents scored lower whereas non-autistic adolescents scored higher than their parents (MATCH), and males scored higher than females on several factors (GenPop, NAR). Moreover, this factor model appeared invariant among autistic and non-autistic groups. Two cut-off scores were evaluated with ROC analyses for parent reports. Given the informant differences, these cannot be applied to self-reports. In conclusion, the AQ28-Hoekstra reliably measures autistic traits in adolescents with and without autism. Combining parent and self-report seems most informative. En ligne : https://doi.org/10.1016/j.rasd.2023.102201 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=509

Self-reported autistic traits and psychosocial outcomes among university students in Malaysia / Mohd Syazwan ZAINAL ; Jee Ching PANG ; Yammy ANG ; Marieke DE VRIES in Autism, 28-1 (January 2024)  

Public ISBD [article]  inAutism > 28-1 (January 2024) . - p.174?186 Titre : Self-reported autistic traits and psychosocial outcomes among university students in Malaysia Type de document : Texte imprimé et/ou numérique Auteurs : Mohd Syazwan ZAINAL, Auteur ; Jee Ching PANG, Auteur ; Yammy ANG, Auteur ; Marieke DE VRIES, Auteur Article en page(s) : p.174?186 Mots-clés : autism spectrum condition  prevalence  psychosocial outcomes  university students Index. décimale : PER Périodiques Résumé : An autism spectrum condition is considered a lifelong condition. Affected individuals typically experience poorer psychosocial outcomes compared to non-autistic individuals. However, in Southeast Asian countries such as Malaysia, research about autism spectrum conditions beyond the early childhood context is scarce, and therefore, the prevalence and psychosocial outcomes of young adults with autism spectrum conditions remain largely unknown. This study aims to explore self-reported autistic traits among university students in Malaysia, and their relation to emotion regulation, stress, self-efficacy and quality of life. Data from 2732 students revealed that 0.3% of the students reported having an autism spectrum condition diagnosis, while 2.5% reported that they suspected having an autism spectrum condition, but did not obtain a formal diagnosis. This indicates that an estimated 2.8% of students might have a diagnosed or suspected autism spectrum condition. These two categories of students were found to have poorer self-efficacy, higher perceived stress and poorer quality of life, as compared to their peers. However, these students were not significantly different from their peers in emotion regulation. Overall, the findings pointed to negative psychosocial outcomes associated with autism spectrum condition and culture-specific associations between autistic traits and psychosocial outcomes. Lay abstract Most research on autism spectrum conditions is done on young children and not as much on young adults with autism spectrum conditions. Because of this, not much is known about how common autism spectrum conditions are in young adults and how they affect their mental and social health, especially in Southeast Asia. Based on self-reports, 2.8% of the 2732 university students we looked at in Malaysia might have been diagnosed or thought to have an autism spectrum condition. Students who said they had or thought they had autism spectrum conditions had lower self-efficacy, more stress and a lower quality of life than students who said they did not have autism spectrum conditions. The results showed that university students with autism spectrum condition are more likely to have bad psychological and social outcomes than their peers without autism spectrum condition. Also, the link between autistic traits and psychosocial outcomes could depend on the culture. En ligne : https://dx.doi.org/10.1177/13623613231167501 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=519 [article] Self-reported autistic traits and psychosocial outcomes among university students in Malaysia [Texte imprimé et/ou numérique] / Mohd Syazwan ZAINAL, Auteur ; Jee Ching PANG, Auteur ; Yammy ANG, Auteur ; Marieke DE VRIES, Auteur . - p.174?186. in Autism > 28-1 (January 2024) . - p.174?186 Mots-clés : autism spectrum condition  prevalence  psychosocial outcomes  university students Index. décimale : PER Périodiques Résumé : An autism spectrum condition is considered a lifelong condition. Affected individuals typically experience poorer psychosocial outcomes compared to non-autistic individuals. However, in Southeast Asian countries such as Malaysia, research about autism spectrum conditions beyond the early childhood context is scarce, and therefore, the prevalence and psychosocial outcomes of young adults with autism spectrum conditions remain largely unknown. This study aims to explore self-reported autistic traits among university students in Malaysia, and their relation to emotion regulation, stress, self-efficacy and quality of life. Data from 2732 students revealed that 0.3% of the students reported having an autism spectrum condition diagnosis, while 2.5% reported that they suspected having an autism spectrum condition, but did not obtain a formal diagnosis. This indicates that an estimated 2.8% of students might have a diagnosed or suspected autism spectrum condition. These two categories of students were found to have poorer self-efficacy, higher perceived stress and poorer quality of life, as compared to their peers. However, these students were not significantly different from their peers in emotion regulation. Overall, the findings pointed to negative psychosocial outcomes associated with autism spectrum condition and culture-specific associations between autistic traits and psychosocial outcomes. Lay abstract Most research on autism spectrum conditions is done on young children and not as much on young adults with autism spectrum conditions. Because of this, not much is known about how common autism spectrum conditions are in young adults and how they affect their mental and social health, especially in Southeast Asia. Based on self-reports, 2.8% of the 2732 university students we looked at in Malaysia might have been diagnosed or thought to have an autism spectrum condition. Students who said they had or thought they had autism spectrum conditions had lower self-efficacy, more stress and a lower quality of life than students who said they did not have autism spectrum conditions. The results showed that university students with autism spectrum condition are more likely to have bad psychological and social outcomes than their peers without autism spectrum condition. Also, the link between autistic traits and psychosocial outcomes could depend on the culture. En ligne : https://dx.doi.org/10.1177/13623613231167501 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=519

The factor structure and measurement invariance of the Autism Spectrum Quotient-28: A cross-cultural comparison between Malaysia and the Netherlands / Anke M. SCHEEREN ; Marieke DE VRIES in Autism, 28-1 (January 2024)  

Public ISBD [article]  inAutism > 28-1 (January 2024) . - p.32?42 Titre : The factor structure and measurement invariance of the Autism Spectrum Quotient-28: A cross-cultural comparison between Malaysia and the Netherlands Type de document : Texte imprimé et/ou numérique Auteurs : Anke M. SCHEEREN, Auteur ; Marieke DE VRIES, Auteur Article en page(s) : p.32?42 Mots-clés : autism-spectrum quotient  culture  differential item functioning  factor structure  measurement invariance Index. décimale : PER Périodiques Résumé : Despite several psychometric advantages over the 50-item Autism Spectrum Quotient, an instrument used to measure autistic traits, the abridged AQ-28 and its cross-cultural validity have not been examined as extensively. Therefore, this study aimed to examine the factor structure and measurement invariance of the AQ-28 in 818 Dutch (Mage?=?37.4, 581 females, 233 males, 4 others) and 437 Malaysian (Mage?=?23.0, 328 females, 99 males, 10 others) participants from the general population. The hierarchical structure of the AQ-28 showed fair and good fit in Malaysia and in the Netherlands, respectively. A multi-group invariance analysis supported that the AQ-28 is cross-culturally invariant. Malaysians (M?=?68.63, SD?=?8.33) scored significantly higher than Dutch participants (M?=?51.48, SD?=?10.30) on the AQ-28 while gender was controlled for. While the measurement invariance suggests that the AQ-28 functions similarly in Malaysia and the Netherlands in terms of structure, exploratory analyses showed 11 items with differential item functioning. Hence, while the AQ-28 possesses a stable factor structure and appears to measure the same latent traits in Malaysia and the Netherlands, some items potentially display cultural bias which, in turn, might explain the differences in AQ scores. Lay abstract The AQ-28 is a questionnaire measuring autistic traits, that is, traits that are related to Autism Spectrum Conditions, but its reliability in other cultures has not been thoroughly evaluated. We, therefore, tested whether the properties of the AQ-28 are comparable between two countries with different cultures, Malaysia and the Netherlands. A total of 437 Malaysian and 818 Dutch participants completed the AQ-28 online. We measured whether the AQ-28 measures autistic traits similarly in Malaysia and the Netherlands. The AQ-28 measures autistic traits similarly, and the reliability was acceptable and good in the general population of Malaysia and the Netherlands, respectively. However, Malaysians scored higher than Dutch participants. Moreover, 11 AQ-28 items showed cultural bias, indicating that these items are answered/interpreted differently in Malaysia and the Netherlands. Cross-cultural differences in interpreting, reporting, and/or expressing autistic traits highlighted in this study could potentially explain why some items are culturally biased and why Malaysians score higher on these items. The findings of this work imply that cutoff scores derived from one culture should not be generalised to another culture. Moreover, the findings are informative for future development of culturally neutral or appropriate screening and diagnostic tools for autism. En ligne : https://dx.doi.org/10.1177/13623613221147395 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=519 [article] The factor structure and measurement invariance of the Autism Spectrum Quotient-28: A cross-cultural comparison between Malaysia and the Netherlands [Texte imprimé et/ou numérique] / Anke M. SCHEEREN, Auteur ; Marieke DE VRIES, Auteur . - p.32?42. in Autism > 28-1 (January 2024) . - p.32?42 Mots-clés : autism-spectrum quotient  culture  differential item functioning  factor structure  measurement invariance Index. décimale : PER Périodiques Résumé : Despite several psychometric advantages over the 50-item Autism Spectrum Quotient, an instrument used to measure autistic traits, the abridged AQ-28 and its cross-cultural validity have not been examined as extensively. Therefore, this study aimed to examine the factor structure and measurement invariance of the AQ-28 in 818 Dutch (Mage?=?37.4, 581 females, 233 males, 4 others) and 437 Malaysian (Mage?=?23.0, 328 females, 99 males, 10 others) participants from the general population. The hierarchical structure of the AQ-28 showed fair and good fit in Malaysia and in the Netherlands, respectively. A multi-group invariance analysis supported that the AQ-28 is cross-culturally invariant. Malaysians (M?=?68.63, SD?=?8.33) scored significantly higher than Dutch participants (M?=?51.48, SD?=?10.30) on the AQ-28 while gender was controlled for. While the measurement invariance suggests that the AQ-28 functions similarly in Malaysia and the Netherlands in terms of structure, exploratory analyses showed 11 items with differential item functioning. Hence, while the AQ-28 possesses a stable factor structure and appears to measure the same latent traits in Malaysia and the Netherlands, some items potentially display cultural bias which, in turn, might explain the differences in AQ scores. Lay abstract The AQ-28 is a questionnaire measuring autistic traits, that is, traits that are related to Autism Spectrum Conditions, but its reliability in other cultures has not been thoroughly evaluated. We, therefore, tested whether the properties of the AQ-28 are comparable between two countries with different cultures, Malaysia and the Netherlands. A total of 437 Malaysian and 818 Dutch participants completed the AQ-28 online. We measured whether the AQ-28 measures autistic traits similarly in Malaysia and the Netherlands. The AQ-28 measures autistic traits similarly, and the reliability was acceptable and good in the general population of Malaysia and the Netherlands, respectively. However, Malaysians scored higher than Dutch participants. Moreover, 11 AQ-28 items showed cultural bias, indicating that these items are answered/interpreted differently in Malaysia and the Netherlands. Cross-cultural differences in interpreting, reporting, and/or expressing autistic traits highlighted in this study could potentially explain why some items are culturally biased and why Malaysians score higher on these items. The findings of this work imply that cutoff scores derived from one culture should not be generalised to another culture. Moreover, the findings are informative for future development of culturally neutral or appropriate screening and diagnostic tools for autism. En ligne : https://dx.doi.org/10.1177/13623613221147395 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=519

University Students' Notion of Autism Spectrum Conditions: A Cross-Cultural Study / Marieke DE VRIES in Journal of Autism and Developmental Disorders, 50-4 (April 2020)  

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Working memory and cognitive flexibility-training for children with an autism spectrum disorder: a randomized controlled trial / Marieke DE VRIES in Journal of Child Psychology and Psychiatry, 56-5 (May 2015)  

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