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Psychometric Properties of the Autism-Spectrum Quotient for Assessing Low and High Levels of Autistic Traits in College Students / Jennifer L. STEVENSON in Journal of Autism and Developmental Disorders, 47-6 (June 2017)
[article]
Titre : Psychometric Properties of the Autism-Spectrum Quotient for Assessing Low and High Levels of Autistic Traits in College Students Type de document : Texte imprimé et/ou numérique Auteurs : Jennifer L. STEVENSON, Auteur ; Kari R. HART, Auteur Article en page(s) : p.1838-1853 Langues : Anglais (eng) Mots-clés : Autism-Spectrum Quotient Autistic traits Internal consistency Test–retest reliability Scoring method Subscale scores Index. décimale : PER Périodiques Résumé : The current study systematically investigated the effects of scoring and categorization methods on the psychometric properties of the Autism-Spectrum Quotient. Four hundred and three college students completed the Autism-Spectrum Quotient at least once. Total scores on the Autism-Spectrum Quotient had acceptable internal consistency and test–retest reliability using a binary or Likert scoring method, but the results were more varied for the subscales. Overall, Likert scoring yielded higher internal consistency and test–retest reliability than binary scoring. However, agreement in categorization of low and high autistic traits was poor over time (except for a median split on Likert scores). The results support using Likert scoring and administering the Autism-Spectrum Quotient at the same time as the task of interest with neurotypical participants. En ligne : http://dx.doi.org/10.1007/s10803-017-3109-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=308
in Journal of Autism and Developmental Disorders > 47-6 (June 2017) . - p.1838-1853[article] Psychometric Properties of the Autism-Spectrum Quotient for Assessing Low and High Levels of Autistic Traits in College Students [Texte imprimé et/ou numérique] / Jennifer L. STEVENSON, Auteur ; Kari R. HART, Auteur . - p.1838-1853.
Langues : Anglais (eng)
in Journal of Autism and Developmental Disorders > 47-6 (June 2017) . - p.1838-1853
Mots-clés : Autism-Spectrum Quotient Autistic traits Internal consistency Test–retest reliability Scoring method Subscale scores Index. décimale : PER Périodiques Résumé : The current study systematically investigated the effects of scoring and categorization methods on the psychometric properties of the Autism-Spectrum Quotient. Four hundred and three college students completed the Autism-Spectrum Quotient at least once. Total scores on the Autism-Spectrum Quotient had acceptable internal consistency and test–retest reliability using a binary or Likert scoring method, but the results were more varied for the subscales. Overall, Likert scoring yielded higher internal consistency and test–retest reliability than binary scoring. However, agreement in categorization of low and high autistic traits was poor over time (except for a median split on Likert scores). The results support using Likert scoring and administering the Autism-Spectrum Quotient at the same time as the task of interest with neurotypical participants. En ligne : http://dx.doi.org/10.1007/s10803-017-3109-1 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=308 Stability of the acoustic startle response and its modulation in children with typical development and those with autism spectrum disorders: A one-year follow-up / Hidetoshi TAKAHASHI in Autism Research, 10-4 (April 2017)
[article]
Titre : Stability of the acoustic startle response and its modulation in children with typical development and those with autism spectrum disorders: A one-year follow-up Type de document : Texte imprimé et/ou numérique Auteurs : Hidetoshi TAKAHASHI, Auteur ; Takayuki NAKAHACHI, Auteur ; Andrew STICKLEY, Auteur ; Makoto ISHITOBI, Auteur ; Yoko KAMIO, Auteur Article en page(s) : p.673-679 Langues : Anglais (eng) Mots-clés : autism spectrum disorders acoustic startle response prepulse inhibition sensory-motor gating habituation startle latency long-term stability test–retest reliability Index. décimale : PER Périodiques Résumé : Auditory hyper-reactivity is a common sensory–perceptual abnormality that interrupts behavioral adaptations in autism spectrum disorders (ASD). Recently, prolonged acoustic startle response (ASR) latency and hyper-reactivity to weak acoustic stimuli were reported in children with ASD. Indexes of ASR and its modulation are known to be stable biological markers for translational research in the adult population. However, little is known about the stability of these indexes in children. Thus, the objective of our study was to investigate the stability of neurophysiological ASR indexes in children with ASD and typical development (TD). Participants included 12 children with ASD and 24 with TD. Mean startle magnitudes to acoustic stimuli presented at 65–105 dB in increments of 10 dB were analyzed. Average peak startle latency (PSL), ASR modulation of habituation, and prepulse inhibition were also analyzed. These startle measures were examined after a follow-up period of 15.7?±?5.1 months from baseline. At both baseline and in the follow-up period, children with ASD had significantly greater startle magnitudes to weak stimuli of 65–85 dB and more prolonged PSL compared with controls. Intraclass correlation coefficients for these ASR measures between both periods were 0.499–0.705. None of the ASR measures differed significantly between the two periods. Our results suggest that prolonged PSL and greater startle magnitudes to weak stimuli in children with ASD might serve as moderately stable neurophysiological indexes of ASD. En ligne : http://dx.doi.org/10.1002/aur.1710 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=307
in Autism Research > 10-4 (April 2017) . - p.673-679[article] Stability of the acoustic startle response and its modulation in children with typical development and those with autism spectrum disorders: A one-year follow-up [Texte imprimé et/ou numérique] / Hidetoshi TAKAHASHI, Auteur ; Takayuki NAKAHACHI, Auteur ; Andrew STICKLEY, Auteur ; Makoto ISHITOBI, Auteur ; Yoko KAMIO, Auteur . - p.673-679.
Langues : Anglais (eng)
in Autism Research > 10-4 (April 2017) . - p.673-679
Mots-clés : autism spectrum disorders acoustic startle response prepulse inhibition sensory-motor gating habituation startle latency long-term stability test–retest reliability Index. décimale : PER Périodiques Résumé : Auditory hyper-reactivity is a common sensory–perceptual abnormality that interrupts behavioral adaptations in autism spectrum disorders (ASD). Recently, prolonged acoustic startle response (ASR) latency and hyper-reactivity to weak acoustic stimuli were reported in children with ASD. Indexes of ASR and its modulation are known to be stable biological markers for translational research in the adult population. However, little is known about the stability of these indexes in children. Thus, the objective of our study was to investigate the stability of neurophysiological ASR indexes in children with ASD and typical development (TD). Participants included 12 children with ASD and 24 with TD. Mean startle magnitudes to acoustic stimuli presented at 65–105 dB in increments of 10 dB were analyzed. Average peak startle latency (PSL), ASR modulation of habituation, and prepulse inhibition were also analyzed. These startle measures were examined after a follow-up period of 15.7?±?5.1 months from baseline. At both baseline and in the follow-up period, children with ASD had significantly greater startle magnitudes to weak stimuli of 65–85 dB and more prolonged PSL compared with controls. Intraclass correlation coefficients for these ASR measures between both periods were 0.499–0.705. None of the ASR measures differed significantly between the two periods. Our results suggest that prolonged PSL and greater startle magnitudes to weak stimuli in children with ASD might serve as moderately stable neurophysiological indexes of ASD. En ligne : http://dx.doi.org/10.1002/aur.1710 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=307