Intraindividual Variability in Attention-Deficit/Hyperactivity Disorder: An Ex-Gaussian Approach.
Higher intraindividual variability (IIV) of response times is consistently noted in children with attention-deficit/hyperactivity disorder (ADHD). The current study investigated whether an ex-Gaussian estimate of IIV in children ages 6–13 years-old could differentiate between children with and witho...
| Publicado en: | Child Psychiatry & Human Development Vol. 57; no. 2; pp. 504 - 516 |
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| Autores principales: | , , , |
| Formato: | Artículo |
| Publicado: |
Springer Nature
Apr2026
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=193366288&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 193366288 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 0009398X CPH jtl: Child Psychiatry & Human Development issn: 0009398X maglogo: N pubinfo: dt: Apr2026 vid: 57 iid: 2 pid: 237 pub: Springer Nature artinfo: ui: 193366288 10.1007/s10578-024-01722-1 ppf: 504 ppct: 12 formats: fmt: – @attributes: type: T – @attributes: type: P size: 865KB tig: atl: Intraindividual Variability in Attention-Deficit/Hyperactivity Disorder: An Ex-Gaussian Approach. aug: au: Ali, Sheliza Karr, Justin E. MacDonald, Stuart W. S. Macoun, Sarah J. affil: https://ror.org/02k3smh20 Department of Neurology, University of Kentucky, Lexington, KY, USA https://ror.org/02k3smh20 Department of Psychology, University of Kentucky, Lexington, KY, USA https://ror.org/01zf2fw60 Department of Psychology, University of Victoria, Victoria, BC, USA su: Attention-deficit hyperactivity disorder Variability (Psychometrics) Diagnosis Continuous performance test Cognitive processing speed Response inhibition Statistical models Behavioral assessment sug: subj: Attention-deficit hyperactivity disorder Variability (Psychometrics) Diagnosis Continuous performance test Cognitive processing speed Response inhibition Statistical models Behavioral assessment keyword: Attention Attention deficit/hyperactivity disorder Intraindividual variability Psychology and Cognitive Sciences Psychology Medical and Health Sciences Public Health and Health Services Response time Attention Attention deficit/hyperactivity disorder Intraindividual variability Psychology and Cognitive Sciences Psychology Medical and Health Sciences Public Health and Health Services Response time ab: Higher intraindividual variability (IIV) of response times is consistently noted in children with attention-deficit/hyperactivity disorder (ADHD). The current study investigated whether an ex-Gaussian estimate of IIV in children ages 6–13 years-old could differentiate between children with and without ADHD. Children completed a computerized go/no-go task to estimate trial-by-trial IIV and a continuous performance test (CPT) to estimate inattention and hyperactivity/impulsivity. Parents completed questionnaires assessing inattention and hyperactive/impulsive behaviors. IIV, commission errors, and attention problems as rated by parents were significantly greater in the ADHD group. Groups did not differ on errors of omission, but IIV was predictive of omission errors and parent ratings of inattention and hyperactivity/impulsivity. IIV predicted group membership (ADHD vs Control) whereas errors of omission did not. However, IIV did not improve diagnostic accuracy when parent ratings were used, such that parent ratings were superior at determining diagnosis. Current results support the use of IIV, based on the ex-Gaussian approach, as an objective measure of attention problems over omission errors on sustained attention CPT-type tasks. Additionally, while parent ratings of attention impairment remain the best predictor of ADHD diagnostic status, IIV may be helpful in determining when further assessment is required in the absence of those ratings. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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