Meta‐analytic findings reveal lower means but higher variances in visuospatial ability in dyslexia.
Conflicting empirical and theoretical accounts suggest that dyslexia is associated with either average, enhanced, or impoverished high‐level visuospatial processing relative to controls. Such heterogeneous results could be due to the presence of wider variability in dyslexic samples, which is unlike...
| Publicado en: | British Journal of Psychology Vol. 109; no. 4; pp. 897 - 917 |
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| Autores principales: | , , , |
| Formato: | Artículo |
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Wiley-Blackwell
Nov2018
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| 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=132168226&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 132168226 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 00071269 BJP jtl: British Journal of Psychology issn: 00071269 maglogo: Y pubinfo: dt: Nov2018 vid: 109 iid: 4 pid: 480 pub: Wiley-Blackwell artinfo: ui: 132168226 10.1111/bjop.12321 ppf: 897 ppct: 20 formats: fmt: – @attributes: type: T – @attributes: type: P size: 555KB tig: atl: Meta‐analytic findings reveal lower means but higher variances in visuospatial ability in dyslexia. aug: au: Chamberlain, Rebecca Brunswick, Nicola Siev, Joseph McManus, I. C. affil: Department of Psychology, Goldsmiths, University of London, UK Department of Psychology, Middlesex University, London, UK Department of Psychology, Brooklyn College, City University of New York, USA Department of Psychology, University College London, UK su: Mental illness treatment Attention Memory Task performance Therapeutics Dyslexia Meta-analysis Space perception Visual perception Systematic reviews Effect sizes (Statistics) Descriptive statistics sug: subj: Mental illness treatment Attention Memory Task performance Therapeutics Dyslexia Meta-analysis Space perception Visual perception Systematic reviews Effect sizes (Statistics) Descriptive statistics keyword: dyslexia meta‐analysis of variance visuospatial ability dyslexia meta‐analysis of variance visuospatial ability ab: Conflicting empirical and theoretical accounts suggest that dyslexia is associated with either average, enhanced, or impoverished high‐level visuospatial processing relative to controls. Such heterogeneous results could be due to the presence of wider variability in dyslexic samples, which is unlikely to be identified at the single study level, due to lack of power. To address this, this study reports a meta‐analysis of means and variances in high‐level visuospatial ability in 909 non‐dyslexic and 956 dyslexic individuals. The findings suggest that dyslexia is associated not only with a lower mean performance on visuospatial tasks but also with greater variability in performance. Through novel meta‐analytic techniques, we demonstrate a negative effect size for mean differences (−.457), but a positive effect size for SD differences (+.118; SD ratio = 1.107). In doing so, this is the first study to demonstrate impoverished visuospatial processing of the majority of individuals with dyslexia in addition to greater variance in performance in this group. The findings advocate for further consideration of both the presence of, and reasons for, increased variance in perception, attention, and memory across neurodevelopmental disorders. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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