Evidence map›Paper›PMID 31332875›Full record

ArticleDyslexia (Chichester, England)2019

Are children with developmental dyslexia all the same? A cluster analysis with more than 300 cases.

David Giofrè, Enrico Toffalini, Serena Provazza, Antonio Calcagnì, Gianmarco Altoè, Daniel J Roberts

Open access · hybridAbstract read
In one paragraph

Article in Dyslexia (Chichester, England), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
10.1field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 49 citations in OpenAlex.

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  5. The Role of Visual Factors in Dyslexia.Journal of cognition · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 2 countries.

David GiofrèDepartment of Educational Sciences, University of Genoa, Genoa, Italy.ORCID https://orcid.org/0000-0002-1992-6271
Enrico ToffaliniDepartment of General Psychology, University of Padova, Padova, Italy.ORCID https://orcid.org/0000-0002-1404-5133
Serena ProvazzaNatural Sciences and Psychology, Liverpool John Moores University, Liverpool, UK.
Antonio CalcagnìDepartment of Developmental and Social Psychology, University of Padova, Padova, Italy.ORCID https://orcid.org/0000-0003-4969-7577
Gianmarco AltoèDepartment of Developmental and Social Psychology, University of Padova, Padova, Italy.
Daniel J RobertsCentre for Cognitive Neuroscience, Division of Psychology, College of Health and Life Sciences, Brunel University London, Uxbridge, UK.
University of Padua · ITBrunel University of London · GBLiverpool John Moores University · GBUniversity of Genoa · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Reading is vital to every aspect of modern life, exacerbated by reliance of the internet, email, and social media on the written medium. Developmental dyslexia (DD) characterizes a disorder in which the core deficit involves reading. Traditionally, DD is thought to be associated with a phonological impairment. However, recent evidence has begun to suggest that the reading impairment in some individuals is provoked by a visual processing deficit. In this paper, we present WISC-IV data from more than 300 Italian children with a diagnosis of DD to investigate the manifestation of phonological and visual subtypes. Our results indicate the existence of two clusters of children with DD. In one cluster, the deficit was more pronounced in the phonological component, while both clusters were impaired in visual processing. These data indicate that DD may be an umbrella term that encompasses different profiles. From a theoretical perspective, our results demonstrate that dyslexia cannot be explained in terms of an isolated phonological deficit alone; visual impairment plays a crucial role. Moreover, general rather than specific accounts of DD are discussed.

Indexed as

ReadingVisual PerceptionArticulation DisordersChildCluster AnalysisDyslexiaFemaleHumansItalyMalePerceptual DisordersWechsler ScalesDevelopmental dyslexia (DD)dual-route model (DRC)specific learning disabilities (SLD)triangle modelWISC-IV

Identifiers

PMID31332875
PMCPMC6771784
OpenAlexW2962895926

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.