Predictors of developmental dyslexia in European orthographies with varying complexity. - Archive ouverte HAL
Journal Articles Journal of Child Psychology and Psychiatry Year : 2013

Predictors of developmental dyslexia in European orthographies with varying complexity.

Karin Landerl
  • Function : Author
Kristina Moll
  • Function : Author
Heikki Lyytinen
  • Function : Author
Paavo H T Leppänen
  • Function : Author
Kaisa Lohvansuu
  • Function : Author
Julie Williams
  • Function : Author
Jürgen Bartling
  • Function : Author
Jennifer Bruder
  • Function : Author
Sarah Kunze
  • Function : Author
Nina Neuhoff
  • Function : Author
Dénes Tóth
  • Function : Author
Ferenc Honbolygó
  • Function : Author
Valéria Csépe
  • Function : Author
Caroline Bogliotti
Stéphanie Iannuzzi
  • Function : Author
Emilie Longeras
  • Function : Author
Camille Chabernaud
  • Function : Author
Florence Delteil-Pinton
  • Function : Author
Isabelle Comte-Gervais
  • Function : Author
Isabelle Soares-Boucaud
  • Function : Author
Christophe-Loïc Gérard
  • Function : Author
Leo Blomert
  • Function : Author
Anniek Vaessen
  • Function : Author
Patty Gerretsen
  • Function : Author
Michel Ekkebus
  • Function : Author
Daniel Brandeis
  • Function : Author
Urs Maurer
  • Function : Author
Enrico Schulz
  • Function : Author
Sanne van Der Mark
  • Function : Author

Abstract

BACKGROUND: The relationship between phoneme awareness, rapid automatized naming (RAN), verbal short-term/working memory (ST/WM) and diagnostic category is investigated in control and dyslexic children, and the extent to which this depends on orthographic complexity. METHODS: General cognitive, phonological and literacy skills were tested in 1,138 control and 1,114 dyslexic children speaking six different languages spanning a large range of orthographic complexity (Finnish, Hungarian, German, Dutch, French, English). RESULTS: Phoneme deletion and RAN were strong concurrent predictors of developmental dyslexia, while verbal ST/WM and general verbal abilities played a comparatively minor role. In logistic regression models, more participants were classified correctly when orthography was more complex. The impact of phoneme deletion and RAN-digits was stronger in complex than in less complex orthographies. CONCLUSIONS: Findings are largely consistent with the literature on predictors of dyslexia and literacy skills, while uniquely demonstrating how orthographic complexity exacerbates some symptoms of dyslexia.

Dates and versions

hal-00965034 , version 1 (24-03-2014)

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Cite

Karin Landerl, Franck Ramus, Kristina Moll, Heikki Lyytinen, Paavo H T Leppänen, et al.. Predictors of developmental dyslexia in European orthographies with varying complexity.. Journal of Child Psychology and Psychiatry, 2013, 54 (6), pp.686-94. ⟨10.1111/jcpp.12029⟩. ⟨hal-00965034⟩
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