Double-Deficit Hypothesis in a Clinical Sample.

This study explored the double-deficit hypothesis (DDH) in a transparent orthography (Finnish) and extended the view from reading disabilities to comorbidity of learning-related problems in math and attention. Children referred for evaluation of learning disabilities in second through sixth grade (N...

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Publicado en:Journal of Learning Disabilities Vol. 49; no. 5; pp. 546 - 561
Autores principales: Heikkilä, Riikka, Torppa, Minna, Aro, Mikko, Närhi, Vesa, Ahonen, Timo
Formato: pictorial research tables/charts Journal Article
Publicado: Sage Publications Inc. Sep/Oct2016
Acceso en línea:Ver este registro en EBSCOhost
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      dt: Sep/Oct2016
      vid: 49
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      pub: Sage Publications Inc.
      place: Thousand Oaks, California
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        atl: Double-Deficit Hypothesis in a Clinical Sample.
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        au:
          Heikkilä, Riikka
          Torppa, Minna
          Aro, Mikko
          Närhi, Vesa
          Ahonen, Timo
        affil: Niilo Mäki Institute, Jyväskylä, Finland
      sug:
        subj:
          Reading Disorders In Infancy and Childhood
          Dyscalculia In Infancy and Childhood
          Comorbidity
          Attention Deficit Hyperactivity Disorder In Infancy and Childhood
          Students, Elementary Finland
          Scales
          Language Tests
          Descriptive Statistics
          Data Analysis Software
          P-Value
          Human
          Female
          Male
          Coefficient alpha
          Two-Tailed Test
          Analysis of Variance
          Kruskal-Wallis Test
          Intelligence Tests
          Spelling
          Spearman's Rank Correlation Coefficient
          Analysis of Covariance
          Child
          Finland
          Child Behavior Checklist
          Checklists
          Funding Source
          Child: 6-12 years
          Female
          Male
      ab: This study explored the double-deficit hypothesis (DDH) in a transparent orthography (Finnish) and extended the view from reading disabilities to comorbidity of learning-related problems in math and attention. Children referred for evaluation of learning disabilities in second through sixth grade (N = 205) were divided into four groups based on rapid automatized naming (RAN) and phonological awareness (PA) according to the DDH: the double-deficit group, the naming speed deficit–only group, the phonological deficit–only group, and the no-deficit group. The results supported the DDH in that the prevalence and severity of reading disability were greatest in the double-deficit group. Despite the greater prevalence of reading disabilities in single-deficit groups compared to the no-deficit group, the means of reading measures in the single-deficit groups were similar to those of the no-deficit group. The PA single-deficit group was poorer in spelling than the no-deficit group and single-naming-deficit group. Deficits in RAN or PA were primarily linked to reading disabilities but not with math or attention problems. The results supported the DDH partially and indicate that deficits in RAN and PA are specific to reading disabilities.
      pubtype: Academic Journal
      doctype:
        pictorial
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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