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An Item Analysis of the French Version of the Test for Reception of Grammar among Children and Adolescents with Down Syndrome or Intellectual Disability of Undifferentiated Etiology

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Title: An Item Analysis of the French Version of the Test for Reception of Grammar among Children and Adolescents with Down Syndrome or Intellectual Disability of Undifferentiated Etiology
Language: English
Authors: Facon, Bruno, Magis, David
Source: Journal of Speech, Language, and Hearing Research. Oct 2016 59(5):1190-1197.
Availability: American Speech-Language-Hearing Association. 2200 Research Blvd #250, Rockville, MD 20850. Tel: 301-296-5700; Fax: 301-296-8580; e-mail: slhr@asha.org; Web site: http://jslhr.pubs.asha.org
Peer Reviewed: Y
Page Count: 8
Publication Date: 2016
Document Type: Journal Articles
Reports - Research
Descriptors: Item Analysis, Grammar, Children, Adolescents, Down Syndrome, Intellectual Disability, Etiology, Difficulty Level, Test Items, Comparative Analysis, Test Bias, Statistical Analysis, Developmental Disabilities
DOI: 10.1044/2016_JSLHR-L-15-0179
ISSN: 1092-4388
Abstract: Purpose: An item analysis of Bishop's (1983) Test for Reception of Grammar (TROG) in its French version (F-TROG; Lecocq, 1996) was conducted to determine whether the difficulty of items is similar for participants with or without intellectual disability (ID). Method: In Study 1, responses to the 92 F-TROG items by 55 participants with Down syndrome (DS), 55 with ID of undifferentiated etiology (UND), and 55 typical children (TYP) matched on their F-TROG total score were compared using the transformed item difficulties method, a statistical approach designed to detect differential item functioning (DIF) between groups. In Study 2, an additional comparison involving 526 TYP participants and 526 participants with UND was conducted to increase the statistical power of the analysis. Results: The difficulty of items was highly similar whatever the sample size or clinical status of participants. Fewer than 3.5% of the items were flagged as showing DIF. Conclusions: Tests such as the TROG can be used with confidence in clinical practice as well as in research studies comparing participants with or without ID. Methods designed for investigating potential internal test bias--such as done here--should be more regularly employed in the developmental disability field to affirm the absence of DIF.
Abstractor: As Provided
Entry Date: 2016
Accession Number: EJ1119016
Database: ERIC
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IllustrationInfo
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  Data: An Item Analysis of the French Version of the Test for Reception of Grammar among Children and Adolescents with Down Syndrome or Intellectual Disability of Undifferentiated Etiology
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  Data: <searchLink fieldCode="AR" term="%22Facon%2C+Bruno%22">Facon, Bruno</searchLink><br /><searchLink fieldCode="AR" term="%22Magis%2C+David%22">Magis, David</searchLink>
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  Data: <searchLink fieldCode="SO" term="%22Journal+of+Speech%2C+Language%2C+and+Hearing+Research%22"><i>Journal of Speech, Language, and Hearing Research</i></searchLink>. Oct 2016 59(5):1190-1197.
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  Data: American Speech-Language-Hearing Association. 2200 Research Blvd #250, Rockville, MD 20850. Tel: 301-296-5700; Fax: 301-296-8580; e-mail: slhr@asha.org; Web site: http://jslhr.pubs.asha.org
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  Data: Journal Articles<br />Reports - Research
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– Name: DOI
  Label: DOI
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  Data: 10.1044/2016_JSLHR-L-15-0179
– Name: ISSN
  Label: ISSN
  Group: ISSN
  Data: 1092-4388
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Purpose: An item analysis of Bishop's (1983) Test for Reception of Grammar (TROG) in its French version (F-TROG; Lecocq, 1996) was conducted to determine whether the difficulty of items is similar for participants with or without intellectual disability (ID). Method: In Study 1, responses to the 92 F-TROG items by 55 participants with Down syndrome (DS), 55 with ID of undifferentiated etiology (UND), and 55 typical children (TYP) matched on their F-TROG total score were compared using the transformed item difficulties method, a statistical approach designed to detect differential item functioning (DIF) between groups. In Study 2, an additional comparison involving 526 TYP participants and 526 participants with UND was conducted to increase the statistical power of the analysis. Results: The difficulty of items was highly similar whatever the sample size or clinical status of participants. Fewer than 3.5% of the items were flagged as showing DIF. Conclusions: Tests such as the TROG can be used with confidence in clinical practice as well as in research studies comparing participants with or without ID. Methods designed for investigating potential internal test bias--such as done here--should be more regularly employed in the developmental disability field to affirm the absence of DIF.
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      – Text: English
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    Subjects:
      – SubjectFull: Item Analysis
        Type: general
      – SubjectFull: Grammar
        Type: general
      – SubjectFull: Children
        Type: general
      – SubjectFull: Adolescents
        Type: general
      – SubjectFull: Down Syndrome
        Type: general
      – SubjectFull: Intellectual Disability
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      – SubjectFull: Etiology
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      – SubjectFull: Difficulty Level
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      – SubjectFull: Test Items
        Type: general
      – SubjectFull: Comparative Analysis
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      – SubjectFull: Test Bias
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      – SubjectFull: Statistical Analysis
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      – SubjectFull: Developmental Disabilities
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      – TitleFull: An Item Analysis of the French Version of the Test for Reception of Grammar among Children and Adolescents with Down Syndrome or Intellectual Disability of Undifferentiated Etiology
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