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Related Experiment Videos

Language matches: illuminating or confounding? Research note

E Plante1, L Swisher, B Kiernan

  • 1Department of Speech and Hearing Sciences, University of Arizona, Tucson 85721.

Journal of Speech and Hearing Research
|August 1, 1993
PubMed
Summary
This summary is machine-generated.

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Using dual control groups in language research is problematic. Matching language-disordered children by language level confounds age effects and can lead to misinterpretations of findings.

Area of Science:

  • Child language development
  • Clinical linguistics
  • Developmental psychology

Background:

  • Studies on language-disordered children often use both age-matched and language-matched controls.
  • This dual-control approach aims to isolate the effect of language level on performance.
  • However, the interpretation of results from such studies presents significant challenges.

Purpose of the Study:

  • To critically evaluate the methodological issues associated with using dual control groups (age-matched and language-matched) in studies of language-disordered children.
  • To highlight the conceptual problems in interpreting performance differences between language-disordered children and their matched controls.
  • To address the potential for misinterpretation of findings, particularly null results.

Main Methods:

Related Experiment Videos

  • Conceptual analysis of control group selection in language disorder research.
  • Examination of the multidimensional nature of language skills.
  • Critique of the confounding effects introduced by language-level matching.

Main Results:

  • Matching by language level is problematic due to language's multidimensional nature.
  • Language-level matching introduces an extraneous age effect, confounding interpretation.
  • Null findings comparing language-disordered and language-matched groups can be erroneously interpreted.

Conclusions:

  • The use of language-matched controls alongside age-matched controls in language disorder studies complicates interpretation.
  • Researchers must carefully consider the multidimensionality of language and potential confounding variables like age.
  • Alternative or refined methodologies may be needed to accurately assess performance in language-disordered populations.