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Related Experiment Videos

Trail Making Test: issues in normative data selection.

V M Soukup1, F Ingram, J J Grady

  • 1Department of Neurology, University of Texas Medical Branch, Galveston, Texas, USA.

Applied Neuropsychology
|December 2, 2005
PubMed
Summary
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The Trail Making Test (TMT) is widely used but lacks comprehensive adult norms. This review highlights significant variability, cautioning against using pooled data and emphasizing the need for appropriate normative groups for accurate cognitive dysfunction assessment.

Area of Science:

  • Neuropsychology
  • Cognitive Assessment
  • Clinical Psychology

Background:

  • The Trail Making Test (TMT) is a frequently used neuropsychological instrument for cognitive dysfunction evaluation.
  • Despite extensive research, a comprehensive review of adult TMT normative data is lacking.

Purpose of the Study:

  • To examine available TMT normative reports and summarize sample characteristics.
  • To address the need for a comprehensive review of adult TMT normative literature.
  • To provide clinicians with selected normative reports for different age groups.

Main Methods:

  • Review of existing Trail Making Test (TMT) normative reports.
  • Analysis of sample characteristics across studies.
  • Compilation of selected normative reports for adolescent/young adult, adult, and older adult groups.

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Main Results:

  • Significant variability exists between TMT normative studies, precluding the use of meta-norms.
  • Biased results may occur if inappropriate normative data sets are used.
  • Moderator variables and procedural differences contribute to variability in TMT performance.

Conclusions:

  • Clinicians must select normative comparison groups that closely match patient characteristics for accurate TMT interpretation.
  • The variability underscores the importance of careful consideration of normative data in clinical practice.
  • Selected normative reports are provided to aid clinicians in choosing appropriate comparison groups.