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Related Experiment Videos

Estimates of validity and reliability for the hemispheric mode indicator

S E Hartman1, J Hylton

  • 1Department of Anatomy, University of New England, Biddeford, Maine 04005, USA.

Perceptual and Motor Skills
|February 5, 1998
PubMed
Summary

The Hemispheric Mode Indicator shows moderate concurrent validity for measuring cognitive hemispheric dominance. However, test-retest stability is fair, and some items require revision for better measurement of underlying variables.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Educational Measurement

Background:

  • Understanding cognitive hemispheric dominance is crucial for educational and psychological assessments.
  • The Hemispheric Mode Indicator (HMI) is a tool designed to measure this dominance.
  • Its psychometric properties require thorough investigation.

Purpose of the Study:

  • To assess the concurrent validity of the Hemispheric Mode Indicator (HMI) against a well-established measure.
  • To evaluate the test-retest stability of the HMI.
  • To examine the internal structure and item suitability of the HMI.

Main Methods:

  • Product-moment correlation was used to compare HMI scores with the Human Information Processing Survey.
  • Test-retest reliability was assessed over a period for a subset of participants.

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  • Interitem correlations and principal components analyses were conducted to evaluate item performance and dimensionality.

    • Main Results:

    • Concurrent validity was found to be moderate (r = .61 for nurse-anesthetist students, r = .69 for medical students).
    • Test-retest stability for medical students was fair (r = .74).
    • Internal analyses suggested some HMI items were poorly worded, and the scale may measure multiple latent variables.

    Conclusions:

    • The HMI demonstrates acceptable concurrent validity but has limitations in stability and item clarity.
    • Further refinement of the HMI items is recommended to improve its psychometric properties.
    • The current structure of the HMI may not accurately represent a single construct of hemispheric dominance.