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Related Experiment Videos

SCL 90-R interpretation and brain tumour: a correction factor?

C P Kaplan1

  • 1Division of Neurosurgery, Ohio State University College of Medicine, USA.

Brain Injury
|December 5, 1998
PubMed
Summary

Correcting the Symptom Checklist (SCL 90-R) for neurologic treatment items reduced its sensitivity and ecological validity in brain tumor patients. This adjustment did not improve accurate clinical assessment.

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Area of Science:

  • Psychological assessment
  • Neuro-oncology
  • Psychometrics

Background:

  • The Symptom Checklist (SCL 90-R) is widely used in medical settings.
  • Neurologic patients often exhibit altered SCL 90-R profiles due to treatment endorsements.
  • The ecological validity of the SCL 90-R in neurologic populations is a concern.

Purpose of the Study:

  • To determine if correcting SCL 90-R profiles for neurologic treatment items enhances their validity.
  • To assess if corrected SCL 90-R profiles retain ecological validity in patients with brain tumors.

Main Methods:

  • Compared item endorsement in brain tumor patients to adult non-patient norms.
  • Utilized principal-components analysis to identify and extract somatic treatment items.
  • Calculated corrected T scores and compared them to original SCL 90-R profiles.

Main Results:

  • Extraction of somatic treatment items lowered SCL 90-R scores on several dimensions.
  • Despite score reduction, corrected profiles still indicated higher clinical caseness than interviews.
  • Correction led to reduced sensitivity and poorer ecological validity.

Conclusions:

  • Correcting the SCL 90-R for neurologic treatment items diminishes its sensitivity.
  • The ecological validity of the SCL 90-R is compromised after correction for these items.
  • Adjustments for treatment endorsement may not yield a more accurate clinical picture.

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