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Sensitivity and specificity of MMPI-2 neurologic correction factors: receiver operating characteristic analysis

David M Glassmire1, Dominique I Kinney, Roger L Greene

  • 1Pacific Graduate School of Psychology, USA. davidglassmire@hotmail.com

Assessment
|September 25, 2003
PubMed

Insights

Correction factors for the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) show high sensitivity in identifying closed-head-injury (CHI) patients but lack specificity when differentiating them from psychiatric patients.

Area of Science:

  • Neuropsychology
  • Psychometrics
  • Clinical Psychology

Background:

  • The Minnesota Multiphasic Personality Inventory-2 (MMPI-2) is frequently used in assessing patients with closed-head injury (CHI).
  • Certain MMPI-2 items may reflect neurological symptoms rather than psychopathology in CHI patients.
  • Correction factors have been proposed to remove these potentially confounding items, aiming to improve diagnostic accuracy.

Purpose of the Study:

  • To evaluate the effectiveness of three proposed MMPI-2 neurologic correction factors.
  • To determine the sensitivity and specificity of these correction factors in distinguishing CHI patients from other groups.

Main Methods:

  • Receiver operating characteristic (ROC) analysis was utilized.
  • The study compared the performance of three correction factors in discriminating between CHI patients and normal individuals.
  • The study also assessed the discrimination between CHI patients and psychiatric patients.

Main Results:

  • All three correction factors exhibited high sensitivity in identifying CHI patients compared to normal individuals.
  • However, the correction factors demonstrated low specificity when differentiating CHI patients from psychiatric patients.
  • This suggests potential for misclassification in the presence of comorbid psychiatric conditions.

Conclusions:

  • MMPI-2 neurologic correction factors are sensitive in detecting CHI but may not accurately distinguish CHI patients from those with psychiatric disorders.
  • Caution is advised when applying these correction factors, especially in clinical populations with potential co-occurring psychiatric conditions.
  • Further research may be needed to refine interpretive strategies for the MMPI-2 in CHI populations with complex diagnostic profiles.

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