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Related Experiment Videos

Reliability and validity of the Apathy Evaluation Scale.

R S Marin1, R C Biedrzycki, S Firinciogullari

  • 1Department of Psychiatry, University of Pittsburgh School of Medicine, PA.

Psychiatry Research
|August 1, 1991
PubMed
Summary
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The Apathy Evaluation Scale (AES) reliably measures apathy, a lack of motivation. This validated scale helps assess apathy across different patient groups and research applications.

Area of Science:

  • Psychology
  • Neurology
  • Gerontology

Background:

  • Apathy is defined as a lack of motivation not caused by other cognitive or emotional issues.
  • The Apathy Evaluation Scale (AES) operationalizes apathy as deficits in goal-directed behavior.

Purpose of the Study:

  • To provide evidence for the reliability and construct validity of the Apathy Evaluation Scale (AES).
  • To evaluate three versions of the AES (clinician, informant, self-rated).

Main Methods:

  • Evaluated 123 subjects (ages 53-85) with stroke, Alzheimer's disease, depression, or as healthy controls.
  • Assessed internal consistency, test-retest, interrater reliability, and various validity measures.
  • Examined AES's ability to discriminate between groups and from depression/anxiety measures.

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Main Results:

  • All three versions of the AES demonstrated satisfactory reliability.
  • Evidence supported the construct validity of the AES, including convergent and predictive validity.
  • The scale effectively discriminated between patient groups and from other psychological measures.

Conclusions:

  • The Apathy Evaluation Scale (AES) is a reliable and valid instrument for assessing apathy.
  • The AES has potential applications in both clinical practice and research for evaluating apathy.