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Related Experiment Videos

Inpatient Memory Impairment Scale: a cross-validation and extension study.

H P Godfrey1, R G Knight

  • 1Department of Psychology, University of Otago, Dunedin, New Zealand.

Journal of Clinical Psychology
|September 1, 1988
PubMed
Summary

The Inpatient Memory Impairment Scale (IMIS) reliably assesses memory deficits in hospitalized patients. This behavioral scale effectively differentiates amnesiacs from alcoholics and psychiatric patients, showing strong psychometric properties.

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Area of Science:

  • Neuropsychology
  • Clinical Psychology
  • Psychometrics

Background:

  • Assessing cognitive deficits in hospitalized patients is crucial for diagnosis and treatment.
  • Existing memory assessment tools may not fully capture the nuances of inpatient memory impairment.
  • The Inpatient Memory Impairment Scale (IMIS) is a behavioral rating scale designed for this purpose.

Purpose of the Study:

  • To investigate the psychometric properties of the Inpatient Memory Impairment Scale (IMIS).
  • To evaluate the scale's reliability, internal consistency, and ability to discriminate between patient groups.
  • To validate the IMIS as a tool for assessing memory impairment in hospitalized individuals.

Main Methods:

  • The study utilized matched groups of 18 amnesiacs, 20 chronic alcoholics, and 20 psychiatric patients.

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  • Psychometric properties including internal consistency and interrater reliability were assessed.
  • The IMIS scores were correlated with performance on various memory tasks.

    • Main Results:

    • The IMIS demonstrated high internal consistency and interrater reliability with two raters.
    • The scale showed significant correlations with a range of memory tasks.
    • The IMIS successfully discriminated between amnesiacs and chronic alcoholics, and between amnesiacs and psychiatric patients.

    Conclusions:

    • The Inpatient Memory Impairment Scale (IMIS) possesses encouraging psychometric properties, validated in this study.
    • The IMIS is a reliable and valid tool for assessing memory impairment in hospitalized populations.
    • Ecologically valid behavioral measures of cognitive deficits are a promising area for future research.