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Measuring functioning in daily activities for persons with dementia

W D Spector1

  • 1Center for Organization and Delivery Studies, Agency for Health Care Policy and Research, Rockville, Maryland 20052, USA.

Alzheimer Disease and Associated Disorders
|January 1, 1997
PubMed
Summary
This summary is machine-generated.

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This review examines scales for measuring independent living in individuals with dementia. It assesses dementia-specific tools, focusing on their validity and whether they measure disability or cognitive impairment itself.

Area of Science:

  • Gerontology
  • Neuroscience
  • Psychometrics

Background:

  • Assessing functional disability in persons with dementia is crucial for care planning and intervention.
  • Existing generic measures of independent living may not adequately capture the complexities of dementia-related functional decline.
  • There is a need to evaluate the specific tools used for this population.

Purpose of the Study:

  • To review and evaluate scales designed for assessing independent living tasks in individuals with dementia.
  • To critically analyze dementia-specific scales, including both proxy-report and performance-based measures.
  • To determine if these scales measure the functional consequences of cognitive impairment or the impairments themselves.

Main Methods:

  • Literature review of existing scales for independent living.

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  • Critical evaluation of dementia-specific scales, considering their psychometric properties.
  • Analysis of criticisms of generic independent living measures in the context of dementia.

    • Main Results:

    • Generic measures often face criticisms when applied to demented populations.
    • Dementia-specific scales, whether proxy or performance-based, show varied approaches to measurement.
    • The distinction between measuring disability consequences versus cognitive impairments remains a key challenge.

    Conclusions:

    • The current state of measuring functional disability in dementia requires careful consideration of scale validity, bias, and scaling properties.
    • Further refinement of dementia-specific scales is needed to accurately capture functional decline.
    • Clarifying the construct being measured (disability vs. cognitive impairment) is essential for appropriate assessment and intervention.