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The misplaced-objects task: a brief test for memory dysfunction in the aged.

T Crook, S Ferris, M McCarthy

    Journal of the American Geriatrics Society
    |June 1, 1979
    PubMed
    Summary
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    This study presents a simple memory test for older adults, using a house board and object placement. The test effectively distinguishes between aged individuals with and without memory impairment.

    Area of Science:

    • Gerontology
    • Neuropsychology
    • Cognitive Assessment

    Background:

    • Memory dysfunction is a significant concern in the aging population.
    • A need exists for simple, valid, and reliable cognitive screening tools for the elderly.

    Purpose of the Study:

    • To introduce and validate a brief, user-friendly memory assessment for aged individuals.
    • To evaluate the test's face validity, discriminate validity, and test-retest reliability.

    Main Methods:

    • A novel memory test involving object placement in a seven-room house diagram.
    • Subjects recalled object locations after a 5-30 minute interval.
    • Discriminate validity assessed by comparing recall in impaired aged, unimpaired aged, and young normal groups.

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    Main Results:

    • Aged individuals with memory impairment recalled significantly fewer objects (mean=6.0) than unimpaired aged (mean=8.9) and young normal (mean=9.9) individuals.
    • The test demonstrated satisfactory test-retest reliability (r=.84) in a subgroup of impaired patients.
    • The game-like structure enhanced subject engagement and reduced test anxiety.

    Conclusions:

    • The presented memory test is a valid and reliable tool for assessing memory dysfunction in the aged.
    • Its ease of use and engaging format make it suitable for a wide range of elderly subjects.
    • Further development of this promising cognitive assessment measure is recommended.