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Language impairment evaluation in aphasic patients: developing more efficient measures.

P P Phillips, G Halpin

    Archives of Physical Medicine and Rehabilitation
    |July 1, 1978
    PubMed
    Summary
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    Two new short forms of the Porch Index of Communicative Ability (PICA) accurately measure communication skills in aphasic patients. These forms demonstrate reliability and validity comparable to the full test.

    Area of Science:

    • Speech and Language Pathology
    • Neuroscience
    • Psychometrics

    Background:

    • Aphasia significantly impacts communication abilities.
    • Standardized assessments are crucial for evaluating aphasia severity.
    • The Porch Index of Communicative Ability (PICA) is a comprehensive tool for assessing aphasia.

    Purpose of the Study:

    • To develop and validate two short forms of the PICA.
    • To assess the psychometric properties of these short forms.
    • To determine if short forms can reliably measure communication in aphasic patients.

    Main Methods:

    • Data from 50 adult aphasic patients were analyzed.
    • Intercorrelations, reliability, means, and standard deviations were computed.
    • Short forms were compared against the full-length PICA.

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    Main Results:

    • The two short forms of the PICA were found to be equivalent.
    • Both short forms demonstrated high reliability and validity.
    • Scores from the short forms closely matched those of the full-length test.

    Conclusions:

    • The developed PICA short forms are reliable and valid alternatives.
    • These short forms offer a more efficient assessment for aphasic patients.
    • The short forms maintain the diagnostic integrity of the original PICA.