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  • Title: Development and cross-validation of a short form impairment index.
    Author: Horton AM, Anilane J, Slone DG, Shapiro S.
    Journal: Arch Clin Neuropsychol; 1986; 1(3):243-6. PubMed ID: 14591152.
    Abstract:
    The Brain Age Quotient (BAQ) is an actuarial combination of four Halstead-Reitan neuropsychology test battery scores (Category errors. Tactual Performance Test- Total Time, Tactual Performance Test-Location Score and Trails-B Score) and two performance subtests for the Wechsler Adult Intelligence Scale (Block Design and Digit Symbol). The present studies investigated the value of a short form of the BAQ, the Short Form Impairment Index (SFII), composed of the Trails-B Score and two subtests of the Wechsler and also twice cross-validated the short form. Statistical analysis yielded a Pearson r =.90, for both the initial study and each of the cross-validations. Further research and clinical considerations are discussed.
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