title: Validity of brief intelligence tests for patients with Alzheimer's disease.
abstract: The validity of two kinds of brief intelligence tests for patients with Alzheimer's disease (AD) was investigated. In study 1, five short forms of the Japanese Wechsler Adult Intelligence Scale-Revised (JWAIS-R) were administered to 102 AD patients. The results showed that the intra-class correlation coefficients (ICC) between IQ estimated with the short forms and those obtained by administration of the full JWAIS-R were satisfactory, ranging from 0.82 to 0.98, and that the abbreviated forms took a shorter time to execute. In study 2, the Raven's Coloured Progressive Matrices (RCPM) and the Mini-Mental State Examination (MMSE) were administered to 67 AD patients. The ICC between the IQ estimated with these tests and the full-scale IQ of the JWAIS-R were both acceptable at 0.57, and each test could be carried out in a very short time. It was concluded that these brief tests, particularly the WAIS-R short forms, are highly practical for quick measurement of intelligence in AD patients, although they have their respective limitations.
authors.affiliation: Department of Audiology and Logopedics, Japan College of Rehabilitation and Welfare Professionals, Nagoya, Japan. hikaru@fhw.oka-pu.ac.jp
authors.forename: H
authors.initials: H
authors.lastname: Nakamura
authors.forename: M
authors.initials: M
authors.lastname: Nakanishi
authors.forename: T A
authors.initials: TA
authors.lastname: Furukawa
authors.forename: T
authors.initials: T
authors.lastname: Hamanaka
authors.forename: S
authors.initials: S
authors.lastname: Tokudome
mesh_terms: D000368:Aged; D000544:Alzheimer Disease; D003072:Cognition Disorders / Q000175:diagnosis*; D005260:Female; D006801:Humans; D007360:Intelligence; D008297:Male; D014888:Wechsler Scales