Prevalence rates of cognitive impairment in persons 75 to 85 years of age have been documented in the range of 10-15%, and exceeding 20% after age 85. A recent study has demonstrated even higher prevalence rates: 18.7% between the ages of 75-84 and 47% in persons over 85 years of age. Screening for dementia in persons 75 years of age and older…

The Raven Advanced Progressive Matrices Test (APM) is a well-known measure of higher order general mental ability. The time to administer the test, 40 to 60 minutes, is sometimes regarded as a drawback. To meet efficiency needs, the APM can be administered as a 30-or 40-minute timed test, or one of two developed short versions could be used. In…

Two groups of 5-year-old children were evaluated using several measures of language and concept ability: Stanford-Binet, Form L-M; Preschool Inventory (PSI); Boehm Test of Basic Concepts; Peabody Picture Vocabulary Test, Form B (PPVT); and the Auditory-Vocal Automatic, Motor Encoding, Auditory-Vocal Association, and Vocal Encoding subtests of the…

Black students from two cities and Mexican-American students, both male and female, showed small but consistent tendencies to perform better, relative to White groups, on three nontraditional measures: tests of inductive reasoning, spatial scanning, and associative memory. These measures showed somewhat less discrepancy between the groups than did…

Results of a subtest of the Project Access battery, comparing the influence of race, sex and city on inductive reasoning items, are presented. The participating Junior High students represented three racial groups, Black, White, and Mexican Americans, from three cities, Los Angeles, Memphis, and Washington, D. C. The test, entitled Letter Groups,…