Jaeggi and her colleagues claimed that they were able to improve fluid intelligence by training working memory. Subjects who trained their working memory on a dual n-back task for a period of time showed significant improvements in working memory span tasks and fluid intelligence tests such as the Raven's Progressive Matrices and the Bochumer…

Seven different short forms of the Wechsler Adult Intelligence Scale, Revised (WAIS-R) were compared in a mixed clinical sample of 306 adults to evaluate short form predictions of the full scale IQ. The seven-test short form of C. Ward (1990) was the best predictor across ranges of intellectual functioning, supporting its use when time is limited.…

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…