Proposes Vocabulary and Block Design as a two-subtest short form of the Wechsler Adult Intelligence Scale-Revised; the addition of Arithmetic and Picture Arrangement provides a four-subtest short form of the scale. Presents tables giving Full Scale IQs for each of nine age groups for both short forms. (Author)

Results of a battery of psychometric and chronometric tests administered to 90 adults show that inspection time (IT) and decision time measured different processes, and that Wechsler performance IQ does not measure fluid ability. Findings suggest that IT does not measure fluid ability, but whether information processing speed is common to all…

Created an adaptation of the Digit Symbol subtest of the Wechsler Adult Intelligence Scale, the Digit Symbol Rotation test, and evaluated its "g" loading with 54 adults. Results suggest the Digit Symbol Rotation test has more factorial validity than Digit Symbol, but remains equally easy to administer and score. (SLD)

Explored the relationship of both simple and four-choice reaction time to scores for the Alice Heim 4 (AH4) test to assess whether correlations previously reported adequately represented the strength of the relationship and to test for departures from linearity. Findings for 900 adolescents and adult show the correlation to be a good summary for…

Administered a battery of 17 working memory tasks and a test for the Berlin Intelligence Structure Model (1982) to 128 young adults in Germany. General working memory capacity was highly related to general intelligence, and findings also suggest that specific working memory resources, as opposed to a general capacity, are the limiting factors for…

Administered Raven's Standard Progressive Matrices to 342 young adult engineering students in South Africa (198 Africans; 86 Whites). Data confirm the magnitude of the African-White IQ gap and that the differences on various items are positively correlated with the "g" loading for those items. (SLD)

Data for the Raven's Advanced Progressive Matrices test from 3 large studies for a total of 818 adults show that although older adults perform like low-ability young adults when the measure of interest is the number correct, there does not seem to be an age-related difference in the type of reasoning used. (SLD)

Whether variation in the number of cytosine-guanine-guanine (CGG) repeats on the FMR-1 gene relates to IQ in the general population was studied for 35 low-IQ, 19 middle-IQ, and 49 high-IQ children. IQ groups did not differ significantly in number of CGG repeats. (SLD)

Articles responds to some issues raised in "The Bell Curve: Intelligence and Class Structure in American Life," such as the nature of intelligence, its measurement, the importance of personal decisions in determining life outcomes, and the modifiability of intelligence in infants and young children. (Author/JDM)

Examines the factor structure of the Wechsler Adult Intelligence Scale-Revised across nine age groups using several methods of factor analysis, including reliable component analysis (RCA). Factor structure is discussed, and the usefulness of the RCA method is demonstrated. (SLD)

Studied the role of response fluency on results of the Raven's Advanced Progressive Matrices (APM) Test by comparing scores on a test of generation speed (speed of generating rules that govern the items) with APM test performance for 127 Belgian undergraduates. Discusses the importance of generation speed in intelligence. (SLD)

Studied the relation of intelligence quotient (IQ) to brain size on 103 right-handed and left-handed male and female college students in Turkey. Measured cerebral areas and found an overall correlation between brain area and IQ. Discusses some sex differences. (SLD)

Examined whether the Worst Performance rule (G. Larson and D. Alderton, 1990) could be applied to a strategic memory task in which 81 children in grades 2 through 4 were asked to remember different lists of categorizable words. Results show strong support for the rule, with worst performance predicting more unique variance in IQ than any other…

It has been suggested that computer simulations may be used for intelligence assessment. This study investigates what relationships exist between intelligence and computer-simulated tasks that mimic real-world problem-solving behavior, and discusses design requirements that simulations have to meet in order to be suitable for intelligence…

The Test of Nonverbal Intelligence-3rd Edition (TONI-3) and the Analogic Reasoning (AR) subscale of the Universal Nonverbal Intelligence Test (UNIT) were administered to 35 individuals with autism to determine whether real-world-knowledge deficits affected intelligence scores. The 2 tests are similar in format; however, the TONI-3 includes only…