Data suggest an ability to use concrete-operational reasoning is not required for doing complex arithmetic, even though it may be necessary for learning these arithmetic skills. (Authors)

Report of an interview with the inventor of the neural efficiency analyzer, reputed to be the first successful culture-free measure of native intelligence. (Author)

It was concluded that while retinoblastoma per se is not associated with intellectual superiority or inferiority, retinoblastoma associated with blindness may result in selective cognitive superiority. (Authors)

An experiment in which high school sophomores of varying intelligence read one-paragraph persuasive messages with varying levels of factual evidence. (Author/RD)

Analysis of the mental factors of seventh grade students indicates that numerical facility and perceptual speed are a single factor at this age level and that no purely verbal factor exists. Seven clearly differentiated factors are found for males and five for females. (Author/WY)

Summarizes Arthur Jensen's theories on IQ, heritability, and Black intelligence and reviews some responses to Jensen. (JLF)

Performance on the Wechsler Intelligence Scale for Children-Revised was compared for reflective and impulsive children, aged 8-11. Reflective children scored higher on the attention-concentration and visual organization subtests. There were no significant differences in verbal comprehension. (Author/GDC)

Results showed gross differences between low and average IQ Ss on a number of variables. The regression results, however, indicated that the determinants of career attainment had similar effects among low and average IQ Ss, and that status attainment theory applied equally well to the two groups. (Author/DLS)

Results indicated that retarded Ss, relative to normal Ss of all ages, responded particularly slowly to static property statements when objects were animate, and to intrinsic-action properties when objects were inanimate. (Author/DLS)

This study investigated the relationship between giftedness and conservation of weight based on Piaget's theory of intelligence. A total of 56 gifted and 72 nongifted children (ages 114-150 months) were tested on a series of tasks designed to measure conservation of weight. (MS)

In the investigation described here, the relationship between individual differences of intelligence, as measured by the Wechsler Adult Intelligence Scale (WAIS; Wechsler, 1958), and inspection time has been examined. (Author)