This biography explores the many scientific interests and contributions of Francis Galton and outlines his psychological studies as a "detour" from his major works that lasted from 1877 to 1885. Galton's interest in heredity was a focus of the second half of his life, the first having concentrated on geography and exploration. (SLD)

Studies with 65 adults found two new visual processing tasks, visual change detection and visual movement detection, to be correlated with inspection time and the nonverbal scores from the Alice Helm 4 test of general intelligence. Results are discussed in terms of the correlation between inspection time and intelligence and the psychobiological…

Considers the contribution to information-processing accounts of human intelligence differences made by Arthur Jensen, commending his persistence in research and noting his reductionist orientation. Explores the question of correlated vectors studied by Jensen. (SLD)