The potential of chemistry to improve one's learning capacity is discussed. (CK)

Reprints of an extended report based on an MA thesis from: M.L. Meltzer, Dept. of Psychology, George Washington University, Washington, D. C. 20006.

In an argument for orthogonal variables to explain intelligence, higher-order constructs, including "g" as a single thing in intelligence, are suggested to inevitably result from complex systems with interrelated parts. Biological reductionism and other arguments for the higher-order constructs as explanations of intellectual functioning…

Reanalysis of data of Crookes and others, who reported a positive correlation between extraversion and intellectual ability among 15- and 16-year-olds, showed that the relationship was nonlinear. Extraversion was found to be positively related to intelligence among the less intelligent and negatively among the more intelligent. (Author/MJL)

The four items on the scale that favored the Down syndrome Ss all involved figural content and visual-motor ability. The five items that favored the non-Down syndrome Ss generally involved semantic content, social intelligence, general comprehension, and/or judgment and reasoning. (Author/SB)

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)

Presents a transcript of a speech given by Cyril Burt in 1964 that establishes his access to research findings of others at this later point in his life and strengthens the argument that accusations against Burt of scientific fraud are not proven. (SLD)