Although a verbal intelligence test is directly a measure of what people know, it is indirectly a way of identifying people who can code and manipulate verbal stimuli rapidly in situations in which knowledge per se is not a major factor. (Author/BJG)

By reviewing studies relating memory to verbal comprehension and describing a sentence verification task study, the author examines the relationship, in normal subjects, between information processing capacities and intelligence. He proposes three sources of individual differences in information processing: basic functions, choice of problem…