Nonspecialists are often surprised by the issues studied and the perspectives assumed by basic scientific researchers. Nowhere has the surprise traditionally been greater than in the field of psychology. College students anticipate that their psychology courses will illuminate their personal problems and their friends' per sonalities; they are nonplussed to discover that the perception of geometric forms and the running ofT-mazes dominates the textbooks. The situation is comparable in the domain of linguistics. Nonprofessional observers assume that linguists study exotic languages, that when...