Reviews different structures and techniques of knowledge representation: structure of database records and files, data structures in computer programming, syntatic and semantic structure of natural language, knowledge representation in artificial intelligence, and models of human memory. A prototype expert system that makes use of some of these…

This review of findings in the field of readability research discusses the differences in meaning between readability and legibility, examines the origins and developments of readability formulas for children's and adult materials, and describes several of the best-known formulas for English-language materials. (46 references) (Author/LRW)

Writing research has long sought to identify the internal features of written discourse that help to explain qualitative differences among student texts. Reflecting the theories of the Prague School linguists, this study used a topical structure analysis to distinguish between the sentences and T-units of 48 college freshman essays evaluated as…

A study of eight adult chronic aphasic patients' comprehension of sentences and pictures in which comparisons of time and space were crucial was designed to assess A. R. Luria's approach to designing comprehension test tasks. The investigation required patients, with lesions of varying size and location, to determine whether a sentence expressing…

Recent literature on individual differences in verbal ability indicates that people demonstrating high verbal comprehension are quicker and more accurate in identifying lexical items, as well as more rapid in parsing sentences. They are not, however, more sensitive to the general gist of a passage, and thus do not respond to priming from context…