Research has consistently shown that inquiry-based learning can be more effective than other, more expository instructional approaches as long as students are supported adequately. But what type of guidance is adequate, and for whom? These questions are difficult to answer as most previous research has only focused on one type of guidance and one…

An information retrieval system was developed using technical word occurrences as a basis for classification. A set of words, designated a vocabulary, was selected from the middle range of frequency listing of words occurring in an experimental sample of 94 documents. The selection produced 115 non-function words with technical definition that did…

Discusses ways to improve quality of retrieval systems that depend on use of truncated words or quasi-word stems as indexing vocabulary. Problems of generalizability and stability of discriminant function analysis for selecting good topical terms in database drawn from abstracts of Harris Survey press releases are addressed. References are cited.…