Besides the ubiquitous Pearson product-moment r, there are a number of other measures of relationship that are attenuated by errors of measurement and for which the relationship between true measures can be estimated. Among these are the correlation ratio (eta squared), Kelley's unbiased correlation ratio (epsilon squared), Hays' omega squared,…

To fill a need for defining and describing 15 occupational clusters identified by the U.S. Office of Education for a comprehensive career education program in a Texas county, this federally funded analysis presents separately for each of the 15 clusters a rationale, methodology, subgroupings into job families and occupational listings, and a chart…

Investigated the development and fragmentation of categories over chronological and mental age without the requisite of free recall. Kindergarten, fourth grade, ninth grade and retarded students labeled and categorized chromatic slides of picturable objects. (GO)

Describes study that compared and judged the quality of subject indexing in online bibliographic databases. Documents from medical behavioral science literature are used with terms drawn from MEDLINE, PsychINFO, BIOSIS, and Excerpta Medica. Comparative statistics are presented on how each database links related documents and discriminates among…

Discusses the issue of centralization or decentralization of academic library collections, and describes a statistical analysis of book circulation at the University of Southwestern Louisiana that yielded subject area clusters as a compromise solution to the problem. Applications of the cluster model for all types of library catalogs are…

Defines relationship between user profile and user query in terms of relationship between clusters of documents retrieved by each, and explores the expression of cluster similarity and cluster overlap as linear functions of similarity existing between original pairs of profiles and queries, given the desired retrieval threshold. (23 references)…

Study compared the relative power of the Taxonomic, Semantic Differential, and Sense Impression categories in the recall behavior of children. (Authors)

Baltimore, Maryland's parochial school system includes 27 schools serving 48 parishes in a network of eight school clusters organized around the primary-middle school concept. (DS)

Findings provide information about developmental differences in sorting and recall, as well as evidence that organizational training may influence recall performance. (Authors)

Both acquisition and retention were better when the hierarchy was learned graphically rather than as a list of associations, although the effect was greater on acquisition than on retention. (Authors)

Descriptive method proved more effective than the inquiry method in presenting concept clusters. (MB)