The study explored the feasibility of deriving an educationally relevant occupational cluster structure based on Occupational Analysis Inventory (OAI) work dimensions. A hierarchical cluster analysis was applied to the factor score profiles of 814 occupations on 22 higher-order OAI work dimensions. From that analysis, 73 occupational clusters were…

The most significant finding is that classification according to complete similarity not only occurs much earlier than reported by Inhelder and Piaget, but also does not follow the developmental course reported by Inhelder and Piaget. (Author)

Second, fourth, and sixth graders were trained under conditions of Constrained and Cued recall on a list of randomly ordered nouns comprising 4 categories of things. (Authors)

The purpose of this paper is to suggest a technique of cluster analysis which is similar in aim to the Interactive Intercolumnar Correlation Analysis (IICA), though different in detail. Two methods are proposed for extracting a single bipolar factor (a "contrast compenent") directly from the initial similarities matrix. The advantages of this…

Considers classifications produced by application of single linkage, complete linkage, group average, and word clustering methods to Keen and Cranfield document test collections, and studies structure of hierarchies produced, extent to which methods distort input similarity matrices during classification generation, and retrieval effectiveness…

Describes method of automatic document classification in which documents classed as QA by Library of Congress classification system were clustered at six thresholds by keyword using single link technique. Automatically generated clusters were compared to Library of Congress subclasses, and partial classified hierarchy was formed. Twelve references…

This study was designed (1) to determine differences in classificatory skills of low socioeconomic status children under intervention and non-intervention conditions; (2) to determine differences in classification skills of bilingual, biliterate, and monolingual students; and (3) to study differences in classificatory skills as a function of age.…

The technical objective of this research was to develop a computer method for arranging a number of individual task patterns, representing job incumbents in a given occupational area, into groups or clusters. This advanced computerized technique for clustering work tasks produces homogeneous clusters of task patterns using an input of tasks…