The hypothesis is the device scientists use to translate questions, theories, or proposed explanations into a form amenable to empirical research. This edition of W. W. Charter's treatise on clear, conceptual definitions and precise operational hypotheses, which was originally developed to assist students in educational policy and management…

This paper focuses on three aspects related to the conceptualization and application of canonical correlation analysis as a dominant statistical model: (1) partial canonical correlation analysis and its application in statistical testing; (2) the relation between canonical correlation analysis and discriminant analysis; and (3) the relation…

A study of S. R. Ranganathan's theory of reference service is undertaken by using an historical methodology. It was evident from the literature review that Ranganathan had established that reference service was the most important work and served as the hub of all library practices. There were six factors that were repeatedly considered by…

Childhood schizophrenia is a rare but serious disorder with complex symptoms that affect children and their families. Childhood schizophrenia was once the term applied for all childhood psychoses, including autism and mood disorders, but more recently researchers have distinguished childhood schizophrenia from other disorders. There are differing…

The National Center for Education Statistics (NCES) new classification system for location of public schools and the NCES databases will provide new opportunities for rural education researchers. NCES developed a coding system called "Johnson codes" based on zip codes and Census definitions both of rural and nonrural places and of…

This thesaurus is a tool for indexing and retrieving documents and data in the field of education in an international context. Introductory materials include a description of the thesaurus and discussions of its relationship with other thesauri, the thesaurus as an international instrument, its coverage and structure, fields, facets, descriptors…

This paper reviews 19th and 20th century English-language literature dealing with the user friendliness of library catalogs and cataloging. Sections cover literature on: (1) the need for catalogs and the possibility of substituting subject bibliographies for the subject catalog; (2) user needs and the dichotomy between designing catalogs based on…

This list of program types and keywords (with codes) was prepared for program officers at the National Endowment for the Humanities, the National Institute of Education, and the National Science Foundation to use when preparing program announcements and requests for proposals. Staff persons responsible for screening such documents at colleges and…

To examine the number of subjective age categories in the post-high school portion of the American lifecycle, adult respondents sorted cards describing people in terms of major life events and classified them according to age. A nonlinear decrease in the number of age distinctions occurred in the late portion of middle age (46-65 years). (Author)

A class of closely related hierarchical grouping methods are discussed and a procedure which implements them in an integrated fashion is presented. These methods avoid some theoretical anomalies inherent in clustering and provide a framework for viewing partitioning and nonpartitioning grouping. Significant relationships between these methods and…

This paper contends that neither taxonomic nor generative phonology is a satisfactory basis for contrastive analysis or for teaching Russian pronunciation. A third theory, known as natural phonology, is more useful. (CHK)

Describes a game in which elementary school students learn the importance of plants and some techniques of plant identification. (LS)

Development of the ability to classify auditory patterns was studied at grades 2, 6, 10, and 12 and at adult age levels. Both accuracy and feature use in classification were consistent across age; the age changes that did occur appeared to be due to differences in perception rather than process. (JMB)

Describes chemical labeling standards that utilize explanatory symbols to identify hazardous substances. (MLH)

Describes a simulation exercise for the teaching of taxonomy which involves studying drawings of members of an imaginary phylum. The use of this material can lead to an understanding of relationships, classification, taxonomic strategies, polymorphism, variation, and evolution. (Author/GS)