Advances several explanations of why loyalty may not bring expected benefits; tests these explanations by examining responses to dissatisfaction in the everyday lives of partners in ongoing dating relationships. A diary study of dating partners revealed that partners disagreed on the occurrence of loyalty. Other findings are discussed. (RJM)

A method is presented for extending full versus restricted model testing to predictive discriminant analysis when the criterion of model accuracy is classification hit rate. An example is presented involving the dropout or school persistence of 76 5th graders, and a computer program for the analysis is introduced. (SLD)

Two studies involving approximately 3,500 college students were conducted to establish and validate a self-report method of identifying nonclinical young adults with significant borderline personality disorder features and to evaluate clinical correlates of this classification across relevant areas of functioning. Results support the validity of…

A study of the ability of different models--including the classification techniques of discriminant analysis, logistic regression, and neural networks--to predict the academic success of master's degree students in business administration suggests that prediction is difficult, but that classification and nonparametric techniques may be…

Provides a typology of power strategies used by young children, based on observations of early childhood classrooms. Distinguishes between violent and nonviolent strategies; within nonviolent strategies, between physical and discursive strategies; within discursive strategies, between the use of rules and other strategies; and within the use of…

Presents a taxonomy describing various uses of artificial intelligence techniques in automated instructional development systems. Instructional systems development is discussed in relation to the design of computer-based instructional courseware; two systems being developed at the Air Force Armstrong Laboratory are reviewed; and further research…

Suggests that teachers should consider which questions to ask as a part of instructional preparation. To ensure that diversity and critical thinking are involved, a teacher should use a taxonomy for a template when writing questions. Presents and discusses Bloom's taxonomy, Gagne's levels of learning, and a taxonomy for general science process…

A technique is presented to transform incomplete categorical data into complete data by imputing appropriate scores into missing cells. A solution of the optimization problem is suggested, and relevant psychometric theory is discussed. The average correlation should be at least 0.50 before the method becomes practical. (SLD)

A study analyzed data from four national surveys of the American professoriate conducted between 1969 and 1988. To assess whether groups of institutions might be accumulating advantage relative to others, research activities were compared across five Carnegie institution types. An overall strengthening of research emphasis and other changes…

Describes the differences between and within American secondary schools. Types of schools are discussed, and institutional analyses are recommended for creating ethnological typologies. School culture is suggested as a basis for typology. Three comprehensive and supposedly similar public high schools are examined, and their significant cultural…

Describes hypertext and discusses the need for classification schemes in hypertext knowledge bases. The process for finding and using information in libraries is considered; the use of classification in libraries is discussed, including the development of library catalogs; an example of hypertext with a classification structure is described; and…

The degree of agreement between two raters rating several objects for a single characteristic can be expressed through an association coefficient, such as the Pearson product-moment correlation. How to select an appropriate association coefficient, and the desirable properties and uses of a class of such coefficients--the Euclidean…

Examines historical and current difficulties in information retrieval, including the tendency of technology, because of the problems of scale and distribution, to make information invisible to users. Attempts to organize networked resources are described, and serendipity is proposed as a model for future retrieval. (two references) (MES)

Describes a project that examined textual information available on the Internet and potential means of providing access to this information. Highlights include an overview of Internet resources, a profile of a document sample, description of FTP (File Transfer Protocol) sites, and an automated method of categorizing files. (MES)

Describes the study of sandy beach zonations as a seashore activity for either high school or lower-level college courses in biology, ecology, or marine biology. Students first draw a profile of a beach scene and then collect specimens from the zones of the shore. In a laboratory, students identify their specimens and relate them to the beach…