Three studies were conducted to investigate reasons for the difficulties that children under 5 years of age experience with class inclusion tasks. The studies tested the claim that such tasks have a structural complexity that is beyond the children's processing ability. In experiment 1, class inclusion tasks were compared with other classification…

Three studies examined the domain of concepts about dinosaurs in order to assess how the domain might be structured in 4- through 7-year-old children's representations and to explore how the knowledge might be used. Findings indicated that significant differences exist in the way expert and novice children's representations are structured.…

This document is a review of research on the subject of innovation diffusion and planned change, organized according to a theoretical model. The organizational scheme used is derived from Bhola's Configurational, Linkages, Environmental, and Resources (CLER) model of planned change. Conventional reviews of research identify accomplishments in…

This is the third report on the use of a technical classification assessment center (TCAC) for evaluating general detail (GENDET) personnel in the Navy. The first two reports described the development of the TCAC and the validation of the TCAC against supervisors' ratings of job performance for a small exploratory sample. This report presents the…

The third of 16 booklets designed for use in an Open University course on special education in the United Kingdom, this guide introduces key issues in the course. The variety of handicapping conditions is examined, and age and sex factors in special education are considered. Effects of the environment and the special educational system are also…

A study undertaken to find a satisfactory system of classifying and organizing materials for college or university learning assistance centers discovered that little information had been published. Further investigation revealed that the two major systems used in libraries, the Library of Congress (LC) and Dewey Decimal Systems, were found to be…

A probabilistic approach is introduced to classify and diagnose erroneous rules of operation resulting from a variety of misconceptions ("bugs") in a procedural domain of arithmetic. The model is contrasted with the deterministic approach which has commonly been used in the field of artificial intelligence, and the advantage of treating the…

Pure research in school law is not possible, since the researcher must rely on inquiry that can be verified by experience and observation in the field. The studies produced in the past year tend to fall into the following classes: compliance, accountability, impact, cost-effectiveness, Supreme Court decisions, and the process by which minority law…

Two studies compared the effects of spontaneous and controlled imagery on reality monitoring decisions. Reality monitoring refers to the decision processes involved in discriminating perceptual memories from imaginal ones. In Experiment 1, 6-year-olds and adults were shown pictures and words and they responded to one of two questions: (1)…

The application of the "back-propagation" learning algorithm to the task of determining the right set of features corresponding to the words in an input sentence is described. Features that are specific to particular nouns and verbs, that indicate whether a nominal constituent is singular or plural, definite or indefinite, and that…

Two types of operating principles thought to play an important role in early lexical development are discussed. The principles are those concerned with: (1) assignment of reference or meaning to words; and (2) formation and evolution of categories. Discussion also addresses related issues, such as the developmentally important relationship between…

The contributions of Peter Stephen DuPonceau and John Pickering to American linguistics in the early nineteenth century are reviewed and discussed. Despite their probable status as amateurs in the study of American Indian languages and their very limited fieldwork, they made some significant contributions to the general field of language studies…

Two types of classification error are possible in competency tests: erroneous classification of an individual as a "master" of the subject (Type II error), and erroneous classification of a master as a "nonmaster" of the subject (Type I). If steps are taken to minimize Type II errors, an artificially high number of true masters…

This document reports on a workshop on coral species present in Thailand and on the status of coral taxonomy in central Indo-Pacific countries. The report discusses workshop aims, summarizes field and laboratory studies, provides a tentative checklist of hermatypic coral species from Thailand, assesses the status of coral taxonomy in participating…

Violent individuals are a heterogeneous group, making it unrealistic to think that a single psychological profile can classify them. Adolescents (N=72) at the Michigan Center for Forensic Psychiatry who had committed homicides were studied in an effort to distinguish clinically meaningful subtypes based on the motives and circumstance of their…