The contributions of specific scales of the Minnesota Multiphasic Personality Inventory-Adolescent (MMPI-A) to the classification of 180 adolescent substance abusers into groups characterized by aspects of behavioral control were studied. Seven scales made significant contributions to the classification of substance abusers into three groups, with…

Outlines Piaget's late ideas on categories and morphisms and the impact of these ideas on the comprehension of the inclusion relationship and the solution of arithmetic problems. Reports a study in which fourth through sixth graders were given arithmetic problems involving two known quantities associated with changes rather than states. Identified…

Offers a model for academic libraries that bases decisions on CD-ROM cataloging, circulating, and housing on three factors: type of data on a CD-ROM, who will use the data, and how they will use it. Four types of CD-ROMs are discussed: music, reference, data, and CD-ROMs that accompany other materials. (DGM)

Described is an activity which uses a 96-well reaction plate and soda straws to construct a model of the periodic table of the elements. The model illustrates the ionization energies of the various elements. Construction of the model and related concepts are discussed. (CW)

This comparison of two approaches to the development of computerized supports for decision making--expert systems and multivariate models--focuses on computerized systems that assist professionals with tasks related to diagnosis or classification in human services. Validation of both expert systems and statistical models is emphasized. (39…

Describes a study that empirically tested the citation behavior model of Moravcsik and Murugesan and examined the hypothesized relationships between three variables: reported citation type, reported utility level, and citation location. It is concluded that studies focusing on elements of information cited are needed to develop models reflecting…

Suggests a revised Montessori elementary biology sequence based on the new five-kingdom model. In keeping with Montessori principles that move the learner from the whole to the parts and from the simple to the complex, offers a proposed outline of instruction for the lower elementary (6-9) level and for the upper elementary (9-12) level. (TJQ)

A national study of 260 older adult education programs identified 5 models: (1) university-based; (2) Older Adult Service and Information Systems; (3) coalitions of religious congregations (Shepherd's Centers); (4) community colleges; and (5) senior centers. New roles for older learners are emerging in planning, teaching, governance, and community…

Proposes an instructional transaction class hierarchy and describes capability, knowledge, interactions, and associated transactions for three classes of transactions: (1) component transactions (identify, execute, and interpret); (2) abstraction transactions (judge, classify, decide, generalize, and transfer); and (3) association transactions…

A participatory model in evaluation is presented as an extension of the stakeholder-based model focusing on the increased participation of primary users. Twenty-six empirical studies that support an organizational learning justification of the model are reviewed and classified. Requirements for participatory evaluation are discussed. (SLD)

Reviews the scholarly work that uses content analysis to study political substance in magazines. Uses a modified version of Laswell's communication model to classify the current literature. Discusses problematic issues and offers possible solutions. (SR)

A lexicalist, or direct-mapping, view of the relationship between syntactic functions and surface syntactic relations and a link between semantic features and the assignment of arguments to syntactic functions are advocated. An experiment with 192 undergraduate students examines the issues as problems of language production. (SLD)

Classification accuracies of models for predicting later high school dropouts from data available in student records for grades 4 through 8 were examined for 503 dropouts and 282 persisters (nondropouts) in Florida. Separate prediction models for each grade level have practical importance; implications for dropout prediction are discussed. (SLD)

In this study, the Turkish students' understanding level of electric circuits consisting of two bulbs and one battery was investigated by using open-ended questions. Two-hundred fifty students, whose ages range from 11 to 22, were chosen from five different groups at primary, secondary and university levels in Trabzon in Turkey. In analyzing…

An eyetracking study testing D. L. Medin and M. M. Schaffer's (1978) 5-4 category structure was conducted. Over 30 studies have shown that the exemplar-based generalized context model (GCM) usually provides a better quantitative account of 5-4 learning data as compared with the prototype model. However, J. D. Smith and J. P. Minda (2000) argued…