The results of three studies clearly indicate that ongoing behavior is organized into perceptual units, and that these units may be validly identified by the Newtson (1973) unit marking procedure. (Author)

This research tests the hypothesis that differences in academic performance between children who have never moved and children who have moved once or several times before to a great extent stem from the fact that they perform differently prior to mobility. (Author/RK)

Compares and discusses the findings of the nationwide reading surveys done by the National Assessment of Educational Progress in 1971 and 1975. (HOD) Aspect of National Assessment (NAEP) dealt with in this document: Results (Change).

Discusses an equation that describes the variation with temperature of acid dissociation constants. (MLH)

Describes two investigative labs that use live plants to illustrate important biological principles, include quantitative analysis, and require very little equipment. Each lab is adaptable to a variety of class sizes, course contents, and student backgrounds. Topics include the evolution of flower size in Mimulus and pollination of Brassicas. (DDR)

An analysis of price and scientific value of chemistry journals concluded that scientific value does not play a role in the pricing of scientific journals and that consequently little relationship exists between scientific value and the prices charged libraries for journals. Describes a software package, Serials Evaluator, being developed at…

Students in grades three to four can collect, analyze, and represent data in order to determine which piece of playground equipment appears most popular. Students in grades five to six can investigate the geometry of playground structures using measurement and scale models. Lesson plans and reproducible worksheets are included. (CMS)

Describes geographic information systems and the assembly of data for analysis for the Indianapolis-Marion County Public Library (Indiana). Presents examples of possible analyses: distribution of library patrons; distances patrons travel to use libraries; branch library services and characteristics of populations served; numbers of patrons served…

A didactic example is presented of the application of new developments in structural equation modeling that allow for the modeling of multilevel data. The method, a synthesis of methods developed by B. Muthen, is applied to the problem of validating indicators of science education quality in the United States. (SLD)

Points out that data analysis and representation are political acts in the research process. Argues that research methods should be demystified and made available for public criticism. Calls for the involvement of research participants in the development of research projects and for explorations of postmodern conceptions of subjectivity, knowledge…

Describes work to develop a computer game to teach scientific reasoning. A framework for intelligent tutoring games is presented that includes developing a model of scientific knowledge, developing a model of the phenomenon, developing hypotheses, collecting data, analyzing data, and drawing conclusions. Student attitudes are also discussed. (LRW)

The SEPATH structural equation modeling (SEM) software is a new module in the latest release of STATISTICA (version 5.0) for Windows 3.1 and Windows 95. SEPATH is a program that provides a comprehensive set of functions for the SEM modeling. The interface and the Monte Carlo capability are strong features. (SLD)

BMDP/Diamond for Windows was developed as a stand-alone software package for initial data exploration and screening. The program uses advanced visualization techniques to allow one to examine the data from different perspectives, or to manipulate graphics to gain greater insight. Data can be checked quickly for a variety of characteristics. (SLD)

Presents ways in which thematization can be used to control hortatory rhetoric, including varying the complexity of thematic structure and varying the amount of discourse participant themes. The article examines how different choices of thematic progression as text organizers can produce different effects and finds correlations with the…