This paper presents empirical research results regarding the impact of Interaction Analysis (IA) graphs on groups of students collaborating through online blogging according to a "learning by design" scenario. The IA graphs used are of two categories; the first category summarizes quantitatively the activity of the users for each blog,…

The Interaction Sequence Graph records the occurrence of events according to Flanders' 10 categories of verbal interaction, the duration of each behavioral event, and the relationship of each event to those which precede and follow it. Data obtained by observing classroom teaching are analyzed and converted from a long series of numbers to a…

The concept of structure has become a central concern in the study of human perception, learning, memory, and recall. The purpose of this paper is to present a method for analyzing structure--the theory of directed graphs--and to review research on teaching that has employed this method to investigate input structure, memory structure, or both. To…

Two tools which can be used to evaluate quantitatively aspects of air pollution control devices are described. One is a chart measuring the effectiveness of incinerator afterburners and vapor incinerators; the other, a psychrometric graph for the humidifying and cooling of gases. Research needs are also specified. (BL)

Presents the first stage in a research effort developing a detailed computational model of working memory. The central feature of the model is counterintuitive. It is assumed that there is a primacy gradient of activation across successive list items. A second stage of the model is influenced by the combined effects of the primacy gradient and…

Research supported in part by grant MH-07346 from the National Institute of Mental Health, and a grant from the Illinois State Department of Mental Health.

Multifaceted Rasch analysis was used to determine whether bias was evident in the way a group of raters graded two different versions of an oral interaction test, undertaken by the same candidates. Results indicate that certain raters consistently rated the tape version of the test more harshly while others rated the live one more harshly. (10…

Reports five experiments; the first two assessed the effect of the selectional restriction requirements of verbs and the animacy of nouns on sentence comprehension, the third determined the cause of the interaction found in the first set of studies, and the fourth and fifth were self-paced reading experiments. (52 references) (Author/CK)

The main purpose of the research reported in this document was to discover whether controlled experiments can be conducted on the relations between people and the complex computing systems which they use. Three increasingly complex experiments were designed to test the effect of varying delays of computer response on the number of commands issues…

A system for evaluating and monitoring child development projects, with possible computerization capabilities, was developed for the State of Pennsylvania in connection with 26 child development projects funded by the Appalachian Regional Commission. The Ecological Monitoring Information System (EMIS), provides a series of ecological measurement…