The present study investigated whether infants of mothers who were depressed postpartum would behave like infants of non-depressed mothers who simulated depression. A total of 24 mothers and their 3-month-old infants were videotaped during face-to-face interactions. All mothers were given the Beck Depression Inventory (BDI) and the State-Trait…

The nine articles in this collection were selected because they represent concerns central to computer science, emphasize topics of particular interest to mathematicians, and underscore the wide range of areas deeply and continually affected by computer science. The contents consist of: "Introduction" (S. V. Pollack), "The…

A latent trait model is described that is appropriate for use with tests that measure more than one dimension, and its application to both real and simulated test data is demonstrated. Procedures for estimating the parameters of the model are presented. The research objectives are to determine whether the two-parameter logistic model more…

This environmental teaching guide is designed to help Illinois teachers promote wise land-use planning at the secondary level. Program objectives, background information, activities and games for use in and outside of the classroom, a simulated problem-solving exercise, resource lists, and a test with answers are included. (JW)

This study aims to report the effort on teaching vector algebra using free open source software (FOSS). Recent studies showed that students have difficulties in learning basic physics concepts. Constructivist learning theories suggest the use of visual and hands-on activities in learning. We will report on the software used for this purpose. The…

This paper reports the current findings in literature on the impact of instructional technologies on teaching and learning environments pertaining higher education institutions. This study investigates the instructional design strategies in terms of (1) the scope of change in design strategies as a result of current school reform in the United…

This paper argues that the use of unrestricted natural language (UNL) interaction is essential in computer-assisted instruction aimed at teaching clinical decision making, and in interactive tests that emulate oral examinations. Knowledge about the scope and limitations of computerized UNL interaction gained during the development of the authoring…

Implan (Impact Analysis for Planning) is a microcomputer-based system for constructing regional economic accounts and input-output tables. It is currently maintained by the U.S. Forest Service at the Fort Collins Computer Center (Colorado) with assistance from the University of Minnesota. It provides software capabilities and a data base for…

The techniques used for teaching college economics have remained relatively unchanged over the past few decades. These techniques do not give the students an opportunity to apply, to develop, or to practice the economic theory they read about and hear in lectures. They tend to reinforce student assumptions about the subject's "givenness"…

In order to determine the effectiveness of multidimensional scaling (MDS) in recovering the dimensionality of a set of dichotomously-scored items, data were simulated in one, two, and three dimensions for a variety of correlations with the underlying latent trait. Similarity matrices were constructed from these data using three margin-sensitive…

In response to Congressional direction, a quantitative, analytical review (a meta-analysis) was completed of interactive videodisc instruction applied in Defense training and in the related settings of industrial training and higher education. Over all instructional settings and applications, interactive videodisc instruction was found to improve…

Embedded Training (ET), means the use of sophisticated simulators for training that are embedded within operational equipment, is an emerging trend in military education for pilots, weapon systems personnel, etc. Training devices and ET are used to provide opportunities for both practicing job skills and original learning, and their effectiveness…

This report focuses on the field testing of a recently developed self-administered microcomputer-based teaching simulation. Training-partner teacher educators from four Virginia institutions used the self-administered teaching simulation at their home sites. The educators used the simulation in a variety of ways: (1) to help education students…

Perceptions of supervisor bias can profoundly affect employee morale, yet the perceiver usually infers bias from limited information. In this study, 95 male and female undergraduate students participated in groups of 2 to 5 for course credit, playing the role of middle-level managers working in the personnel department of a fictitious company…

Interpersonal simulations may be used as a module in cultural awareness programs to provide realistic environments in which students, supervisors, and managers may practice communication skills that are effective in multicultural environments. To conduct and implement a cross-cultural simulation, facilitators should proceed through four stages:…