The study of measurement models in psychometrics by means of dimensionality reduction techniques such as Principal Components Analysis (PCA) is a very common practice. In recent times, an upsurge of interest in the study of artificial neural networks apt to computing a principal component extraction has been observed. Despite this interest, the…

This study investigated the potential accident-proneness of adolescents with attention deficit hyperactivity disorder (ADHD) in a hazardous road-crossing environment. An immersive virtual reality traffic gap-choice task was used to determine whether ADHD adolescents show more unsafe road-crossing behavior than controls. Participants (ages 13 to…

A need exists for a controlled examination of the variables that may affect the results of a behavior-based safety program. These include the rate of risky behaviors and how they relate to a contingent bonus payout (Experiment 1), and the relative amounts of honesty in injury reporting and rule following (Experiment 2). A simple task consisting of…

The motion of a magnet through a coil is analysed through a model of magnetic monopoles. The magnetic flux of a monopole passing through a loop is explained and also its rate of change. By a superposition of voltages produced by the monopoles on the coils the shape of the voltage versus time graph is explained. Also examined is the interaction of…

This study examined the effects of manipulating the modality (text-only, voice-only, voice+text) of a tutorial and restriction (restricted vs. unrestricted) of a simulation's interface on retention and transfer of tutorial content. The tutorial prepared novice students to use Packet Tracer, a simulation developed by Cisco that teaches network…

Researchers in information systems and technology-mediated learning have begun to examine how virtual world environments can be used in learning and how they enable learning processes and enhance learning outcomes. This research examined learning processes in a virtual world learning environment (VWLE). A research model of VWLE effects on learning…

Drawing on game-design principles and an underlying situated theoretical perspective, we developed and researched a 3D game-based curriculum designed to teach water quality concepts. We compared undergraduate student dyads assigned randomly to four different instructional design conditions where the content had increasingly level of…

Innovation Education (IE) is a new subject area in Icelandic schools. The aim of the subject is to train students to identify the needs and problems in their environment and to develop solutions: a process of ideation. This activity has been classroom based but now a Virtual Reality Learning Environment technology (VRLE) has been designed to…

People use external knowledge representations (EKRs) to identify, depict, transform, store, share, and archive information. Learning how to work with EKRs is central to becoming proficient in virtually every discipline. As such, EKRs play central roles in curriculum, instruction, and assessment. Five key roles of EKRs in educational assessment are…

This book is an incredibly valuable resource to anyone involved in building a master schedule. The author provides a comprehensive description of the processes involved and makes the reader aware of what needs to be considered and done throughout the process. One of the most time-consuming tasks for school leaders is creating a master schedule…

Six teenagers with Autistic Spectrum Disorders (ASDs) experienced a Virtual Environment (VE) of a cafe. They also watched three sets of videos of real cafe and buses and judged where they would sit and explained why. Half of the participants received their VE experience between the first and second sets of videos, and half experienced it between…

The process of developing concepts of time continues from age 5 to 11 years (Zakay, 1998). This study sought the representation mode in which children could best express time concepts, especially the proper arrangement of events in a logical and temporal order. Usually, temporal order is examined and taught by 2D (2-dimensional) pictorial scripts.…

P. Bloom's (1990) data on subject omission are often taken as strong support for the view that child language can be explained in terms of full competence coupled with processing limitations in production. This paper examines whether processing limitations in learning may provide a more parsimonious explanation of the data without the need to…

The central messages of this paper are that (a) unequal variances may be more prevalent than typically imagined in educational and policy research, and (b) when considering tests of equal variances one needs to be cautious about what is being referred to as "Levene's test" because Levene's test is actually a family of techniques. Depending on…

High school teacher Cara M. Arver walks teachers through her experience of setting up a virtual world to augment students' reading of "Lord of the Flies." Students interact as additional characters, discuss and solve problems based on the circumstances of the story, and complete classroom assignments within a virtual environment.