Does excessive exposure to violent video games cause violent behavior? Does increased gun availability cause more crime or less? Causal claims permeate everyday life and are constantly the subject of "studies" reported in the newspaper. The material in Causal and Statistical Reasoning examines the nature of causal claims and the statistical sorts of evidence used to support them. The material is contained in: approximately 20 content modules, a repository of over 100 short case studies, and a "C
Empirical Research Methods
Regression analysis is an enormously popular and powerful tool, used ubiquitously in the social and behavioral sciences. Most courses on the subject immediately dive into the mathematical aspects of the subject and illustrate the technique on problems that are already highly structured. As a result, most students come away with little idea of the wide range of problems to which regression analysis can be applied and how to represent those problems in a way that cleverly utilizes readily availabl
Modèles de soutien à l'élaboration de scénarios
Les enseignants participant aux nombreux dispositifs d'enseignement à distance sont confrontés à la difficulté d'élaborer leurs activités d'apprentissage, sur support numérique, sous forme de scénarios pédagogiques. Dans cet article, nous proposons un dispositif de soutien à la tâche de conception de scénarios pédagogiques « analyse de documents » basé sur différents niveaux de modèles.,Preprint
Phyllis Bennis: In Conversation with Fawaz Gerges [Audio]
Speaker(s): Phyllis Bennis | While US policy towards Israel remains unchanged, the long-standing assumption that most Americans – even most Jewish Americans – agree with that policy no longer holds. In the media, in popular culture, in universities and particularly within the Jewish community, there are signs of major shifts. In conversation with MEC Director Professor Fawaz Gerges, writer, analyst and activist Phyllis Bennis discusses these changes with reflection on her own political evolu
The Future of Banking in a Global Economy
Today's financial and economic wreckage will provide the foundations for a system on which a stronger future will be built. This will only happen with a real cooperation and collaboration that is hard to envisage amidst the growing clamour for protectionism, speculation over the possible nationalisation of the banking system, and questions over the right of those at the centre of the industry to be part of the solution. In his lecture, Vikram Pandit will outline his views on the role of banking
Rockets: Educators Guide
Few classroom topics generate as much excitement as rockets. The scientific, technological, engineering and mathematical foundations of rocketry provide exciting classroom opportunities for authentic hands-on, minds-on experimentation. The activities and lesson plans contained in this educator guide emphasize hands-on science, prediction, data collection and interpretation, teamwork, and problem solving. The guide also contains background information about the history of rockets and basic rocket
Ain't No Sunshine
The University of Richmond Jazz Ensemble closed out their tour of Greece in Athens at the Bacaro Jazz Club on March 12, 2011. Featured in this song are seniors Matt Jordan on trumpet and Alex Kelly on vocals.
Brockmeier, L., Leech, D., Pate, J., & Gibson, N. (April 2011). Principals' Views about the Impact o
National Council of Professors of Educational Administration
While high stakes testing continues as the centerpiece of education reform efforts to improve education, the impact of high stakes testing on principals needs further exploration. The Principal’s […]
1.5 'Radiative forcing' as an agent of climate change Since its first major report in 1990, the IPCC has used the concept of 'radiative forcing' as a simple measure of the importance of a potential climate change mechanism. The basic idea is straightforward. Any factor that disturbs the radiation balance at the top of the atmosphere has the potential to 'force' the global climate to change: it will either warm up or cool down until a balance is restored. The perturbation to the energy balance of the whole Earth-atmosphere system is called
Since its first major report in 1990, the IPCC has used the concept of 'radiative forcing' as a simple measure of the importance of a potential climate change mechanism. The basic idea is straightforward. Any factor that disturbs the radiation balance at the top of the atmosphere has the potential to 'force' the global climate to change: it will either warm up or cool down until a balance is restored. The perturbation to the energy balance of the whole Earth-atmosphere system is called
The Effect of Active Learning Exercises on Academic Performance and Nonintellectual Learning Factors
The current study examined the effect of an active learning-based teaching method on nonintellectual learning dispositions in students enrolled in general psychology. Expected outcomes included improvement in student nonintellectual learning factors, as well as improvement in student academic performance. Two graduate student instructors and four courses of general psychology were recruited for participation. SAT scores, course grades, student ratings of teachers, and measures of nonintellectual
Lichen Determination Keys
Published by the Botanic Garden and Botanical Museum (BGBM), Berlin-Dahlem, this Web site serves as on online guide to lichen identification. Users can choose from articulated identification keys for a large number of taxa, or follow links to keys organized by geographical region. There is also an interactive lichen identification database. The Web site has been recently updated to include a key for the genus Stereocaulon in Tropical America. Users should note that the keys listed are created by
NASA Tech Briefs: Engineering Solutions for Design and Manufacturing
NASA Tech Briefs is a monthly magazine that summarizes technologies developed through NASA research and their commercial applications. Free of charge, the magazine's Web site has much of the information that is published in print, while also offering an easy-to-navigate interface. The Tech Brief Library is an archive that dates back four years in twelve different categories, ranging from mechanics to software. The Technical Support Packages have even more detailed information in downloadable Ado
This Java applet is designed to allow students to practice visualizing and calculating area and perimeter for figures formed by adjacent squares on a grid. After the student selects a size using a slide bar, the Java applet generates a random closed figure. The student enters values for the figure's area and perimeter, which are checked automatically. The applet limits figures to rectangles and generates two column comparisons of areas and perimeters for multiple figures. From the activity page,
How can city buses be made to run more quietly and produce less pollution? This article, part of a series about the future of energy, discusses the use of hydrogen-powered buses in Chicago and Vancouver. Students read about plans to place hydrogen-powered buses in six of the world's smoggiest cities and the potential for reduced air pollution. Copyright 2005 Eisenhower National Clearinghouse
My Mechanical Ear Can Hear!
Students are introduced to various types of hearing impairments and the types of biomedical devices that engineers have designed to aid people with this physical disability.
The Mummified Troll: Devising a Protection Plan
Students are introduced to the parameters of an engineering challenge in which their principal has asked them to devise an invisible security system to cost-effectively protect a treasured mummified troll, while still allowing for visitor viewing during the day. Students generate ideas for solving the grand challenge, first independently, then in small groups, and finally, compiled as a class.
Physics is the scientific study of the basic principles of the universe, including matter, energy, motion and force, and their interactions. Major topics include classical mechanics, thermodynamics, light and optics, electromagnetism and relativity.
All Caught Up
Commercial fishing nets often trap unprofitable animals in the process of catching their target species. In the following activity, students will experience the difficulty that fishermen experience while trying to isolate a target species when a variety of animals are found in the area of interest. The class will then discuss the large magnitude of this problem. Students will practice their data acquisition and analysis skills, through the collection of data and processing of this information to
Sound for Sight
Echolocation is the ability to orient by transmitting sound and receiving echoes from objects in the environment. As a result of a Marco-Polo type activity and subsequent lesson, students learn basic concepts of echolocation. They use these concepts to understand how dolphins use echolocation to locate prey, escape predators, navigate their environment, such as avoiding gillnets set by commercial fishing vessels. Students will also learn that dolphin sounds are vibrations created by vocal organs
Do Different Colors Absorb Heat Better?
Students test whether the color of a material affects how much heat it absorbs. Students will place an ice cube in a box made of colored paper (one box per color; white, yellow, red and black), which they will place in the sun. The students will make prediction as to which color will melt the ice cube first. They will record the order and time required for the ice cubes to melt.