This paper introduces a realistic 3D model supported virtual environment for environmental education, that highlights the importance of water resource sharing by focusing on the tragedy of the commons dilemma. The proposed virtual environment entails simulations that are controlled by a multi-agent simulation model of a real ecosystem consisting…

This study examines the effects of ethics training on the attitudes, knowledge-based scores, and analysis of ethical dilemmas among office professionals. A treatment- and control-group design was used with variables of interest measured before, immediately after, and ninety days following completion of a six-hour ethics training workshop. A…

This study examines effects of individual development accounts (IDAs) on household wealth of low-income participants. Methods: This study uses longitudinal survey data from the American Dream Demonstration (ADD) involving experimental design (treatment group = 537, control group = 566). Results: Results from quantile regression analysis indicate…

A school improvement program that provided support to poor-performing schools on the basis of needs identified in a school improvement plan was implemented in 72 government schools in Jamaica, from 1998 to 2005. In this independent evaluation of the program, we use propensity score matching to create, post hoc, a control group of schools that were…

Objectives: To assess the impact of a voluntary, paraprofessional home visiting program in preventing child maltreatment and reducing the multiple, malleable psychosocial risks for maltreatment for which families had been targeted. Methods: This collaborative, experimental study focused on 6 Healthy Families Alaska (HFAK) programs; 325 families…

This paper presents an updated cost-benefit analysis of the High/Scope Perry preschool Program, using data on individuals aged 40. Children were randomly assigned to a treatment or control group. Program costs are compared against treatment impacts on educational resources, earnings, criminal activity, and welfare receipt. Net present values are…

Currently, the teaching of retake GCSE mathematics in further education is predominantly teacher-centred and transmission-oriented. This paper argues that this approach is ineffective for students' learning and for their attitudes towards learning and that a student-centred, collaborative approach to learning, where discussion and reflection are…

The suggestions offered in this paper are based on the experiences of two scientific researchers of how evaluations undertaken in a competitive arena, in which true experimental designs are not viable, can be designed in such a way that meaningful comparative data can be examined. Case studies of the Science and Engineering Research Semester and…