We consider the effect on estimation of simultaneous variable centering and interaction effects in linear regression. We technically define, review, and amplify many of the statistical issues for interaction models with centering in order to create a useful and compact reference for teachers, students, and applied researchers. In addition, we…

Recent events have led to an increased interest in emerging infectious diseases. This article applies various deterministic models to the SARS epidemic of 2003 and a measles outbreak in the Netherlands in 1999-2000. We take a historical approach beginning with the well-known logistic curve and a lesser-known extension popularized by Pearl and Reed…

This book is intended to be a resource guide for girls and young women considering careers in science, math, and technology. An introductory chapter considers the status of girls and women in these fields, the importance of role models, and suggestions for using the book. Part 1 introduces readers to the various career opportunities available in…

The second year of a project that developed and implemented a model for on-bus instruction during travel time from two high schools to area vocational centers demonstrated that such an innovative delivery system was viable and effective. All units from Pollock's "A Curriculum Guide for Pre-Employment Skills" were adapted for use in the project.…