Simple regression (regression analysis with a single explanatory variable), and multiple regression (regression models with multiple explanatory variables), typically correspond to very different biological questions. The former use regression lines to describe univariate associations. The latter describe the partial, or direct, effects of multiple variables, conditioned on one another. We suspect that the superficial similarity of simple and multiple regression leads to confusion in their interpretation. A clear understanding of these methods is essential, as they underlie a large range of (...) procedures in common use in biology. Beyond simple and multiple regression in their most basic forms, understanding the key principles of these procedures is critical to understanding, and properly applying, many methods, such as mixed models, generalised models, and causal inference using graphs (including path analysis and its extensions). A simple, but careful, look at the distinction between these two analyses is valuable in its own right, and can also be used to clarify widely-held misconceptions about collinearity (correlations among explanatory variables). There is no general sense in which collinearity is a problem. We suspect that the perception of collinearity as a hindrance to analysis stems from misconceptions about interpretation of multiple regression models, and so we pursue discussions about these misconceptions in this light. In particular, collinearity causes multiple regression coefficients to be less precisely estimated than corresponding simple regression coefficients. This should not be interpreted as a problem, as it is perfectly natural that direct effects should be harder to characterise than univariate associations. Purported solutions to the perceived problems of collinearity are detrimental to most biological analyses. (shrink)

Servais Pinckaers, in his most important work, The Sources of Christian Ethics, asks the provocative question: is the Moral Theology of St. Thomas Aquinas Christian or, alternatively, does Aquinas rely so much on the ethics of Aristotle that his teaching is merely philosophical? This paper presents an overview of Pinckaers’s answer to this question. His answer is important in that it addresses a common misinterpretation of St. Thomas, which is to overstress his Aristotelian influence and understate his reliance on Scripture, (...) the Fathers (especially Augustine), and the New Law of the Gospel. In this way Pinckaers forms part of a ressourcement in Thomistic studies that seeks to reaffirm the evangelical character of Aquinas’s work and its importance in the renewal of Moral Theology called for at Second Vatican Council. (shrink)

"Nothing Better Than Death" is a comprehensive analysis of the near-death experiences profiled on my website at www.near-death.com. This book provides complete NDE testimonials, summaries of various NDEs, NDE research conclusions, a question and answer section, an analysis of NDEs and Christian doctrines, famous quotations about life and death, a NDE bibliography, book notes, a list of NDE resources on the Internet, and a list of NDE support groups associated with IANDS.org - the International Association for Near-Death Studies. -/- The (...) unusual title of this book, "Nothing Better Than Death," was inspired by NDE experiencer Dr. Dianne Morrissey who once said, "If I lived a billion years more, in my body or yours, there's not a single experience on Earth that could ever be as good as being dead. Nothing." -/- Having read every NDE book I could get my hands on, I didn't want to create just another NDE book. My motivation was to give readers a large variety of information about NDEs challenging both the seasoned NDE enthusiast as well as the novice. This book gives readers the means to understand the NDE phenomenon from the perspective of a large number of some of the most profound NDEs ever documented. My hope is that you will enjoy this book, my labor of love, and that you will be truly blessed by the heavenly insights within it. (shrink)

"Nothing Better Than Death" is a comprehensive analysis of the near-death experiences profiled on the www.near-death.com website. This book provides complete NDE testimonials, summaries of various NDEs, NDE research conclusions, a Question and Answer section, an analysis of NDEs and Christian doctrines, famous quotations about life and death, a NDE bibliography, book notes, a list of NDE resources on the Internet, and a list of NDE support groups associated with IANDS.org - the International Association for Near-Death Studies. The unusual title (...) of this book, "Nothing Better Than Death," was inspired by NDE experiencer Dr. Dianne Morrissey who once said, "If I lived a billion years more, in my body or yours, there's not a single experience on Earth that could ever be as good as being dead. Nothing.". (shrink)