On Johnson's (2000) Relative Weights Method for Assessing Variable Importance: A Reanalysis

This article provides a reanalysis of J. W. Johnson's (2000) “relative weights” method for assessing variable importance in multiple regression. The primary conclusion of the reanalysis is that the derivation of the method is theoretically flawed and has no more validity than the discredited method of Green, Carroll, and DeSarbo (1978) on which it is based. By means of 2 examples, supplemented by other results from the literature, it is also shown that the method can result in materially distorted inferences when it is compared with another widely used importance metric, namely, general dominance (Azen & Budescu, 2003; Budescu, 1993). Our primary recommendation is that J. W. Johnson's (2000) relative weights method should no longer be used as a variable importance metric for multiple linear regression. In the final section of the article, 2 additional recommendations are made based on our analysis, examples, and discussion.     

How Bias Reduction Is Affected by Covariate Choice,Unreliability, and Mode of Data Analysis: Results From Two Types of Within-Study Comparisons

This study uses within-study comparisons to assess the relative importance of covariate choice, unreliability in the measurement of these covariates, and whether regression or various forms of propensity score analysis are used to analyze the outcome data. Two of the within-study comparisons are of the four-arm type, and many more are of the three-arm type. To examine unreliability, simulations of differences in reliability are deliberately introduced into the 2 four-arm studies. Results are similar across the samples of studies reviewed with their wide range of non-experimental designs and topic areas. Covariate choice counts most, unreliability next most, and the mode of data analysis hardly matters at all. Unreliability has larger effects the more important a covariate is for bias reduction, but even so the very best covariates measured with a reliability of only .60 still do better than substantively poor covariates that are measured perfectly. Why regression methods do as well as propensity score methods used in several different ways is a mystery still because, in theory, propensity scores would seem to have a distinct advantage in many practical applications, especially those where functional forms are in doubt.     

Cognitive deficits of executive functions and decision‐making in obsessive‐compulsive disorder

The nature of cognitive deficits in obsessive‐compulsive disorder (OCD) is characterized by contradictory findings in terms of specific neuropsychological deficits. Selective impairments have been suggested to involve visuospatial memory, set shifting, decision‐making and response inhibition. The aim of this study was to investigate cognitive deficits in decision‐making and executive functioning in OCD. It was hypothesized that the OCD patients would be less accurate in their responses compared to the healthy controls in rational decision‐making on a version of the Cambridge gambling task (CGT) and on the color‐word interference test and on a version of the Tower of Hanoi test (tower test) of executive functioning. Thirteen participants with OCD were compared to a group of healthy controls (n = 13) matched for age, gender, education and verbal IQ. Results revealed significant differences between the OCD group and the healthy control group on quality of decision‐making on the CGT and for achievement score on the tower test. On these two tasks the OCD group performed worse than the healthy control group. The symptom‐dimension analysis revealed performance differences where safety checking patients were impaired on the tower test compared to contamination patients. Results are discussed in the framework of cognition and emotion processing and findings implicate that OCD models should address, specifically, the interaction between cognition and emotion. Here the emotional disruption hypothesis is forwarded to account for the dysfunctional behaviors in OCD. Further implications regarding methodological and inhibitory factors affecting cognitive information processing are highlighted.     

Belief Norms and Blindspots

I defend the thesis that beliefs are constitutively normative from two kinds of objections. After clarifying what a “blindspot” proposition is and the different types of blindspots there can be, I show that the existence of such propositions does not undermine the thesis that beliefs are essentially governed by a negative truth norm. I argue that the “normative variance” exhibited by this norm is not a defect. I also argue that if we accept a distinction between subjective and objective norms, there need be no worrying tension between doxastic norms of truth and doxastic norms of evidence. I show how a similar approach applies to the attitude of guessing. I then suggest that if we distinguish between practical and theoretical rationality, we will prefer a negative form of norm that does not positively oblige us to form beliefs. I finish by considering an alternative possible subjunctive form of norm that would also avoid problems with blindspots, but I suggest this has a nonintuitive consequence.     

Standing Helpless at the Roar and Surging of the Sea

The classical questions of theodicy are regularly brought to the fore by large catastrophes, such as the recent tsunami. The present article reviews a number of responses in early Jewish literature, arguing that a traditional paradigm, based on the idea of retribution and clearly exhibited in deuteronomistic history, lies at the bottom of most – if not all – of these. Today, moralizing as well as apocalyptic readings are rendered meaningless by our evolutionary worldview. Catastrophes are often caused by those very properties of nature that have made the evolution of human life and society possible. We thus need a modified understanding of divine purpose and control. From such a perspective, three gospel texts are discussed: the stilling of the storm, the tower of Siloam and part of Jesus’ eschatological discourse. While trust in God's control in view of natural disasters is difficult to expect, some of these texts may be read against traditional paradigms as invitations to co-operation and common responsibility in relieving human suffering. This is part of the evolution of human life that in the end might help us to find moral, future and even divine purpose.     

God,vision and power

Enlightenment philosopher George Berkeley, Irish bishop of Cloyne (1695–1752) developed a theory of God's relation to the world both rooted in orthodox Western Theology and influential for European secular government. This article critically examines the notion of God in Berkeleian thought with special reference to its implications for his concrete recommendations and political projects in British government and empire building. To this end, it examines the application of early Christian ascetic techniques to enlightenment colonial government. Berkeley's thought exemplifies modernity's modelling of the governing autonomous self on a transcendent impassible God. His ethics represent a practice of cosmology, where the world is watched by the judging subject.     

Inclusivism and the spiritual journey of Marie de Souza Canavarro (1849–1933)

Every age has its share of religious seekers, but during some periods of spiritual crisis greater numbers of seekers seem to appear. Marie de Souza Canavarro, an American advocate and interpreter of Asian traditions, was a paradigmatic seeker in an age of religious wandering. Along the way, she embraced Catholicism, Theosophy, Buddhism, Bahá'í, and Hinduism. In this article I offer an interpretation of her life and work, drawing on her novels, poems, letters, lectures, articles, and autobiography. I argue that amidst the diversity of views she affirmed, there was some continuity. Canavarro longed for rest from her ceaseless wandering, and she hoped that religious and gender inclusivism might bring it. She, like others of her age, yearned for a tradition that elevated women and reconciled religions.     

Information dynamics and uniform substitution

The picture of information acquisition as the elimination of possibilities has proven fruitful in many domains, serving as a foundation for formal models in philosophy, linguistics, computer science, and economics. While the picture appears simple, its formalization in dynamic epistemic logic reveals subtleties: given a valid principle of information dynamics in the language of dynamic epistemic logic, substituting complex epistemic sentences for its atomic sentences may result in an invalid principle. In this article, we explore such failures of uniform substitution. First, we give epistemic examples inspired by Moore, Fitch, and Williamson. Second, we answer affirmatively a question posed by van Benthem: can we effectively decide when every substitution instance of a given dynamic epistemic principle is valid? In technical terms, we prove the decidability of this schematic validity problem for public announcement logic (PAL and PAL-RC) over models for finitely many fully introspective agents, as well as models for infinitely many arbitrary agents. The proof of this result illuminates the reasons for the failure of uniform substitution.     

Digital Animation as a Method to Disseminate Research Findings to the Community Using a Community-Based Participatory Approach

Community-based participatory research (CBPR) has garnered increasing interest over the previous two decades as researchers have tackled increasingly complex health problems. In academia, professional presentations and articles are major ways that research is disseminated. However, dissemination of research findings to the people and communities who participated in the research is many times forgotten. In addition, little scholarly literature is focused on creative dissemination of research findings to the community using CBPR methods. We seek to fill this gap in the literature by providing an exemplar of research dissemination and partnership strategies that were used to complete this project. In this paper, we present a novel approach to the dissemination of research findings to our targeted communities through digital animation. We also provide the foundational thinking and specific steps that were taken to select this specific dissemination product development and distribution strategy.