Space-time relationism in Newtonian and relativistic physics

I argue that there is natural relationist interpretation of Newtonian and relativistic non-quantum physics. Although relationist, this interpretation does not fall prey to the traditional objections based on the existence of inertial effects.     

Propositional Plausible Logic: Introduction and Implementation

Plausible Logic allows defeasible deduction with arbitrary propositions, and yet when sufficiently simplified it is very similar to the Defeasible Logics of Billington and Nute. This paper presents Plausible Logic, explains some of the ideas behind the definitions, applies Plausible Logic to an example, and proves a coherence result which indicates that Plausible Logic is well behaved. We also report the first complete implementation of propositional Plausible Logic. The implementation has a web interface which makes it available to researchers and students everywhere. The implementation is evaluated experimentally, and is shown to be capable of handling tens of thousands of rules and sufficiently many disjunctions for realistic problems.     

Is Expressed Emotion a Specific Risk Factor for Depression or a Nonspecific Correlate of Psychopathology?

Five Minute Speech Sample Expressed Emotion (FMSS-EE) was examined in families of youth with depressive disorders, nondepressed youth with attention deficit/hyperactivity disorder (ADHD), and community controls screened for the absence of depression and ADHD. Consistent with the hypothesis that FMSS-EE shows some specificity as a risk factor for depression, rates of critical EE were significantly higher among mothers of youth with depression as compared to mothers of nondepressed youth with ADHD, or mothers of controls. When both mothers' and fathers' scores were used to generate family EE ratings, rates of overall EE and critical EE were significantly higher for the depressed group than the control group, but the nondepressed ADHD group did not differ significantly from the other groups. Results support the hypothesis that critical EE in mothers shows some specificity as a risk factor or correlate of depression in youth.     

No Sympathy for the Devil: Narratives about Evil

Christian religious experiences usually take place within the context of a religious group or community. Some of these experiences play a central role in propagating and sustaining group identity and belief. In many Pentecostal and charismatic communities, the most conspicuous experiences of this kind are those orchestrated by the devil, including 'demon possession' and 'supernatural assault'. Often, these encounters are thought to be part of an ongoing 'spiritual war' between the forces of good and evil. Christian victory in this war clarifies and strengthens community identity. Employing an ethnographic approach, this article examines the importance of storytelling in relation to this process. Through an analysis of three oral stories, it is suggested that storytelling is the means through which experiences of evil are interpreted and understood and that it is the essential way in which these experiences are communicated by members of a community to one another.     

A nonlinear regression approach to estimating signal detection models for rating data

This paper considers a regression approach to estimating signal detection parameters for rating data. The methodology is based on the statistical modeling of ordinal data and requires only standard statistical software such as SAS (SAS/STAT User’s Guide, 1999) for computation. The approach is more efficient than the current practice of extracting the parameter estimates with the use of specialized software and analyzing the estimates with the use of a standard statisticalpackage. It greatly facilitate s exploration of the effects of covariates on model parameters. The method is illustrated using a published data set from a single factor multiple-alternative perceptual task, and data from a more complex factorial design examining recognition memory rating data.     

Egalitarianism and the Levelling Down Objection

In an important piece of work Derek Parfit distinguishes two different forms of egalitarianism, 'Deontic' and 'Telic' (Parfit 1995; see also Parfit 1997). He contrasts these with what he calls the Priority View, which is not strictly a form of egalitarianism at all, since it is not essentially concerned with how well off people are relative to each other. His main aim is to generate an adequate taxonomy of the positions available, but in the process he draws attention to some of the different problems they face. I shall argue that there are forms of egalitarianism overlooked by Parfit which avoid the problems encountered by Deontic and Telic Egalitarians.     

Organizational Politics,Perceived Control,and Work Outcomes: Boundary Conditions on the Effects of Politics1

This investigation examined the moderating influences of perceived control (i. e., personal control and job self‐efficacy) on relationships between perceptions of organizational politics and organizational commitment, job satisfaction, intention to turnover, and job stress. Although results failed to support predictions concerning the interaction of perceptions of organizational politics and personal control, some support was found for predictions concerning the interactive influence of perceptions of organizational politics and job self‐efficacy on outcomes. Data from 189 hotel managers supported the hypothesized interactive effects of perceptions of organizational politics and job self‐efficacy for the outcomes of organizational commitment and job satisfaction. These results suggest that job self‐efficacy exacerbates the relationship between perceived politics and certain dysfunctional attitudes.     

A variable-selection heuristic for K-means clustering

One of the most vexing problems in cluster analysis is the selection and/or weighting of variables in order to include those that truly define cluster structure, while eliminating those that might mask such structure. This paper presents a variable-selection heuristic for nonhierarchical (K-means) cluster analysis based on the adjusted Rand index for measuring cluster recovery. The heuristic was subjected to Monte Carlo testing across more than 2200 datasets with known cluster structure. The results indicate the heuristic is extremely effective at eliminating masking variables. A cluster analysis of real-world financial services data revealed that using the variable-selection heuristic prior to the K-means algorithm resulted in greater cluster stability.     

Counselling psychologists' perceptions of the impact of mandatory personal therapy on professional development--an exploratory study

A qualitative study was carried out with recently qualified and trainee counselling psychologists to investigate their opinions as to the impact of mandatory personal therapy on their professional development. The methodology employed was grounded theory using data obtained from indvidual and group interviews. The results indicate that mandatory personal therapy can lead to perceived positive outcomes in terms of professional development including: a sense of the self as a professional through developing reflexivity as a result of being in the role of client; socialization into a professional role through validational and normative experiences such as the therapist modelling good and poor practice; support during times of personal difficulty; and, personal development that leads to a perceived improved ability for the participant to distinguish between personal issues and those of the client. An important effect for participants who did not have a previous substantial experience of personal therapy appeared to be the validation of therapy as an effective psychological intervention.     

Warrant <Emphasis Type=Italic>does</Emphasis> entail truth

Let ‘warrant’ denote whatever precisely it is that makes the difference between knowledge and mere true belief. A current debate in epistemology asks whether warrant entails truth, i.e., whether (Infallibilism) S’s belief that p is warranted only if p is true. The arguments for infallibilism have come under considerable and, as of yet, unanswered objections. In this paper, I will defend infallibilism. In Part I, I advance a new argument for infallibilism; the basic outline is as follows. Suppose fallibilism is true. An implication of fallibilism is that the property that makes the difference between knowledge and mere belief (which I dub ‘warrant*’) is the conjunctive property being warranted and true. I show that this implication of fallibilism conflicts with an uncontroversial thesis we have learned from reflection on Gettier cases: that nonaccidental truth is a constituent of warrant*. It follows that infallibilism is true. In the second part of the paper, I present and criticize a new argument against infallibilism. The argument states that there are plausible cases where, intuitively, the only thing that is keeping a belief from counting as knowledge is the falsity of that belief. Furthermore, it is plausible that such a belief is warranted and false. So, the argument goes, infallibilism is false. I show that this argument fails.