Williamson's Master Argument on Vagueness

According to Timothy Williamson's epistemic view, vague predicates have precise extensions, we just don't know where their boundaries lie. It is a central challenge to his view to explain why we would be so ignorant, if precise borderlines were really there. He offers a novel argument to show that our insuperable ignorance ``is just what independently justified epistemic principles would lead one to expect'. This paper carefully formulates and critically examines Williamson's argument. It is shown that the argument does not explain our ignorance, and is not really apt for doing so. Williamson's unjustified commitment to a controversial and crucial assumption is noted. It is also argued in three different ways that his argument is, in any case, self-defeating – the same principles that drive the argument can be applied to undermine one of its premises. Along the way, Williamson's unstated commitment to a number of other controversial doctrines comes to light.     

The Joint Influence of Supervisor and Subordinate Emotional Intelligence on Leader–Member Exchange

Purpose  

The purpose of this study was to investigate the relationship between supervisor and subordinate levels of emotional intelligence (EI) and leader–member exchange (LMX). Drawing on the similarity-attraction paradigm and behavioral integration theory, we propose that supervisor–subordinate EI similarity will play a prominent role in LMX development.     

Predicting preference for items during periods of extended access based on early response allocation

Top‐ranked items were identified during 30‐min free‐operant preference assessments for 9 individuals. Data from each session were analyzed to identify the item (a) that was engaged with first in each session and (b) to which the most responding was allocated after 5 min, 10 min, 15 min, 20 min, and 25 min had elapsed in each session. The results indicated that the first‐engaged item and the 5‐min high‐allocation item predicted the top‐ranked item in 55% and 62% of the sessions, respectively. The results also showed that engagement with the top‐ranked item from the first session decreased across subsequent sessions for 6 of the 9 participants. The implications of the results for brief versus extended stimulus preference assessments are discussed.     

Emotional stimuli modulate readiness for action: A transcranial magnetic stimulation study

Emotional stimuli may prime the motor system and facilitate action readiness. Direct evidence for this effect has been shown by recent studies using transcranial magnetic stimulation (TMS). When administered over the primary motor cortex involved in responding, TMS pulses elicit motor-evoked potentials (MEPs) in the represented muscles. The amplitudes of these MEPs reflect the state of corticospinal excitability. Here, we investigated the dynamic effects of induced emotions on action readiness, as reflected by corticospinal excitability. Subjects performed a choice task while viewing task-irrelevant emotional and neutral pictures. The pattern of MEP amplitudes showed a typical increase as the TMS pulse was presented closer in time to the imminent response. This dynamic pattern was amplified by both pleasant and unpleasant emotional stimuli, but more so when unpleasant pictures were viewed. These patterns present novel evidence in support of the notion that emotional stimuli modulate action readiness.     

A Propensity Score Analysis of Homework Adherence-Outcome Relations in Cognitive Behavioral Therapy for Depression

Little is known about whether or not a consistently high level of homework adherence over the course of therapy benefits patients. This question was examined in two samples of patients who were receiving individual Cognitive Behavioral Therapy (CBT) for depression (Ns = 128 [Sequenced Treatment Alternatives to Relieve Depression: STAR-D] and 183 [Continuation Phase Cognitive Therapy Relapse Prevention: C-CT-RP]). Logistic and linear regression and propensity score models were used to identify whether or not clinician assessments of homework adherence differentiated symptom reduction and remission, as assessed by the Hamilton Depression Rating Scale-17 (HDRS-17), the Quick Inventory of Depressive Symptomatology–Self-Reported Scale (QIDS-SR), and the QIDS–Clinician Scale (QIDS-C). CBT-related response and remission were equally likely between both high and low homework adherers in both studies and in all models. But in propensity adjusted models that adjusted for session attendance, for both the STAR-D and C-CT-RP samples, greater homework adherence was significantly associated with greater response and remission from depression in the first and last 8 sessions of CBT. Our results suggest that homework adherence can account for response and remission early and late in treatment, with adequate session attendence.     

Negation on the Australian Plan

Journal of Philosophical Logic - We present and defend the Australian Plan semantics for negation. This is a comprehensive account, suitable for a variety of different logics. It is based on two...     

The Political Activity of Evangelical Clergy in the Election of 2000: A Case Study of Five Denominations

This article focuses on the political participation of ministers from five evangelical Protestant denominations that differ in theology, polity, and history. Despite such differences, these clergy respond to political influences in much the same fashion. We find that the standard theories of political participation have varying success in accounting for their political involvement. Sociodemographic explanations provide little help, but psychological engagement with politics has more explanatory power. Professional role orientations are the best predictors of actual participation. And the clergy who see moral reform issues as the most important confronting the country—and who hold conservative views on such issues—are most likely to become engaged. Finally, membership in Christian Right organizations serves to elicit more activity than might occur if ministers were left to internally motivated participation. Despite the emphasis on other contextual variables in some work on clerical politics, we find that communications exposures, congregational influences, and even the support of clerical colleagues have very limited independent effects on political involvement.     

Alternative Strategies for Evaluating Student Learning – Edited by Michelle V. Achacoso and Marilla D. Svinicki

Books reviewed: Alternative Strategies for Evaluating Student Learning. Edited by Michelle V. Achacoso and Marilla D. Svinicki. New Directions for Teaching and Learning, No. 100. San Francisco: Jossey‐Bass Publishers, 2004. 122 pages. ISBN 0‐7879‐7970‐8. $29.00.