Scepticism,epistemic luck,and epistemic angst

A commonly expressed worry in the contemporary literature on the problem of epistemological scepticism is that there is something deeply intellectually unsatisfying about the dominant anti-sceptical theories. In this paper I outline the main approaches to scepticism and argue that they each fail to capture what is essential to the sceptical challenge because they fail to fully understand the role that the problem of epistemic luck plays in that challenge. I further argue that scepticism is best thought of not as a quandary directed at our possession of knowledge simpliciter, but rather as concerned with a specific kind of knowledge that is epistemically desirable. On this view, the source of scepticism lies in a peculiarly epistemic form of angst.

It is always by favour of Nature that one knows something.     

Resurrecting the Moorean Response to the Sceptic

G. E. Moore famously offered a strikingly straightforward response to the radical sceptic which simply consisted of the claim that one could know, on the basis of one's knowledge that one has hands, that there exists an external world. In general, the Moorean response to scepticism maintains that we can know the denials of sceptical hypotheses on the basis of our knowledge of everyday propositions. In the recent literature two proposals have been put forward to try to accommodate, to varying extents, this Moorean thesis. On the one hand, there are those who endorse an externalist version of contextualism, such as Keith DeRose, who have claimed that there must be some contexts in which Moore is right. More radically still, Ernest Sosa has expanded on this externalist thesis by arguing that, contra DeRose's contextualism, Moore may be right in all contexts. In this paper I evaluate these claims and argue that, suitably modified, one can resurrect the main elements of the Moorean anti-sceptical thesis.     

The measurement of role variables: Exploratory examination of a new approach

New measures of role ambiguity, role conflict, and role overload were developed for a group of attorneys located in the headquarters of a large energy company. These measures were based upon a recently developed theory of behavior in organizations, which focuses on specific job products as an essential component of organizational roles. The measures have an attractive potential for applied efforts (e.g., training) to rectify or diminish role stress problems. Forty respondents completed the product-based measures in addition to commonly used measures of the role variables and a number of outcome measures. Results indicated that (1) the product-based role measures displayed patterns of relationships with outcomes which were quite similar to the patterns for commonly used role measures, and (2) the product-based measures of role variables compared favorably to commonly used measures in terms of frequency of relationships to outcome variables and appeared to be somewhat superior in terms of method variance problems.     

Factors associated with adolescent saving and spending patterns

This study examined the saving and spending behaviors of 1,619 employed high school seniors from over 1,000 private and public schools across the United States. Students were categorized as savers, necessity spenders, and discretionary spenders based on their responses to the question, "How do you spend the money that you earn?" Associations of student spending and saving patterns with individual and family factors were analyzed. Student savers were from families who saved and planned money use. Students who spent more for necessities were from families with fewer resources and greater financial difficulties. Discretionary spenders felt that money was important and were from families with higher income and socioeconomic status. Findings are discussed in light of the importance of families as socializing agents of their children.     

Estimating the impact of variable costs on SDy in complex situations

The inclusion of variable costs when estimating the standard deviation of job performance in dollars has been the basis for a number of highly important advances in utility analysis (e.g. Boudreau, 1983; Boudreau & Berger, 1985). However, no studies have shown the feasibility of incorporating variable costs in situations where multiple types of costs might require global estimation of variable costs. Results obtained from a nationwide sample of insurance personnel indicated that global estimates of variable costs were feasible to obtain in such complex situations but that those costs were not a fixed percentage of the value of job performance. Judges reported that the most important inputs of information into their estimates of the value of job performance in dollars were performance and output as well as initiative of the job holder. Surprisingly, salary related information was not reported as a relatively important input.The authors wish to thank Patricia G. Roth, Bart Osburn, and Jim Phillips for reviewing previous drafts of this work and contributing their valuable comments. The paper has improved as a result of their insights.     

Counterfactual thinking in mock juror assessments of negligence: A preliminary investigation

This Research Report presents an initial attempt to apply the theory of counterfactual thinking to study the cognitive processes that underlie judgments of negligence. Subjects reviewed a summary of an appellate case involving a work accident and listed all the ways in which the accident could have been undone (mutated). Participants' evaluations of the defendant's behavior were influenced by the ease of mutation of the negligent act and other mutations of the defendant's behavior, but not by the number of mutations of the plaintiffs conduct. Exploratory path analysis suggested that counterfactual thinking may have its greatest impact not as a direct influence on verdicts and damages, but rather as an indirect influence impacting verdicts through lower level judgments about the normality of the defendant's behavior and the standard of care. The results also suggest that contrary to the law, subjects base their negligence verdicts on assessments of normal care along with due care.     

The roles of location specificity and masking mechanisms in the attentional blink

In a series of four experiments using rapid serial visual presentations of two target letters embedded in numeral distractors, with different numbers of display positions and with or without masking, we show that (1) the nonmonotonic, U-shaped attentional blink (AB) function, which occurs when all items are presented at the same display location, is eliminated in favor of a monotonic function when targets and distractors are presented randomly dispersed over four or nine adjacent positions; (2) the AB monotonicity is maintained with the spatially distributed presentation even when backward masks are used in all possible stimulus positions and when the location of the next item in sequence is predictable; and (3) the If-shaped AB is not due to position-specific forward or backward masking effects occurring at early levels of visual processing. We tentatively conclude that the U-shaped AB is primarily a function of the interruption of late visual processing produced when the item following the first target occurs at the same location. In order for the AB to severely disrupt performance, the item following the first target must be presented at the same location as the target so that it can serve both as a distractor and as a mask interrupting or interfering with subsequent visual processing.     

Selective attention and inhibitory deficits in ADHD: Does subtype or comorbidity modulate negative priming effects?

Selective attention has durable consequences for behavior and neural activation. Negative priming (NP) effects are assumed to reflect a critical inhibitory component of selective attention. The performance of adolescents with Attention Deficit/Hyperactivity Disorder (ADHD) was assessed across two conceptually based NP tasks within a selective attention procedure. Comorbidity (non-comorbid ADHD vs. comorbid ADHD) and subtype (ADHD combined vs. ADHD inattentive) were considered key issues. Results found NP effects to differ as a function of comorbidity but not subtype. Findings are discussed in light of functional neuroimaging evidence for neuronal enhancement for unattended stimuli relative to attended stimuli that strongly complements an inhibitory-based explanation for NP. Implications for the ‘AD’ in ADHD and contemporary process models of the disorder are considered.     

Defusing epistemic relativism

This paper explores the question of whether there is an interesting form of specifically epistemic relativism available, a position which can lend support to claims of a broadly relativistic nature but which is not committed to relativism about truth. It is argued that the most plausible rendering of such a view turns out not to be the radical thesis that it is often represented as being.