The asymptotic values of response probabilities in the Audley-Jonckheere learning model

The asymptotic values of response probabilities in the Audley-Jonckheere learning model, as applied to the two-choice learning situation, are derived for (1) the experimenter-controlled events model, (2) the subject-controlled events model, and (3) the experimenter-subject-controlled events model.     

Effects of temporal uncertainty on watchkeeping performance

Two experiments were conducted to assess the relative effects of signal density and regularity on watchkeeping performance. In Experiment I, three levels of density (6, 24, and 96 signals/hr.) were combined factorially with three levels of variability (coefficients of variation of 0.01, 0.10, and 1.00), and 10 Ss were assigned at random to each of the nine conditions. In Experiment II, five levels of density (6, 12, 24, 48, and 96 signals/hr.) were combined with the same three levels of variability, and 13 Ss were assigned to each condition. Each 5 monitored a visual “blinking-lights” display for an hour under instructions to detect and report the occurrence of certain “critical signals,” i.e., arrests of alternation of the lights. Response times (RT’s) to correctly detected signals in both experiments decreased as a linear function of logarithmic increases in signal density. An uncertainty metric, the signal surprisal due to density, was derived, and the watchkeeper’sRT was expressed as an increasing linear function of this measure of temporal uncertainty. Interpretation of these and other data support a functional, psychophysical approach to the study of watchkeeping behavior.     

Counseling Status and Academic Achievement of College Freshmen

Baccalaureate- (four-year) and associate- (two-year) degree students counseled prior to registration and after registration, and those not counseled were compared on the basis of ability and first-term grade point average. The time of counseling was not significantly related to the achievement of baccalaureate students with high ability or those with low ability. However, significant differences were found between high and low ability associate students in favor of high ability associate students who were counseled during the summer over those who were counseled during the fall, or who were not counseled. Both baccalaureate- and associate-degree students with low ability more frequently earned lower grades and were more concerned about academic probation than students with high ability.     

Reviews of current books

Pastoral Psychology -     

Introducing the super consumer

The purpose of this study is to propose a new perspective on classifying or segmenting consumers by describing a minority of them who are uniquely motivated by high levels of status seeking, brand identification, and materialism. We term this segment of individuals “super consumers.” The data came from an online survey of 351 adult US consumers. A cluster analysis using these three variables as criteria produced a two‐cluster solution. Comparing mean scores between these two groups of consumers on measures of market mavenism, shopping frequency, amount of spending, age, and gender showed that the super consumers were significantly more likely to be market mavens, to shop more frequently, and to spend more than the other consumers were. The super consumers were younger in age as well, but there were no gender differences between the two groups. Copyright © 2015 John Wiley & Sons, Ltd.     

Agent-Regret,Accidents, and Respect

I explore how agent-regret and its object—faultlessly harming someone—can call for various responses. I look at two sorts of responses. Firstly, I explore responses that respect the agent’s role as an agent. This revolves around a feature of “it was just an accident”—a common response to agent-regret—that has largely gone ignored in the literature: that it can downplay one’s role as an agent. I argue that we need to take seriously the fact that those who have caused harms are genuine agents, to ignore this fails to allow these agents to move on. Secondly, following Sussman and MacKenzie, I explore responses that benefit the victim. I argue that we should strive to understand how to configure these responses in a way that does not blame the agent. To do this I look at the role of actions in our self-understanding, as people who have done particular things. I end by briefly considering the ways in which tort law and restorative justice might help us to understand how to appropriately respond to accidentally harming someone. I urge that we need to take this as a starting point to find a better way to respond to the agents of faultless harms.

     

Neuropsychological profiles of children with depressive and anxiety disorders

The neuropsychological functioning of 56 children and young adolescents with diagnoses of unipolar depression (n = 17), anxiety disorder (n = 19), or comorbid anxiety/depressive disorder (n = 20) was examined. The neuropsychological profiles of the three groups were parallel, but not equal in level of performance. The three groups displayed similar patterns of performance with profiles suggesting diminished attention abilities. The groups, however, were not equal in level of performance. While subjects with an anxiety or a depressive disorder were similar in level of performance, subjects with a comorbid anxiety/depressive disorder generally performed worse than those with either an anxiety or depressive disorder alone. There was no significant evidence of asymmetrical cerebral dysfunction in any of the diagnostic groups. Results are discussed in relation to adult models of psychopathology with an emphasis on the importance of considering developmental factors when formulating models of childhood psychopathology.