Asymmetric cost and benefit perceptions in willingness-to-donate decisions

Charitable giving entails the act of foregoing personal resources in order to improve the conditions of other people. In the present paper, we systematically examine two dimensions integral to donation decisions that have thus far received relatively little attention but can explain charitable behavior rather well: the perceptions of cost for the donor and benefit for the recipients. In line with current theories in judgment and decision making, we hypothesize that people weigh these dimensions subjectively and perceive them asymmetrically, consistent with prospect theory. Costs for the donor are typically perceived as losses, whereas benefits for recipients are perceived as gains. In four studies, we presented several scenarios to participants in which both donation amounts (costs) and number of lives helped (benefits) were manipulated while keeping the ratio of costs and benefits constant. Results from Studies 1 and 2 showed that willingness to help decreased as donation amounts and number of lives helped increased. Additionally, Studies 3 and 4 provide evidence for a solution to reduce the asymmetry and increase donation amounts as the number of lives at risk increases.     

Punishment and the potential for negative reinforcement with histamine injection

The present study examined punishment of responding with histamine injection, and its potential to generate avoidance of punishment. Sprague–Dawley rats were trained under concurrent schedules in which responses on one lever (the punishment lever) produced food under a variable‐interval schedule, and under some conditions intermittent injections of histamine, which suppressed behavior. Responses on a second (avoidance) lever prevented histamine injections scheduled on the punishment lever. After stabilization of punished responding, a variable‐interval 15‐s schedule of cancellation of histamine (avoidance) was added for responding on the second/avoidance lever, without subsequent acquisition of responding on that lever. Progressive decreases in the length of the punishment variable‐interval schedule increased suppression on the punishment lever without increases in response rates on the avoidance lever. Exchanging contingencies on the levers ensured that response rates on the avoidance lever were sufficiently high to decrease the histamine injection frequency; nonetheless response rates on the avoidance lever decreased over subsequent sessions. Under no condition was responding maintained on the avoidance lever despite continued punishing effectiveness of histamine throughout. The present results suggest that avoidance conditioning is not a necessary condition for effective punishment, and confirm the importance of empirical rather than presumed categorization of behavioral effects of stimulus events.     

Interpersonal feedback: a social relations perspective

The social relations model (SRM; Kenny, 1994) is a statistical model for studying interpersonal perception and behavior that can be meaningfully applied to the group therapy situation. It consists of four primary components that correspond to (a) the general emotional or attitudinal climate of the group, (b) the perspective of the perceiver providing the feedback, (c) the group's consensual view of the target who receives the feedback, and (d) the unique relationship between the perceiver and the target. Because of its rigor and specificity, the components of the SRM may serve as a heuristic for thinking about interpersonal feedback in group therapy. A case example is used to demonstrate how an SRM perspective could guide therapists' ways of conceptualizing feedback.     

Screening for malingering in a criminal-forensic sample with the personality assessment inventory

In this study, the authors examined how overreporting of psychopathology indices on the Personality Assessment Inventory (PAI; L. C. Morey, 1991) performed as screening measures for malingering in a sample of 166 defendants undergoing pretrial court-ordered evaluations in the federal criminal justice system. Using results from the Structured Interview of Reported Symptoms (SIRS; R. Rogers, R. M. Bagby, & S. E. Dickens, 1992) as the criterion measure of malingering, the authors found that the Negative Impression scale (NIM) was the most effective PAI screening measure (cut score > or = 81 T). NIM performed as well as an established comparison measure from the Minnesota Multiphasic Personality Inventory--2 (J. N. Butcher, W. G. Dahlstrom, J. R. Graham, A. Tellegen, & B. Kaemmer, 1989; Infrequency [F] cut score > or = 95 T), supporting the use of either of these indices as reasonable screening measures to identify potential malingerers for subsequent evaluation.     

Naturalism and the Space of Reasons in Mind and World

Abstract

This paper aims to show that many criticisms of McDowell’s naturalism of second nature are based on what I call ‘the orthodox interpretation’ of McDowell’s naturalism. The orthodox interpretation is, however, a misinterpretation, which results from the fact that the phrase ‘the space of reasons’ is used equivocally by McDowell in Mind and World. Failing to distinguish two senses of ‘the space of reasons’, I argue that the orthodox interpretation renders McDowell’s naturalism inconsistent with McDowell’s Hegelian thesis that the conceptual is unbounded. My interpretation saves McDowell from being inconsistent. However, the upshot of my interpretation is that what is really at work in McDowell’s diagnosis of the dualism between nature and reason is the Hegelian thesis, not the naturalism of second nature.     

Diagrams: Socrates and Meno's slave

Abstract

When do two mental items belong to the same life? We could be content with the answer ‐just when they have certain volitional qualities in common. An affinity is noted between that theory and Berkeley's early doctrine of the self. Some rivals of the volitional theory invoke a spiritual or physical owner of mental items. They run a risk either of empty formality or of causal superstition. Other rivals postulate a non‐transitive and symmetrical relation in the set of mental items. They must allow in consequence either for joint ownership of one and the same mental item, or for incompatible simultaneous decisions by one and the same person, or for new forms of death. This makes them disquieting. Another rival invokes a transitive and symmetrical relation defined in terms of co‐consciousness. Even that allows for incongruous simultaneities. The volitional theory is free from such disadvantages.     

Bias and learning in temporal binding: Intervals between actions and outcomes are compressed by prior bias

It has consistently been shown that agents judge the intervals between their actions and outcomes as compressed in time, an effect named intentional binding. In the present work, we investigated whether this effect is result of prior bias volunteers have about the timing of the consequences of their actions, or if it is due to learning that occurs during the experimental session. Volunteers made temporal estimates of the interval between their action and target onset (Action conditions), or between two events (No-Action conditions). Our results show that temporal estimates become shorter throughout each experimental block in both conditions. Moreover, we found that observers judged intervals between action and outcomes as shorter even in very early trials of each block. To quantify the decrease of temporal judgments in experimental blocks, exponential functions were fitted to participants’ temporal judgments. The fitted parameters suggest that observers had different prior biases as to intervals between events in which action was involved. These findings suggest that prior bias might play a more important role in this effect than calibration-type learning processes.     

Public justification and investment in failing projects: the moderating effect of optimistic outcome expectations

Public justification can have both desirable and undesirable effects. One dysfunctional consequence demonstrated via laboratory experiments is an increase in the escalation of commitment (i.e., public justification increases investment in failing projects). Based on survey data from 247 failed company projects, this study provides supporting evidence of the escalation‐increasing effect of public justification. Thus, the results support the external validity of prior findings. In addition, this paper hypothesizes and confirms a negative moderating effect of optimistic outcome expectations on the relation between public justification and investments. Specifically, for low optimistic outcome expectations, public justification increases investments in failing projects. In contrast, in cases of highly optimistic outcome expectations, public justification does not further increase investments in failing projects.