Les protecteurs naturels. Le droit des passants et du hasard

Medical law is written by jurisprudence and authors as well as by legislation. When a person is severely ill, in the case of emergency, and has no tutor to decide medical treatment, everybody may – and must – help him in that decision. “Good Samaritans” are so able to decide in certain circumstances. That is the right written by our Cour de cassation.     

The role of impulses in shaping decisions

This paper explores the extent to which decision behavior is shaped by short‐lived reactions to the outcome of the most recent decision. We inspected repeated decision‐making behavior in two versions of each of two decision‐making tasks, an individual task and a strategic one. By regressing behavior onto the outcomes of recent decisions, we found that the upcoming decision was well predicted by the most recent outcome alone, with the tendency to repeat a previous action being affected both by its actual outcome and by the outcomes of actions not taken. Because the goodness of predictions based on the most recent outcome did not diminish as participants gained experience with the task, we conclude that repeated decisions are continuously affected by impulsive reactions. Copyright © 2010 John Wiley & Sons, Ltd.     

More dead than dead: perceptions of persons in the persistent vegetative state

Patients in persistent vegetative state (PVS) may be biologically alive, but these experiments indicate that people see PVS as a state curiously more dead than dead. Experiment 1 found that PVS patients were perceived to have less mental capacity than the dead. Experiment 2 explained this effect as an outgrowth of afterlife beliefs, and the tendency to focus on the bodies of PVS patients at the expense of their minds. Experiment 3 found that PVS is also perceived as “worse” than death: people deem early death better than being in PVS. These studies suggest that people perceive the minds of PVS patients as less valuable than those of the dead – ironically, this effect is especially robust for those high in religiosity.     

‘Protective donation’: When refusing a request for a donation increases the sense of vulnerability

May refusing a request for a donation be conceived as ‘tempting fate’? Do people feel more vulnerable when they do not comply with such a request? In this paper we examine the link between subjective perceptions of vulnerability and people's willingness to help address a threatening cause. Results of five studies, examining a real life situation, hypothetical scenarios and a controlled lab game with actual monetary costs and rewards, show first, that deliberately helping is positively correlated with the perceived likelihood of becoming a victim of the same misfortune. Second, we show that refusing to donate to a threatening misfortune increases sense of vulnerability. Both phenomena occur especially for people with strong belief in a just world, who believe in a causal relationship between people's behavior and their fortune (rewards and punishments).     

The Performance of Multivariate Methods for Two-Group Comparisons with Small Samples and Incomplete Data

Abstract

In intervention studies having multiple outcomes, researchers often use a series of univariate tests (e.g., ANOVAs) to assess group mean differences. Previous research found that this approach properly controls Type I error and generally provides greater power compared to MANOVA, especially under realistic effect size and correlation combinations. However, when group differences are assessed for a specific outcome, these procedures are strictly univariate and do not consider the outcome correlations, which may be problematic with missing outcome data. Linear mixed or multivariate multilevel models (MVMMs), implemented with maximum likelihood estimation, present an alternative analysis option where outcome correlations are taken into account when specific group mean differences are estimated. In this study, we use simulation methods to compare the performance of separate independent samples t tests estimated with ordinary least squares and analogous t tests from MVMMs to assess two-group mean differences with multiple outcomes under small sample and missingness conditions. Study results indicated that a MVMM implemented with restricted maximum likelihood estimation combined with the Kenward–Roger correction had the best performance. Therefore, for intervention studies with small N and normally distributed multivariate outcomes, the Kenward–Roger procedure is recommended over traditional methods and conventional MVMM analyses, particularly with incomplete data.     

Modeling dating decisions in a mock swiping paradigm: An examination of participant and target characteristics

New online dating platforms, such as Tinder, are dramatically changing the context in which people seek romantic relationships. In these platforms, users select partners they are willing to start a conversation with by “swiping” on them. These platforms provide exciting possibilities for applying new methods to test how user (e.g., demographic, personality) and target/partner (e.g., attractiveness, race) factors predict attraction. Across four laboratory studies (total N = 2,679), target physical attractiveness and target race were the largest predictors of decisions in this hypothetical dating context, whereas user individual difference traits were poor predictors. The current studies provide substantive information about the factors that predict romantic attraction in the context of mobile-based dating applications.     

A multidimensional framework for financial–economic decisions

Most financial–economic decisions are made consciously, with a clear and constant drive to ‘good’, ‘better’ or even ‘optimal’ decisions. Nevertheless, many decisions in practice do not earn these qualifications, despite the availability of financial economic theory, decision sciences and ample resources. We plea for the development of a multidimensional framework to support financial economic decision processes. Our aim is to achieve a better integration of available theory and decision technologies. We sketch (a) what the framework should look like, (b) what elements of the framework already exist and which not, and (c) how the MCDA community can co‐operate in its development. Copyright © 2003 John Wiley & Sons, Ltd.