This paper chronicles my introduction to and subsequent investigation of the Felix Experimental Group (FEG) and its exhibitions of classical physical mediumship. It’s been nearly a century since investigators have had the opportunity to carefully study standard spiritistic phenomena, including the extruding of ectoplasm, and the FEG is the only current physical mediumistic circle permitting any serious controls. The paper details a progressively stringent, personally supervised series of séances, culminating in some well-controlled experiments with video documentation in a secure (...) and private location belonging to one of the investigators. Regrettably, recent indications of fraud (explored also by Michael Nahm in this issue) have tarnished the case as a whole. However, it remains unclear how extensive the fraud has been. Accordingly, this paper evaluates the arguments both for and against the paranormality of the phenomena displayed under the author’s supervision. (shrink)

This paper makes two contributions to the research on cooperation in experimental social dilemmas. First, we demonstrate an interaction between group size and communication in which the effectiveness of communication in promoting cooperation declines as group size increases. Second, we corroborate some previous research showing the positive effect of communication is due to sincere signaling of cooperative intentions. The experimental data comes from 289 undergraduate student subjects playing public goods games over a computer network. These findings suggest that (...) large group size opens up a niche for the evolution of institutions for collective action. (shrink)

This article questions the widespread use of experimental social psychology to understand real-world group disparities. Standard experimental practice is to design studies in which participants make judgments of targets who vary only on the social categories to which they belong. This is typically done under simplified decision landscapes and with untrained decision-makers. For example, to understand racial disparities in police shootings, researchers show pictures of armed and unarmed Black and White men to undergraduates and have them press “shoot” (...) and “don't shoot” buttons. Having demonstrated categorical bias under these conditions, researchers then use such findings to claim that real-world disparities are also due to decision-maker bias. I describe three flaws inherent in this approach, flaws which undermine any direct contribution of experimental studies to explaining group disparities. First, the decision landscapes used in experimental studies lack crucial components present in actual decisions. Second, categorical effects in experimental studies are not interpreted in light of other effects on outcomes, including behavioral differences across groups. Third, there is no systematic testing of whether the contingencies required to produce experimental effects are present in real-world decisions. I apply this analysis to three research topics to illustrate the scope of the problem. I discuss how this research tradition has skewed our understanding of the human mind within and beyond the discipline and how results from experimental studies of bias are generally misunderstood. I conclude by arguing that the current research tradition should be abandoned. (shrink)

Studies of group selection have been done with both natural and manipulated populations using plants, insects and birds. Group selection occurred in all studies and often the strength of group selection was equal to that of individual selection. Laboratory selection experiments resulted in the opposite response to individual selection than that predicted. Selection with plants for high leaf area resulted in plants with smaller leaf area and selection for high emigration rate in beetles produced lines with lower rates. The selected (...) traits included interactions among individuals. Theoretical studies have shown that genetically based interactions among individuals can interfere with individual selection. Evolution can be partitioned into selection and the response to selection. A response to selection requires genetic variation. Properties of group genetic structure for the natural populations are discussed. The experimental populations had controlled group structure and demonstrate that populations can respond to group selection under some genetic structures. (shrink)

Sections include: experiments and generalised causal inference; statistical conclusion validity and internal validity; construct validity and external validity; quasi-experimental designs that either lack a control group or lack pretest observations on the outcome; quasi-experimental designs that use both control groups and pretests; quasi-experiments: interrupted time-series designs; regresssion discontinuity designs; randomised experiments: rationale, designs, and conditions conducive to doing them; practical problems 1: ethics, participation recruitment and random assignment; practical problems 2: treatment implementation and attrition; generalised causal inference: (...) a grounded theory; generalised causal inference: methods for single studies; generalised causal inference: methods for multiple studies; a critical assessment of our assumptions. (shrink)

In this paper, the empirical performance of several preference functionals is assessed using individual and group experimental data. We investigate if there is a risky choice theory that fits group decisions better than alternative theories, and if there are significant differences between individual and group choices. Experimental findings reported in this paper provide answers to both of those questions showing that expected utility gains a “winning” position over higher-level functionals when risky choices are undertaken by individuals as well (...) as by small groups. However, in the group experiment, alternatives improve their relative performance, a fact that hints at the existence of differences between individual and group choices. We interpreted this result as evidence that feelings-like disappointment aversion become stronger in group decision. (shrink)

Most decision-making research in economics focuses on individual decisions. Yet, we know, from psychological research in particular, that individual preferences can be sensitive to social pressures. In this paper, we study the impact of a group environment on individual preferences for risky and ambiguous prospects. In our experiment, each participant was invited to make a series of lottery-choice decisions in two different conditions. In the Alone condition, individuals made private choices, whereas in the Group condition, individuals belonged to a three-person (...) group and group members’ choices were aggregated according to either a majority or unanimity rule. This design allows us to study the impact of a group environment on individuals’ attitude towards both risky and ambiguous prospects, while controlling for the decision rule used in the group. Our experimental results show that when individuals are in the Group condition, they tend to be less risk averse and more ambiguity averse than when they are not part of a group. Our experiment also suggests that the decision rule matters as it shows that these two trends tend to be stronger when the group implements a unanimity rule. Specifically, we found that individuals who belong to a group implementing a unanimity rule are significantly less risk averse than individuals who belong to a group that relies on the majority rule. We obtained a similar—but non-significant—result under ambiguity. (shrink)

Social media chat groups, such as WeChat and WhatsApp groups, are widely applied in online communication. This research has conducted two studies to examine the individual level and collective level’s opinion dynamics in those groups. The opinion dynamic is driven by two variables, people’s perceived peer support and willingness of opinion expression. The perceived peer support influences the willingness of opinion expression, and the willingness influences the dynamics of real opinion-expression. First, the quasi-experimental study recruited twenty-five (...) participants as the observation group and found that decreasing perceived peer support would significantly increase individuals’ expression willingness to protect his/her opinion. To generalize the individual level findings to a collective level, the second study treated the social media chat groups as an undirected fully-connected social network and simulated people’s opinion expression dynamics with an agent-based model. The simulation indicated that with the help of increased willingness of opinion expression, the minority opinion supporters as a collective did not fall silent but continue to express themselves and increasing willingness of opinion expression would maintain the existence of minority opinion but could not help the minority reverse to the majority. (shrink)

This book takes a novel approach by highlighting comparative and long-term historical perspectives on experimental practice. The juxtaposition of accounts of natural, social, and medical experimentation is very enlightening, especially because the authors put the emphasis on the different kinds of objects of experimentation (physical matter, chemical reagents, social groups, organizations, sick individuals, archeological remains) and demonstrate how much the kinds of objects matter for the practice of experimentation, its methods, tools, and methodologies. Taken together, the chapters raise (...) several fascinating questions for further study: What do these different approaches have in common? Why do we call them “experimentation”? What are the intersections among the fields and their developments? The volume engages philosophical approaches that are not well known to Anglophone readers (Bachelard, Bergson, Bernard, Canguilhem, among others) and brings to attention a wealth of Francophone secondary literature on past and present scientific experimentation. The collection fills a yawning gap in science, science studies, and philosophy of science teaching, making it particularly valuable philosophers and historians of science in all subfields. (shrink)

Integrating different perspectives is a sophisticated strategy for developing constructive interactions in collaborative problem solving. However, cognitive aspects such as individuals’ knowledge and bias often obscure group consensus and produce conflict. This study investigated collaborative problem solving, focusing on a group member interacting with another member having a different perspective. It was predicted that mavericks might mitigate disadvantages and facilitate perspective taking during problem solving. Thus, 344 university students participated in two laboratory-based experiments by engaging in a simple rule-discovery task (...) that raised conflicts among perspectives. They interacted with virtual partners whose conversations were controlled by multiple conversational agents. Results show that when participants interacted with a maverick during the task, they were able to take others’ perspectives and integrate different perspectives to solve the problem. Moreover, when participants interacted in groups with a positive mood, groups with a maverick outperformed groups having several perspectives. (shrink)

In the process of cultural learning, people tend to acquire mental representations and behavior from prestigious individuals over dominant ones, as prestigious individuals generously share their expertise and know-how to gain admiration, whereas dominant ones use violence, manipulation, and intimidation to enforce obedience. However, in the context of intergroup conflict, violent thoughts and behavior that are otherwise associated with dominance can hypothetically become prestigious because parochial altruists, who engage in violence against out-groups, act in the interest of their group (...) members, therefore prosocially. This shift would imply that for other in-groups, individuals behaving violently toward out-groups during intergroup conflicts become simultaneously prestigious, making them desirable cultural models to learn from. Using the mechanism of credibility enhancing displays, this article presents preliminary vignette-based evidence that violent CRED s toward out-groups during intergroup conflict increase the perceived trustworthiness of a violent cultural model. (shrink)

One of the traditional ways mathematical ideas and even new areas of mathematics are created is from experiments. One of the best-known examples is that of the Fermat hypothesis, which was conjectured by Fermat in his attempts to find integer solutions for the famous Fermat equation. This hypothesis led to the creation of a whole field of knowledge, but it was proved only after several hundred years. This book, based on the author's lectures, presents several new directions of mathematical research. (...) All of these directions are based on numerical experiments conducted by the author, which led to new hypotheses that currently remain open, i.e., are neither proved nor disproved. The hypotheses range from geometry and topology (statistics of plane curves and smooth functions) to combinatorics (combinatorial complexity and random permutations) to algebra and number theory (continuous fractions and Galois groups). For each subject, the author describes the problem and presents numerical results that led him to a particular conjecture. In the majority of cases there is an indication of how the readers can approach the formulated conjectures (at least by conducting more numerical experiments). Written in Arnold's unique style, the book is intended for a wide range of mathematicians, from high school students interested in exploring unusual areas of mathematics on their own, to college and graduate students, to researchers interested in gaining a new, somewhat nontraditional perspective on doing mathematics. In the interest of fostering a greater awareness and appreciation of mathematics and its connections to other disciplines and everyday life, MSRI and the AMS are publishing books in the Mathematical Circles Library series as a service to young people, their parents and teachers, and the mathematics profession. Titles in this series are co-published with the Mathematical Sciences Research Institute (MSRI). (shrink)

This is a work in the epistemology of functional neuroimaging (fNI) and it applies the error-statistical (ES) philosophy to inferential problems in fNI to formulate and address these problems. This gives us a clear, accurate, and more complete understanding of what we can learn from fNI and how we can learn it. I review the works in the epistemology of fNI which I group into two categories; the first category consists of discussions of the theoretical significance of fNI findings and (...) the second category discusses methodological difficulties of fNI. Both types of works have shortcomings; the first category has been too theory-centered in its approach and the second category has implicitly or explicitly adopted the assumption that methodological difficulties of fNI cannot be satisfactorily addressed. In this dissertation, I address these shortcomings and show how and what kind of experimental knowledge fNI can reliably produce which would be theoretically significant. I take fMRI as a representative fNI procedure and discuss the history of its development. Two independent trajectories of research in physics and physiology eventually converge to give rise to fMRI. Thus, fMRI findings are laden in the theories of physics and physiology and I propose how this creates a kind of useful theory-ladenness which allows for the representation of and intervention in the constructs of cognitive neuroscience. Duhemian challenges and problems of underdetermination are often raised to argue that fNI is of little, if any, epistemic value for psychology. I show how the ES notions of severe tests and error probabilities can be applied in epistemological analyses of fMRI. The result is that hemodynamic hypotheses can be severely tested in fMRI experiments and I demonstrate how these hypotheses are theoretically significant and fuel the growth of experimental knowledge in cognitive neuroscience. Throughout this dissertation, I put the emphasis on the experimental knowledge we obtain from fNI and argue that this is the fruitful approach that enables us to see how fNI can contribute to psychology. In doing so, I offer an error-statistical epistemology of fNI, which hopefully will be a significant contribution to the philosophy of psychology. (shrink)

Dissociation is a phenomenon common in a number of psychological disorders and has been frequently suggested to impair memory for traumatic events. In this study we explored the effects of dissociation on visual memory. A dissociative state was induced experimentally using a mirror-gazing task and its short-term effects on memory performance were investigated. Sixty healthy individuals took part in the experiment. Induced dissociation impaired visual memory performance relative to a control condition; however, the degree of dissociation was not associated with (...) lower memory scores in the experimental group. The results have theoretical and practical implications for individuals who experience frequent dissociative states such as patients with posttraumatic stress disorder. (shrink)

Lakatos’s methodology of scientific research programmes centres around series of theories, with little regard to the role of models in theory construction. Modifying it to incorporate model-groups, clusters of developmental models that are intended to become new theories, provides a description of the model dynamics within the search for physics beyond the standard model. At the moment, there is no evidence for BSM physics, despite a concerted search effort especially focused around the standard model account of electroweak symmetry breaking. (...) Using the framework provided by Lakatosian research programmes, we can capture the way the periphery of a model-group changes as the available parameter space shrinks, while its central tenets remain untouched by unfavourable experimental findings. By way of motivation, I provide two case studies of model-groups that offer alternative mechanisms for electroweak symmetry breaking: supersymmetry and composite-Higgs models. Both of these model-groups are under pressure from the discovery of the Higgs boson, yet they have both been active research projects in the years after the Higgs discovery. However, a proper assessment of the progress of an ongoing research programme is impossible through a purely Lakatosian lens, so I propose replacing it with Laudan’s problem-solving account, which provides ongoing assessment, while offering normative guidance concerning the pursuit-worthiness of research programmes. My incorporation of model-groups into Lakatosian research programmes captures the developments of two attempts to expand our physical description of the world, and Laudan’s problem-solving rationality allows us to assess their pursuit-worthiness. (shrink)

Computational simulations have provided evidence that the use of linguistic cues as group markers plays an important role in the development of linguistic diversity shortcite. Other simulations, however, have contradicted these findings. Similar disagreements exist in sociolinguistics. This paper describes an experimental study in which participants played an anonymous economic game using an instant-messenger-style program and an artificial ‘alien language’. The competitiveness of the game and the frequency with which players interacted were manipulated. Given frequent enough interaction with team-mates, (...) players were able to use linguistic cues to identify themselves. In the most competitive condition, this led to divergence in the language, which did not occur in other conditions. This suggests that both frequency of interaction and a pressure to use language to mark identity play a significant role in encouraging linguistic divergence over short periods, but that neither is suffi cient on its own. (shrink)

Computational simulations have provided evidence that the use of linguistic cues as group markers plays an important role in the development of linguistic diversity shortcite. Other simulations, however, have contradicted these findings. Similar disagreements exist in sociolinguistics. This paper describes an experimental study in which participants played an anonymous economic game using an instant-messenger-style program and an artificial ‘alien language’. The competitiveness of the game and the frequency with which players interacted were manipulated. Given frequent enough interaction with team-mates, (...) players were able to use linguistic cues to identify themselves. In the most competitive condition, this led to divergence in the language, which did not occur in other conditions. This suggests that both frequency of interaction and a pressure to use language to mark identity play a significant role in encouraging linguistic divergence over short periods, but that neither is suffi cient on its own. (shrink)

Experimental research by social and cognitive psychologists has established that cooperative groups solve a wide range of problems better than individuals. Cooperative problem solving groups of scientific researchers, auditors, financial analysts, air crash investigators, and forensic art experts are increasingly important in our complex and interdependent society. This comprehensive textbook--the first of its kind in decades--presents important theories and experimental research about group problem solving. The book focuses on tasks that have demonstrably correct solutions within mathematical, (...) logical, scientific, or verbal systems, including algebra problems, analogies, vocabulary, and logical reasoning problems.The book explores basic concepts in group problem solving, social combination models, group memory, group ability and world knowledge tasks, rule induction problems, letters-to-numbers problems, evidence for positive group-to-individual transfer, and social choice theory. The conclusion proposes ten generalizations that are supported by the theory and research on group problem solving. Group Problem Solving is an essential resource for decision-making research in social and cognitive psychology, but also extremely relevant to multidisciplinary and multicultural problem-solving teams in organizational behavior, business administration, management, and behavioral economics. (shrink)

This anthology translates eighteen papers by Italian philosopher and experimental psychologist Paolo Bozzi, bringing his distinctive and influential ideas to an English-speaking audience for the first time. The papers cover a range of methodological and experimental questions concerning the phenomenology of perception and their theoretical implications, with each one followed by commentary from leading international experts. In his laboratory work, Bozzi investigated visual and auditory perception, such as our responses to pendular motion and bodies in freefall, afterimages, transparency (...) effects, and grouping effects in dot lattices and among sounds. Reflecting on the results of his enquiries against the background of traditional approaches to experimentation in these fields, Bozzi took a unique realist stance that challenges accepted approaches to perception, arguing that experimental phenomenology is neither a science of the perceptual process nor a science of the appearances; it is a science of how things are. The writings collected here offer an important resource for psychologists of perception and philosophers, as well as for researchers in cognitive science. (shrink)

It has long been known that scientists have a tendency to conduct experiments in a way that brings about the expected outcome. Here, we provide the first direct demonstration of this type of experimenter bias in experimental philosophy. Opposed to previously discovered types of experimenter bias mediated by face-to-face interactions between experimenters and participants, here we show that experimenters also have a tendency to create stimuli in a way that brings about expected outcomes. We randomly assigned undergraduate experimenters to (...) receive two different hypotheses about folk intuitions of consciousness, and then asked them to design experiments based on their hypothesis. Specifically, experimenters generated sentences ascribing intentional and phenomenal mental states to groups, which were later rated by online participants for naturalness. We found a significant interaction between experimenter hypothesis and participant ratings indicating a general tendency for experimenters to obtain the result that they expected. These results indicate that experimenter bias is a real problem in experimental philosophy since the methods and design employed here mirror the predominant survey methods of the field as a whole. The bearing of the current results on Knobe and Prinz’s :67–83, 2008) group mind hypothesis is discussed, and new methods for avoiding experimenter bias are proposed. (shrink)

In this paper, we use the risk apportionment technique of Eeckhoudt, Rey and Schlesinger (2007) to study higher order risk preferences for others’ health as well as ex-ante and ex-post inequality preferences for social risky distributions, and their interaction. In an experiment on a sample of university students acting as impartial spectators, we observe risk aversion towards social health losses and a dislike of ex-ante inequality. In addition, evidence for ex-post inequality seeking is much weaker than evidence for ex-ante inequality (...) aversion. Because ex-ante inequality aversion is unrelated to risk aversion, we conclude that simple forms of utilitarianism are not relevant for individual judgment of social risk over health. Last, our investigation of precautionary distribution, which would occur when one particular group in the society suffers from background health risk, shows substantial polarization of preferences. (shrink)

The past 20 years witnessed a growing interest in philosophy of language and linguistics for expressives and, in particular, for slurs – terms that target people and groups on accounts of their belonging to a certain category (typically having to do with ethnic origins, gender, sexual orientation, religion, and so on). This lively debate often relies on empirical claims – “these terms are not derogatory in this context”, “their use affects the audience’s beliefs and attitudes in this and that (...) way”, “reporting a slur backfires”, and so on and so forth. Some scholars have tried to back up their claims with existing empirical data from psychology and psycholinguistics, while a few others went and investigated their questions on experimental grounds. In this chapter, I offer an overview of this experimental literature on slurs and derogatory labels, and I illustrate an array of ways in which the philosophical issues that slurs raise to the proverbial armchair benefit from empirical studies in psychology, psycholinguistics, and experimental philosophy. (shrink)

This study employs a pretest-posttest experimental design to extend recent research pertaining to the effects of teaching business ethics material. Results on a variety of perceptual and attitudinal measures are compared across three groups of students — one which discussed the ethicality of brief business situations (the business scenario discussion approach), one which was given a more philosophically oriented lecture (the philosophical lecture approach), and a third group which received no specific lecture or discussion pertaining to business ethics. (...) Results showed some significant differences across the three groups and demonstrated that for a single lecture, the method used to teach ethics can differentially impact ethical attitudes and perceptions. Various demographic and background variables did not moderate the relationship between the teaching method and the dependent variables, but the sex of the student was strongly associated with the ethical attitude and perception measures. (shrink)

One can know how to ride a bicycle, play the cello, or collect experimental data. But who can know how to properly ride a tandem bicycle, perform a symphony, or run a high-energy physics experiment? Reductionist analyses fail to account for these cases strictly in terms of the individual know-how involved. Nevertheless, it doesn't follow from non-reductionism that groups possess this know-how. One must first show that epistemic extension cannot obtain. This is the idea that individuals can possess (...) knowledge even when others possess some of the epistemic materials generating it. I show that only knowledge-that can be epistemically extended, not knowledge-how. Appeal to epistemic extension is a viable way of avoiding group knowledge-that ascriptions but not group knowledge-how ascriptions. Therefore, groups can know how. (shrink)

This chapter examines the recent work in psychology and experimental philosophy that has targeted the commonsense understanding of group minds. It begins by setting up the conceptual and empirical terrain on which claims about the group mind in commonsense psychology have been constructed. The chapter explains an analysis of the cross‐cultural data, which suggest a greater willingness to ascribe collective mentality in East Asian cultures. It addresses that the different strands of data together support the claim that commonsense psychology (...) is committed to a form of methodological holism, which allows for properties of individuals that critically depend on group membership. The chapter concludes by suggesting that this does not cut against philosophical and scientific attempts to defend the existence of collective intentions and group minds; it merely suggests that such projects must move beyond commonsense strategies for predicting and explaining individual behavior. (shrink)

Helmholtz's public reflection about the nature of the experiment and its role in the sciences is a historically important description, which also helps to analyze his own works. It is a part of his conception of science and nature, which can be seen as an ideal type of science and its goals. But its historical reach seems to be limited in an important respect. Helmholtz's understanding of experiments is based on the idea that their planning, realization and evaluation lies in (...) the hands of a person or group acting according to decisions of free will. In my opinion this idea is characteristic for the foundation of the experimental method in early modern times, not however for several forms of its present structures. Above all, the increasing technization of producing knowledge reduces the roIe of the subject in conducting experiments. My lecture consists of three parts. In its first part I would like to present a summary of Helmholtz's own theory of experiment and the change of his conception of science and nature. In the second part I would like to discuss three examples of his experimental practice, which were taken in chronological order from three different periods of his work; in the third part I would like to compare the examples with the change of his conception of science and nature. (shrink)

Many now countenance the idea that certain groups can have beliefs, or at least belief-like states. If groups can have beliefs like these, the question of whether such beliefs are justified immediately arises. Recently, Goldman Essays in collective epistemology, Oxford University Press, Oxford, 2014) has considered what a reliability-based account of justified group belief might look like. In this paper I consider his account and find it wanting, and so propose a modified reliability-based account of justified group belief. (...) Lackey :341–396, 2016) has also criticized Goldman’s proposal, but for very different reasons than I do. Some of her objections, however, can be lodged against the modified account that I propose here. I also respond to these objections. Finally, I note how some formal and experimental work is relevant to those who are attracted to the kind of reliability-based account of justified group belief I develop here. (shrink)

Cesario provides a compelling critique of the use of experimental social psychology to explain real-world group disparities. We concur with his targeted critique and extend “the problem of missing information” to another common measures of bias. We disagree with Cesario's broader argument that the entire enterprise be abandoned, suggesting instead targeted utilization. Finally, we question whether the critique is appropriately directed at experimental social psychologists.

Experimental philosophy has been engaged in many fields of philosophy and has tried to challenge philosophy from a new horizon. In this article, I have tried to examine what the role of sciences are in altering people’s intuition about free will. Could science educate people’s philosophical intuitions? If yes, should we still rely on their intuition as a rational instrument for our philosophical questions? Do science plus cultural and social differences effect on folks’ view? In this cross-cultural research, the (...) emphasis is mostly on recent breakthroughs on neuroscience and its impact on people’s perspective to free will. I have asked some questions about free will and determinism from two groups of Iranian and European participants. The results of this study revealed an interesting amount of cross-cultural similarities. The findings showed that people have a relatively independent view to free will and determinism. It seems that manipulating laymen’s opinion by either the idea of scientific determinism or living under pressure and challenging social conditions cannot touch their perspective. I tried to indicate that the techniques of experimental philosophy and the data offered might help us to learn more and more about the psychological processes, in the mind of the folks, that engender philosophical problems. (shrink)

This study uses a quasi-experimental design to investigate what happens to individual socially responsible attitudes when they are exposed to group dynamics. Findings show that group engagement increases individual attitudes toward social responsibility. We also found that individuals with low attitudes toward social responsibility are more likely to change their opinions when group members show more positive attitudes toward social responsibility. Conversely, individuals with high attitudes do not change much, independent of group characteristics. To better analyze the effect of (...) group dynamics, the study proposes to split social responsibility into relative and absolute components. Findings show that relative social responsibility is correlated with but different from absolute social responsibility although the latter is more susceptible than the former to group dynamics. (shrink)

This article reports an experimental study aimed at evaluating the change of cognitive processes in ethical decision making before and after business ethics training. An experimental design (Solomon Four-Group Design) was used to test the effectiveness of the training within a German university undergraduate business-oriented student sample. The cognitive processes in decision making (implicit and explicit moral attitudes, selective attention, moral awareness, moral judgment, moral intention, and moral behavior) were measured by using different direct instruments (e.g. questionnaire items (...) for moral judgments and explicit moral attitude scales) as well as indirect measures such as eye-tracking and the Implicit Association Test (IAT). The study yielded mixed results. On the one hand, significant changes in explicit attitudes, moral awareness, moral judgments, moral intention, and moral behavior in the pre-post-measurements of the training group have been revealed. On the other hand, there were no significant differences between the pre-post-measurements of the first training and control group as well as between the posttest-only-measures of the second training and control group. In addition, the implicit measures did not show any significant training effect. Implications with an emphasis on methodological aspects for future research on business ethics training are discussed. (shrink)

The primary objective of this paper is to find out whether there is any possibility of coming up with a philosophy that we can call Filipino. Inspired by the works of Prof. Leonardo Mercado, I suggest an exciting new area of philosophy that can get us to an answer: experimental philosophy. Secondly, I shall bridge the connection between experimental philosophy and the search for Filipino philosophy. More specifically, I shall provide an answer as to how experimental philosophy (...) can be expected to lead to a Filipino philosophy. Then, I shall suggest a novel way in how to do experimental Filipino philosophy, that is, experimental philosophy in the service of discovering a Filipino philosophy, and it is by way of traditional empirical methods in anthropology, such as interviews and focus group discussions. Finally, I introduce the charge of limited applicability inspired by Roland Theuas Pada and respond to the objection. I conclude by inviting Filipino philosophers to integrate experimental philosophy in their search for a Filipino philosophy. (shrink)

Trust has traditionally been regarded as conducive to ethical decision making. However, empirical studies on the relationship between trust and ethical decision making are rare, especially those concerning the negative effects of trust. Therefore, our study aimed to provide empirical evidence in this area. An experiment was designed to investigate whether trusted parties are more likely than non-trusted parties to enter into a collusion that will have unfair consequences for a third party. The results showed that trusted parties are significantly (...) more likely to collude than are non-trusted parties. Furthermore, an ancillary analysis revealed the mechanism of trust. First, participants with a stronger need to collude were the most likely to collude in the trust group. Second, experimental and hypothetical settings generated different results, and we suspect that real harm plays a vital role. Overall, we conclude that the absence of trust serves as an impediment to collusion. (shrink)

Evolutionary economics often focuses on the comparison between economic competition and the process of natural selection to select the fitter members of a given population. But that neglects the other "half" of an evolutionary process, the mechanism for the generation of new possibilities that is key to dynamic efficiency. My topic is the process of parallel experimentation which I take to be a process of multiple experiments running concurrently with some form of common goal, with some semi-isolation between the experiments, (...) with benchmarking comparisons made between the experiments, and with the "migration" of discoveries between experiments wherever possible to ratchet up the performance of the group. The thesis is that parallel experimentation is a fundamental dynamic efficiency scheme to enhance and accelerate variation, innovation, and learning in contexts of genuine uncertainty or known ignorance. Within evolutionary biology, this type of parallel experimentation scheme was developed in Sewall Wright's shifting balance theory of evolution. It addressed the rather neglected topic of how a population on a low fitness peak might eventually be able to go "downhill" against selective pressures, traverse a valley of low fitness, and then ascend a higher fitness peak. The theme of parallel experimentation is used to recast and pull together dynamic and pluralistic theories in economics, political theory, philosophy of science, and social learning. (shrink)

Epidemiological studies have confirmed that long-term exposure to road traffic noise can cause cardiovascular diseases, and when noise exposure reaches a certain level, the risk of related CDs significantly increases. Currently, a large number of Chinese residents are exposed to high noise exposure, which could greatly increase the risk of cardiovascular disease. On the other hand, relevant studies have found that people with high noise sensitivity are more susceptible to noise. And it is necessary to pay more attention to the (...) high noise-sensitive people. This study investigated the acute physiological effect of different noise-sensitive groups by indoor-level noise stimulus experiments under laboratory conditions, by observing heart rate variability indicators, including standard deviation of NN intervals, low frequency/high frequency, and heart rate. The results showed that there was no significant difference in HRV between the high-sensitive group and the low-sensitive group at the physiological baseline and the different stimulating noise levels. Then, based on the theory of cumulative effect of noise proposed by WHO Regional Office for Europe, non-significant but observable differences between groups were further discussed. By analyzing differences of the variation trends and the within-group significant changes of SDNN and HR between the two groups, the results tended to show that the high-sensitive group is more affected by road traffic noise. In addition, the values of SDNN and HR showed observable between-group differences at 55 dB and 65 dB which corresponding to the SPL associated with a significantly increased risk of cardiovascular disease concerned by epidemiological studies. According to the cumulative effect theory, these differences in HRV caused by short-term noise stimulation may have the potential to produce physiological response and lead to between-groups differences in prevalence after long-term recurrent effect, and deserve attention and further research. (shrink)

In recent years, the term experimental phenomenology has come to refer to the work of various researchers, mainly Italian, of whom Gaetano Kanizsa and Paolo Bozzi are the most representative. Their work is well presented in this article by Bianchi and Burro (2022). My objection is to what I consider to be the misnomer and misleading name “experimental phenomenology,” which gives the impression that we are dealing with a homogeneous group following a unified approach. However, this is not (...) the case. The phenomenological view is not the same for everyone, ranging from borrowings from Gestalt theory, as in Kanizsa, to Gibsonian ecologism, as in Bozzi. And, most importantly, the research designs of these researchers are only sometimes experimental, sometimes quasi-experimental, but more often non-experimental. (shrink)

Attempts to understand the fundamental forces shaping conflict between attacking and defending groups can be hampered by a narrow focus on humans and reductionist, oversimplified modelling. Further progress depends on recognising the striking parallels in between-group conflict across the animal kingdom, harnessing the power of experimental tests in nonhuman species and modelling the eco-evolutionary feedbacks that drive attack and defence.

The aim of this work is the reduction of the throttling noise when the capillary is used as a throttling device. Based on the theory of bubble dynamics, two-phase flow, and aerated supercavitation, four different sizes of aerated devices used in refrigerator refrigeration systems are designed. Throttling noise and the temperature and pressure of inlet and outlet of the capillary are measured under stable operation. To compare the noise suppression effects in different groups of experiments, we introduced the cavitation (...) number to analyze, revealed the principle of aerated supercavitation to suppress noise, and combined the results of Fluent simulations to get the relationship between the noise suppression effect and the aerated quality. The experimental results showed that the aerated device can obviously suppress the throttling noise of the capillary outlet, up to 2.63 dB, which provides a new way for reducing the capillary throttling noise. (shrink)

The central hyperexcitability observed in animal models supports a pathophysiological explanation for chronic human pain. Novel information on cholecystokinin (CCK) upregulation offers a rationale for reduced opioid response in neuropathic pain. However, the basic information provided by scientists should not lead clinicians to equate experimental models to chronic human conditions. Clinicians should provide careful reports and attempt to classify pathophysiologically clinical conditions that have so far been grouped generically. [blumberg et al.; coderre & katz; dickenson; wiesenfeld-hallin et al.].

The target article offers a game-theoretical analysis of primitive intergroup aggression (i.e., raiding) and discusses difficulties in achieving peace. We argue the analysis does not capture the actual strategy space, missing out “do-nothing.” Experimental evidence robustly shows people prefer doing nothing against out-group members over cooperating with/attacking them. Thus, the target article overestimates the likelihood of intergroup aggression.

In the last few decades, the historiographical categories rationalism and empiricism have been criticized for their limitations to explain the complex positions and the links held by the philosophers tradiotnally attached to them. This narrative was firstly conceived by Kantian German historians and began to become standard at the turn of the twentieh century. Nonetheless, nineteenth-century French historiography developed other narratives by which early modern philosophers were classified according to alternative criteria. In the first edition of Histoire comparée des systémes (...) de philosophie (1804), Joseph-Marie Degérando distinguishes three first-order early modern schools founded by Bacon, Descartes and Leibniz, respectively. Degérando introduces the empiricism and rationalism distinction as one among others, and not as the fundamental one. In addition, he separates empiricism from experimental philosophy. The last one, along with speculative philosophy, is said to conciliate senses and reason. As a result, this account offers philosophical groupings different from those constructed by the standard narrative. Furthermore, it draws on labels and classification criteria which were part of the early modern philosophical discourse. (shrink)