Randomization procedures are used in legal and statistical applications, aiming to shield important decisions from spurious influences. This article gives an intuitive introduction to randomization and examines some intended consequences of its use related to truthful statistical inference and fair legal judgment. This article also presents an open-code Java implementation for a cryptographically secure, statistically reliable, transparent, traceable, and fully auditable randomization tool.

One important ethical issue in randomised controlled trials is randomisation. Relatively little is known about how participating individuals and communities understand and perceive central aspects of randomisation such as equality, fairness, transparency and accountability in community-based trials. The aim of this study was to understand and explore study communities’ perspectives of the randomisation process in a cluster RCT in rural Zambia studying the effectiveness of different support packages for adolescent girls on early childbearing. In this explorative study, in-depth semi-structured interviews (...) were carried out in 2018 with 14 individuals who took part in the randomisation process of the Research Initiative to Support the Empowerment of Girls project in 2016 and two traditional leaders. Two of the districts where the trial is implemented were purposively selected. Interviews were audio recorded and fully transcribed. Data were analysed by coding and describing emergent themes. The understanding of the randomisation process varied. Some respondents understood that randomisation was conducted for research purposes, but most of them did not. They had trouble distinguishing research and aid. Generally, respondents perceived the randomisation process as transparent and fair. However, people thought that there should not have been a “lottery” because they wanted all schools to receive equal or balanced benefits of the interventions. Randomisation was misunderstood by most respondents. Perceived procedural fairness was easier to realize than substantive fairness. Researchers working on Cluster Randomised Controlled Trials should consider carefully how to explain randomisation. (shrink)

Randomised clinical trials provide the most valid means of establishing the efficacy of clinical therapeutics. Ethical standards dictate that patients and clinicians should not consent to randomisation unless there is uncertainty about whether any of the treatment options is superior to the others ("equipoise"). However, true equipoise is rarely present; most randomised trials, therefore, present challenging ethical dilemmas. Minimising the tension between science and ethics is an obligation of investigators and clinicians. This article briefly reviews several techniques for addressing this (...) issue and suggests that unbalanced randomisation, a technique rarely employed in current clinical trial practice, may be useful for enhancing the ethical design of human experimentation. (shrink)

In this paper, we respond to Andrew Avins's recent review of methods whose use he advocates in clinical trials, to make them more ethical. He recommends in particular, “unbalanced randomisation”. However, we argue that, before such a recommendation can be made, it is important to establish why unequal randomisation might offer ethical advantages over equal randomisation, other things being equal. It is important to make a pragmatic distinction between trials of treatments that are already routinely available and trials of restricted (...) treatments. We conclude that unequal randomisation could, indeed, be an ethical compromise between protecting the interests of participants and those of society. (shrink)

Government agencies and nonprofit organizations have increasingly turned to randomized controlled trials (RCTs) to evaluate public policy interventions. Random assignment is widely understood to be fair when there is equipoise; however, some scholars and practitioners argue that random assignment is also permissible when an intervention is reasonably expected to be superior to other trial arms. For example, some argue that random assignment to such an intervention is fair when the intervention is scarce, for it is sometimes fair (...) to use a lottery to allocate scarce goods. We investigate the permissibility of randomization in public policy RCTs when there is no equipoise, identifying two sets of conditions under which it is fair to allocate access to a superior intervention via random assignment. We also reject oft-made claims that alternative study designs, including stepped-wedge designs and uneven randomization, offer fair ways to allocate beneficial interventions. (shrink)

Outcome-adaptive randomization (OAR) has been proposed as a corrective to certain ethical difficulties inherent in the traditional randomized clinical trial (RCT) using fixed-ratio randomization. In particular, it has been suggested that OAR redresses the balance between individual and collective ethics in favour of the former. In this paper, I examine issues of welfare and autonomy arising in relation to OAR. A central issue in discussions of welfare in OAR is equipoise, and the moral status of OAR is crucially (...) influenced by the way in which this concept is construed. If OAR is based on a model of equipoise that demands strict indifference between competing interventions throughout the trial, such equipoise is disturbed by accruing data favouring one treatment over another; OAR seeks to redress this by weighting randomization to the seemingly superior treatment. However, this is a partial response, as patients continue to be allocated to the inferior therapy. Moreover, it rests upon considerations of aggregate harms and benefits, and does not therefore uphold individual ethics. Issues of fairness also arise, as early and late enrollees are randomized on a different basis. Fixed-ratio randomization represents a fuller and more consistent response to a loss of equipoise, as so construed. With regard to consent, the complexity of OAR poses challenges to adequate disclosure and comprehension. Additionally, OAR does not offer a remedy to the therapeutic misconception—participants’ tendency to attribute treatment allocation in an RCT to individual clinical judgments, rather than to scientific considerations—and, if anything, accentuates rather than alleviates this misconception. In relation to these issues, OAR fails to offer ethical advantages over fixed-ratio randomization. More broadly, the ethical basis of OAR can be seen to lie more in collective than in individual ethics, and overall it fares worse in this territory than fixed-ratio randomization. (shrink)

Randomization is an integral part of well-designed statistical trials, and is also a required procedure in legal systems. Implementation of honest, unbiased, understandable, secure, traceable, auditable and collusion resistant randomization procedures is a mater of great legal, social and political importance. Given the juridical and social importance of randomization, it is important to develop procedures in full compliance with the following desiderata: (a) Statistical soundness and computational efficiency; (b) Procedural, cryptographical and computational security; (c) Complete auditability and (...) traceability; (d) Any attempt by participating parties or coalitions to spuriously influence the procedure should be either unsuccessful or be detected; (e) Open-source programming; (f) Multiple hardware platform and operating system implementation; (g) User friendliness and transparency; (h) Flexibility and adaptability for the needs and requirements of multiple application areas (like, for example, clinical trials, selection of jury or judges in legal proceedings, and draft lotteries). This paper presents a simple and easy to implement randomization protocol that assures, in a formal mathematical setting, full compliance to the aforementioned desiderata for randomization procedures. (shrink)

Many in the international development community have embraced the randomized controlled field experiment, akin to a biomedical clinical trial for social interventions, as the new “gold evidential standard” in program impact evaluation. In response, critics have called upon the method’s advocates to consider the moral dimensions of randomization, leading to a debate about the method’s ethics. My research intervenes in this debate by empirically investigating how researchers manage the perception of randomization in the field. Without the possibility of (...) a placebo, researchers rhetorically and materially frame the experiment differently for the control and treatment groups. Three technologies allow for this differential framing: geographic separation, temporal delay, and public randomization ceremonies. Geographic separation is a “technology of opacity” designed to obscure unequal resource distribution by disentangling the intervention and research components of the experiment for the control group. The latter two are technologies of transparency designed to expose the element of randomization but downplay conditions that may affect participant buy in. All three technologies work to preclude collective definitions of fair resource allocation, yet they are not fully successful in preventing modes of confrontation and resistance that lie outside of the experiment’s framing. (shrink)

Cluster randomized controlled trials (cluster RCTs) randomize whole clusters of individuals in testing two or more competing interventions. Here we will present the ethical problems raised by cluster RCTs concerning their effect on inequality. We argue that some inequalities generated by cluster RCTs are larger in scope than those generated from individual RCTs. We also argue that any cluster RCT-generated inequalities, which divide groups rather than individuals, are more problematic in type than the inequalities created in individual RCTs. These concerns (...) should be taken into consideration when designing research at the cluster level, and those conducting the research should consider modified research design strategies in cases where they believe the risk of generating inequalities is large. (shrink)

The principal goal of Alex John London's For the Common Good is to "articulate a new vision for the philosophical foundations of research ethics" which "moves issues of justice from the periphery of the field to the very center." At the core of this new vision is an understanding of research as a "collaborative social activity between free and equal persons," which aims to develop the knowledge public institutions require to establish and maintain a social order in which people may (...) set and pursue their plans of life. Clinical and social scientific research are not therefore morally optional activities, in London's view, but rather the way public institutions acquire the knowledge they... (shrink)

Did the impartiality of clinical trials play any role in their acceptance as regulatory standards for the safety and efficacy of drugs? According to the standard account of early British trials in the 1930s and 1940s, their impartiality was just rhetorical: the public demanded fair tests and statistical devices such as randomization created an appearance of neutrality. In fact, the design of the experiment was difficult to understand and the British authorities took advantage of it to promote their (...) own particular interests. I claim that this account is based on a poorly defined concept of experimental fairness . I present an alternative approach in which a test would be impartial if it incorporates warrants of non-manipulability. With this concept, I reconstruct the history of British trials showing that they were indeed fair and this fairness played a role in their acceptance as regulatory yardsticks. (shrink)

Background Factors that could potentially act as facilitators and barriers to successful recruitment strategies in perinatal clinical trials are not well documented. The objective was to assess lay persons’ understanding of the informed consent for randomized clinical trial in emergency obstetric and newborn care. Methods This was a qualitative study conducted among survivors of severe obstetric complications who were attending the post-natal clinic of Kawempe National Referral Hospital, Uganda, 6–8 weeks after surviving severe obstetric complications during pregnancy or childbirth. The (...) study that involved 18 in-depth interviews was conducted from June 1, 2019 to July 6, 2019. The issues explored included perceptions of the purpose and necessity to conduct such research how research-related information would be disclosed, and what could be the potential benefits and risks of participation. The data was analyzed by thematic analysis. Results Respondents felt that research was necessary to investigate the cause, prevention or complications of an illness, especially as much was known about some pregnancy and newborn complications. Most believed that the emergency contexts affects whether and what prospective participants may understand if information about research was disclosed. Whereas they did not see the value of procedures like randomization, they felt that if these and any other procedures necessary should be done transparently and fairly. The decisions to participate would significantly be influenced by possibility of risk to the unborn baby or the newborn. Solidarity was an important influence on decision-making. Conclusions Respondents valued participation in RCTs in emergency obstetric and newborn care. However, they expressed concerns and valued openness, transparency and accountability with regard to how clinical trials information is disclosed and the decision-making process for clinical trial participation. While autonomy and solidarity are contradictory values, they complement each other during decision-making for informed consent. (shrink)

It would be difficult to overestimate the influence Hume’s problem of induction exercises on contemporary epistemology. At the same time, the problem of induction has not perceptibly slowed the progress of mathematics and science. This ironic state of affairs, immortalized by C. D. Broad’s description of induction as “the glory of science” and “the scandal of philosophy,” ought in all fairness to give both sides some pause. And on occasion, it does: the mathematicians stop to concede that Hume has not (...) yet been answered, the scientists worry about randomization of experiments, and inductive skeptics stir uneasily in their chairs at the mention of certain mathematical theorems that seem palpably to have bearing on the problem. (shrink)

First, Mahtani argues that both in the game The Mug and in the Sleeping Beauty we should not defer to a trusted person under a particular designation if they do not self-identify under this designation. This invites a more complex Reflection Principle. I respond that there are more parsimonious ways to avoid the challenges posed to the Reflection Principle. Second, Mahtani argues that preferences create a hyperintensional context, which poses a challenge to the Ex-Ante Pareto Principle that can be averted (...) by supervaluation. I respond that such an appeal to supervaluation would block randomization as a fair allocation device. (shrink)

Three recent research reports by Topping and Trickey, by Fair and colleagues, and by Gorard, Siddiqui and Huat See have produced data that support the conclusion that a Philosophy for Children program of one-hour-per-week structured discussions has a marked positive impact on students. This article presents data from a follow up study done three years after the completion of the study reported in Fair et al.. The data show that the positive gains in scores on the Cognitive Abilities (...) Test were still present and had not faded after three years. Given the strength of these confirmations of the positive durable impact of the P4C program of structured discussions and given the relatively low cost of implementing the P4C program, it is recommended that it become a standard part of the school curriculum. (shrink)

Resumen: Este artículo analiza cómo se encadenan los planos de lo ontológico y lo óntico en la Teoría Política del Discurso de Ernesto Laclau. Se concluye que, desde el plano ontológico, la hegemonía constituye una forma político-discursiva de articulación y universalización relativa, precaria, contingente y parcial de los particularismos en significantes vacíos que actúan como puntos nodales. Desde el nivel fenoménico-político, Laclau pone en juego estos conceptos para mostrar el desplazamiento y contaminación discursiva entre lo particular y lo universal en (...) la operación hegemónica, que transforma las identidades políticas y construye un orden comunitario y un nuevo sentido común. Desde el nivel ético-político, la conceptualización de la hegemonía se articula a la construcción discursiva de una estrategia socialista y a una democracia radical. Este proyecto político lucha contra los esencialismos y las formas de explotación y opresión social y por un horizonte de liberación que amalgame las luchas de los grupos subordinados y reconozca las diferencias y particularidades como constitutivas y deseables. La teoría formal del populismo presenta algunas inconsistencias óntico-ontológicas en este esquema. Sin embargo, su sobredeterminación simbólica disuelve las disyunciones tajantes entre la lógica y el análisis histórico-político y entre la forma y el contenido. Ello pone de manifiesto el mutuo anudamiento entre lo óntico y lo ontológico y la centralidad de la noción gramsciana de hegemonía para el análisis político y crítico de fenómenos y procesos históricos contemporáneos.: This article analyzes how the ontological and ontic planes are interconnected in Laclau’s political discourse theory. It is concluded that, on the ontological level, hegemony constitutes a political-discursive form of relative, precarious, contingent and partial universalization and articulation of particularities in empty signifiers that act as nodal points. On the phenomenological-political level, Laclau shows the displacement and discursive contamination between the particular and the universal in the hegemonic operation which transforms political identities and builds a communitarian order and a new commonality. On the ethical-political level, the conceptualization of hegemony is articulated as the discursive construction of a socialist strategy and a radical democracy. This political project fights against essentialisms and forms of exploitation and social oppression of subordinate groups, and in favor of a horizon of liberation that recognizes conflicts and differences as constitutive and desirable. The formal theory of populism presents some ontic-ontological inconsistencies in this scheme. However, its symbolic overdetermination dissolves the disjunctions between logic and historical-political analysis and between form and content. This reveals the mutual interconnection between the ontic and the ontological, and the central relevance of the Gramscian notion of hegemony for the political and critical analysis of contemporary historical phenomena and processes. (shrink)

Three recent research reports by Topping and Trickey, by Fair and colleagues, and by Gorard, Siddiqui and Huat See have produced data that support the conclusion that a Philosophy for Children program of one-hour-per-week structured discussions has a marked positive impact on students. This article presents data from a follow up study done three years after the completion of the study reported in Fair et al.. The data show that the positive gains in scores on the Cognitive Abilities (...) Test were still present and had not faded after three years. Given the strength of these confirmations of the positive durable impact of the P4C program of structured discussions and given the relatively low cost of implementing the P4C program, it is recommended that it become a standard part of the school curriculum. (shrink)

La teoría post-marxista y post-estructuralista de Ernesto Laclau representa, actualmente, una de las perspectivas más relevantes para el análisis filosófico de la política. Sin embargo, mantiene un elevado nivel de abstracción y de complejidad conceptual, promoviendo una multiplicidad de interpretaciones divergentes. Sin asumir la defensa de un objetivismo, el presente trabajo se propone analizar algunos mitos y creencias vinculados a la obra laclausiana. De este modo, se busca contribuir a estimular el debate y la crítica sobre sus principales postulados.

En los últimos 30 años asistimos a un drástico proceso de cambio que ha modificado profundamente los parámetros con los que se guiaba la relación entre el Estado y la Sociedad civil. Este proceso, ligado a la hegemonización mundial del neoliberalismo, ha generado intensas transformaciones en los diversos campos. Este artículo se propone indagar en esas transformaciones. Para ello, examina las características principales que definen a este paradigma, dando cuenta de la apropiación que han hecho sus principales teóricos del concepto (...) de globalización. En segundo término, analiza los efectos que sus políticas han provocado en la política, la economía, la cultura y la sociedad. Se sostiene que el éxito del “sistema global neoliberal” reside en que ha logrado despolitizar en gran medida a la sociedad y a su propio discurso. En este sentido, se coloca el eje en sus efectos de despolitización, en particular durante la década del noventa, fase critica del sistema. En el tramo final, se pregunta acerca de las alternativas surgidas en las nuevas democracias latinoamericanas al modelo de globalización neoliberal. (shrink)

En este trabajo se intenta elaborar una indagación epistemológica crítica que contribuya a enriquecer al debate sobre la posibilidad o imposibilidad de abordar los fenómenos de las ciencias sociales y humanísticas de una manera neutral y/o objetiva.. A partir de un enfoque centrado en la teoría post-estructuralista francesa y, más específicamente, en los aportes brindados por el psicoanálisis lacaniano, se concluirá que el psicoanálisis, en su vertiente lacaniana, y retomado de un modo distinto por otros autores, como Zizek, ha mostrado (...) de una manera consistente que este supuesto objetivismo no es más que un imposible. La realidad objetiva no puede ser más que una utopía, en tanto toda realidad es construida por un lenguaje, un orden simbólico, que es contingente y, por lo tanto, relativo. Sin caer en un mero relativismo de los actuales enfoques “posmodernos”, que no exista la Verdad con mayúscula no implica que no existan verdades a medias, “minoradas”, como las denomina Lacan en su obra.Palabras clave: Objetividad, neutralidad valorativa, pos-estructuralismo lacaniano, ciencia sociales y humanísticas.This work tries to elaborate a critical epistemological inquiry that enriches the debate about the possibility or impossibility of approaching social and human science phenomena in a neutral and/or objective way. Starting from a view based on French post-structuralist theory, and more specifically, on contributions from Lacanian psychoanalysis, conclusions will be that psychoanalysis, at least Lacanian psychoanalysis, taken up again in a different way by other authors such as Zizek, has consistently shown that this supposed objectivism is impossible. Objective reality can be no more than a utopia, because all reality is constructed by a language, a symbolic order which is contingent, therefore relative. Without falling into postmodern relativism, the fact that there is no Truth with a capital letter does not imply that there are no truths.Key words: Objectivity, valuative neutrality, Lacanian post-structuralism, social and human sciences. (shrink)

Causation has traditionally been analyzed either as a relation of nomic dependence or as a relation of counterfactual dependence. I argue for a third program, a physicalistic reduction of the causal relation to one of energy-momentum transference in the technical sense of physics. This physicalistic analysis is argued to have the virtues of easily handling the standard counterexamples to the nomic and counterfactual analyses, offering a plausible epistemology for our knowledge of causes, and elucidating the nature of the relation between (...) causation and physical science. (shrink)

Recently, unrestrained consequentialism has been defended against the charge that it leads to unacceptable trade-offs by showing a tradeoff accepted by many of us is not justified by any of the usual nonconsequenlist arguments. The particular trade-off involves raising the speed limit on the Interstate Highway System. As a society, we seemingly accept a trade-off of lives for convenience. This defense of consequentialism may be a tu quoque, but it does challenge nonconsequentialists to adequately justify a multitude of social decisions. (...) Work by the deontologist Frances Kamm, conjoined with a perspective deployed by several economists on the relation between social costs and lives lost, is relevant. It provides a starting point by justifying decisions which involve trading lives only for other lives. But the perspective also recognizes that using resources in excess of some figure to save a life causes us to forego other live-saving activities, thus causing a net loss of life. Setting a speed limit as low as 35 miles per hour might indeed save some lives, but the loss of productivity due to the increased time spent in travel would cost an even greater number of lives. Therefore, many trade-offs do not simply involve trading lives for some lesser value, but are justified as allowing some to die in order to save a greater number. (shrink)

In this article we report the findings of a randomised control clinical trial that assessed the impact of a Philosophy for Children program and replicated a previous study conducted in Scotland by Topping and Trickey. A Cognitive Abilities Test was administered as a pretest and a posttest to randomly selected experimental groups and control groups. The students in the experimental group engaged in philosophy lessons in a setting of structured, collaborative inquiry in their language arts classes for one hour per (...) week for a number of weeks. The control group received the standard language arts curriculum in that one hour. The study found that the seventh grade students who had experienced the P4C program showed significant gains relative to those in the seventh grade control group at a high level of statistical significance, but the eighth grade students in the experimental group did not show such gains over the eighth grade control group. It was discovered that the seventh grade teachers started the program early in the school year and continued it for a period of 22 to 26 weeks, while the eighth grade teachers started much later and used the program for only 4 to 10 weeks. Our findings suggest that the P4C program must involve students in activities for a significant period of time before the program shows results, but that a meaningful impact on students’ cognitive abilities can be achieved in about 24 weeks of lessons, less than half the time evidenced by the study by Topping and Trickey. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Buddhism, Christianity, and Modern Science:A Response to Masao AbeFrank FairAfter number of years of teaching philosophy of science, a few years ago I took up the challenge of teaching philosophy of religion. As one might imagine, it has always seemed to me to be important that our religious convictions harmonize with our best scientific knowledge of how the world works, and this became a more interesting issue when the (...) change in my teaching assignment brought me into contact with the work of Masao Abe, the eminent Japanese Buddhist scholar. His essay "Religion and Science in the Global Age—Their Essential Character and Mutual Relationship" (Abe 1985: 241–248) challenged me to expand my thinking to consider not only how theistic religions such as Christianity relate to science, but also to consider how nontheistic religions, such as Buddhism, might fare when interacting with modern science.In his essay on religion and science Abe expressed his agreement with the thought of Keiji Nishitani in this way:1. It is necessary for each religion to re-examine the basis of its world view. For any religion its world view is not like clothes that one can change whenever one pleases. A world view is to religion what water is to a fish. It is the indispensable condition through which religion can actually come into existence. Water is neither the life of the fish as such, nor its body, yet it is fundamentally linked to both. For a religion to change its world view is a matter no less fatal to it than for a fish to change from salt water to fresh.2. What is even more crucial and important is that each religion re-examine and reinterpret that tradition's understanding of God or the 'ultimate' and His or its relation to human beings and the world. With regard to this second point, Buddhism which is fundamentally non-theistic, is in a somewhat different situation from Christianity, which is basically theistic. (Abe 1985: 244–245)Abe continues: "Theistic answers to the question 'why' in Christianity, such as the 'will of God' and the 'rule of God' are incompatible with modern scientific answers to the question 'how.' This is because the former strongly emphasize the personality of the ultimate while the latter is essentially impersonal" (Abe 1985: 245). In this [End Page 67] discussion, I will follow Abe's lead and consider the question of whether Buddhism is more compatible with modern science than Christianity.Christianity and Modern Science: Tensions and HarmoniesOne set of issues causing tension between modern science and Christianity has to do with history. Briefly, ideas about the creation of the universe, about the special creation of humankind, and about miracles, as in the claims about the resurrection of Jesus, are ideas about the action of God in history. These ideas relate the stance that Abe attributed to Christianity as involving an attempt to answer "why" questions about meaning and purpose, an attempt which he feels brings Christianity into conflict with modern science. I will give a brief account of what I take to be the current state of the discussion about each of these matters, and my point is to argue that Abe's conclusion about the relative superiority of Buddhism over Christianity in relation to modern science is premature at best.The Creation of the UniverseThe rise of the Big Bang theory, which traces the origin of the universe back to a tremendously powerful event several billion years ago, at first gave comfort to traditional ideas of divine creation. However, it soon became apparent that this comfort was ambiguous at best. It was not clear, for instance, that one could really prove on the basis of observational evidence that there was an absolute starting point those many billions of years ago, or whether the totality of things could be going through a huge set of cycles. Then there is the issue that even if there is a "First Cause" responsible for the Big Bang, this does not automatically give evidence that the First Cause is a personal being who cares about us or has any immediate involvement in our lives. The First Cause... (shrink)

Este artículo investiga los vínculos entre el sujeto y la estructura en el transcurso de la teoría política de Ernesto Laclau, integrando sus aspectos teóricos, onto-epistemológicos y axiológico-normativos. A través de la sistematización de sus principales trabajos escritos durante el período 1977-2014, se indaga en sus contribuciones al debate Agente-Estructura y se propone una periodización compleja de su obra. Mediante una articulación pragmática de conceptos del (pos)estructuralismo, el psicoanálisis, la deconstrucción, la fenomenología, el marxismo y la filosofía posanalítica, a partir (...) de su ruptura onto-epistemológica con el esencialismo de los años 80 Laclau construyó una innovadora teoría discursiva del sujeto, superadora tanto del subjetivismo como del objetivismo, y convergente con una estrategia socialista y radicalmente democrática. La razón populista aportó nuevas herramientas que destacaron la capacidad del agente de articular (parcialmente) lo social. Sin embargo, este trabajo marcó un quiebre en su obra, que dejó de lado el análisis retroductivo de las transformaciones históricas más recientes en la estructura social y en las identidades y su conexión con la creciente fragmentación y proliferación de las luchas sociales. Al mismo tiempo, relegó la centralidad de la categoría de articulación para amalgamar la pluralidad de luchas sociales en el capitalismo complejo actual, para priorizar la construcción (tendencial) de un antagonismo binario y una lógica de simplificación y reducción conceptual del espacio social. Desde el plano axiológico, la teoría formal del populismo Laclau abandonó la iniciativa socialista y el desarrollo de los contenidos ético-políticos críticos, inherentes a la teoría posgramsciana de la hegemonía. Se concluye que ―más allá de estas inconsistencias― la teoría posfundacional del sujeto de Laclau realizó aportes innovadores, relevantes y valiosos que contribuyen a superar la falsa disyunción sujeto-estructura, a complejizar el análisis político y social, y a fortalecer la lucha hegemónica, desde una perspectiva antiesencialista. (shrink)

Objective: To examine lay persons’ ability to identify methods of random allocation and their acceptability of using methods of random allocation in a clinical trial context.Design: Leaflets containing hypothetical medical, non-medical, and clinical trial scenarios involving random allocation, using material from guidelines for trial information leaflets.Setting and participants: Adults attending further education colleges , covering a wide range of ages, occupations, and levels of education.Main measures: Judgements of whether each of five methods of allocation to two groups was random in (...) a medical or non-medical scenario. Judgements of whether these allocation methods were acceptable in a randomised clinical trial scenario, with or without a scientific justification for randomisation.Results: The majority of our group of participants judged correctly that allowing people their preference was not random, and that the following were random: using a computer with no information about the individual , tossing a coin, drawing a name out of a hat. Judgements were split over allocating people in turn . Judgements were no different in medical and non-medical scenarios. Few of the correctly identified random methods were judged to be acceptable in a clinical trial scenario. Inclusion of a scientific justification for randomising significantly increased the acceptability of only one random method: allocation by computer.Conclusions: Current UK guidelines’ recommended description of random allocation by computer seems warranted. However, while potential trial participants may understand what random allocation means, they may find it unacceptable unless offered an acceptable justification for its use. (shrink)

Increasingly, experimental economists, when eliciting risk preferences using a set of pairwise-choice problems, have given subjects a third choice, namely that of saying, for example, ‘I am not sure about my preference’ or ‘I am not sure what to choose’. The implications for subjects of choosing this third option vary across experiments depending upon the incentive structure. Some experiments provide no direct financial implications: what is ‘played out’ at the end of the experiment is not influenced by subjects choosing this (...) middle column. In other experiments, if the middle column has been checked, then the payoff is determined by a randomisation of A and B. I report on an experiment, which adopts this latter incentive mechanism, and ask the question as to why people might choose this option, that is “why do they prefer randomisation?” I explore four distinct stories and compare their goodness-of-fit in explaining the data. My results show that the two of the four have the most empirical support. I conclude with a discussion of whether my results have anything to say about preference imprecision. (shrink)

Three recent research reports by Topping and Trickey, by Fair and colleagues, and by Gorard, Siddiqui and Huat See have produced data that support the conclusion that a Philosophy for Children program of one-hour-per-week structured discussions has a marked positive impact on students. This article presents data from a follow up study done three years after the completion of the study reported in Fair et al.. The data show that the positive gains in scores on the Cognitive Abilities (...) Test were still present and had not faded after three years. Given the strength of these confirmations of the positive durable impact of the P4C program of structured discussions and given the relatively low cost of implementing the P4C program, it is recommended that it become a standard part of the school curriculum. (shrink)

When the accrediting association for collegiate schools of business, AACSB International, reformulated its accreditation standards to include a systematic assessment of undergraduates’ progress in analytic and reflective thinking, our interdisciplinary team looked at available instruments. Logistical problems, concerns about validity, and an interest in assessing quantitative skills not covered in the available instruments led us to devise the Texas Assessment of Critical Thinking Skills™ (TACTS™). As part of the process we followed a suggestion from Scriven and Fisher and incorporated novel (...) multiple-rating items. We went through a lengthy process of test validation, employing both expert consultants and a large-scale comparison between performances on a standard critical thinking skills test and the TACTS™. Consequently, our university is in a position to regularly assess the progress made by undergraduates from our College of Business in acquiring the relevant analytic and reflective thinking skills. (shrink)

The paper examines the epistemological side of the Laclau’s political theory, incorporating tools that aim to convert discourse theory into a rigorous, useful, and valid method for socio-political and critical analysis in social sciences. In the first part, it displays some epistemological assumptions and arguments. The second part analyses some problematic epistemological aspects derived from the arguments. The proposal is based on Laclau’s main texts, complementing the analysis with related tools from critical hermeneutics and existential phenomenology. It is argued that (...) the incorporation of these tools to political discourse analysis contribute to solve some of the methodological and epistemic deficits of the theory of hegemony. El trabajo examina el plano epistemológico de la teoría política de Ernesto Laclau, aportando herramientas que tienen por objeto convertir a la teoría del discurso en un método riguroso, útil y válido para el análisis sociopolítico y crítico en ciencias sociales. En la primera parte, despliega una serie de postulados y presupuestos epistémicos. En la segunda parte, analiza algunos aspectos gnoseológicos problemáticos que se derivan de los postulados. Para desarrollar la propuesta, se toman como base los principales textos de Laclau, complementando el análisis con herramientas afines provenientes de la hermenéutica crítica y la fenomenología existencialista. Se sostiene que la incorporación de estas herramientas al análisis político del discurso contribuye a resolver algunos de los déficits metodológicos y epistémicos que presenta la teoría de la hegemonía. (shrink)

An insight, Central to platonism, That the objects of pure mathematics exist "in some sense" is probably essential to any adequate account of mathematical truth, Mathematical language, And the objectivity of the mathematical enterprise. Yet a platonistic ontology makes how we can come to know anything about mathematical objects and how we use them a dark mystery. In this paper I propose a framework for reconciling a representation-Relative provability theory of mathematical truth with platonism's valid insights. Besides helping to clarify (...) the ontology of pure mathematics, I think this approach suggests a novel philosophical interpretation of some central results of modern mathematics, Including godel's incompleteness theorems and the independence theorems for the continuum hypothesis. (shrink)