Voluntariness of consent to research has not been sufficiently explored through empirical research. The aims of this study were to develop a more comprehensive approach to assessing voluntariness and to generate preliminary data on the extent and correlates of limitations on voluntariness. We developed a questionnaire to evaluate subjects’ reported motivations and constraints on voluntariness. 88 subjects in five different areas of clinical research—substance abuse, cancer, HIV, interventional cardiology, and depression—were assessed. Subjects reported a variety of motivations for participation. Offers (...) of financial incentives were common but not influential, pressures from others were rare, and no threats were reported. However, certain financial incentives and—paradoxically—altruistic motivations led some subjects to feel more constrained. Consistent with previous studies, no one pattern of motivation was common to all research subjects. There was little evidence of constrained voluntariness, but some suggestion of areas of concern. Voluntariness appears to be susceptible to systematic empirical investigation. (shrink)

It is my view that one essential difference between persons and other creatures is to be found in the structure of a person's will. Besides wanting and choosing and being moved to do this or that, men may also want to have certain desires and motives. They are capable of wanting to be different, in their preferences and purposes, from what they are. Many animals appear to have the capacity for what I shall call "first-order desires" or "desires of the (...) first order," which are simply desires to do or not to do one thing or another. No animal other than man, however, appears to have the capacity for reflective self-evaluation that is manifested in the formation of second-order desires. (shrink)

Our primary focus is on analysis of the concept of voluntariness, with a secondary focus on the implications of our analysis for the concept and the requirements of voluntary informed consent. We propose that two necessary and jointly sufficient conditions must be satisfied for an action to be voluntary: intentionality, and substantial freedom from controlling influences. We reject authenticity as a necessary condition of voluntary action, and we note that constraining situations may or may not undermine voluntariness, depending on the (...) circumstances and the psychological capacities of agents. We compare and evaluate several accounts of voluntariness and argue that our view, unlike other treatments in bioethics, is not a value-laden theory. We also discuss the empirical assessment of individuals? perceptions of the degrees of noncontrol and self-control. We propose use of a particular Decision Making Control Instrument. Empirical research using this instrument can provide data that will help establish appropriate policies and procedures for obtaining voluntary consent to research. (shrink)

Payment for research participation has raised ethical concerns, especially with respect to its potential for coercion. We argue that characterising payment for research participation as coercive is misguided, because offers of benefit cannot constitute coercion. In this article we analyse the concept of coercion, refute mistaken conceptions of coercion and explain why the offer of payment for research participation is never coercive but in some cases may produce undue inducement.

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Dutch euthanasia legislation states that an act of euthanasia is only permissible if it is based on a voluntary request made in a situation of unbearable suffering to which there are no alternatives.The central question of this article is whether these criteria can be satisfied simultaneously. In an analysis of several (partly overlapping) definitions of voluntariness it is argued that there are circumstances in which this question should be answered negatively.The possible incompatibility of the criteria reveals a tension between different (...) defences of the permissibility of euthanasia. (shrink)

The current prevailing view is that participation in biomedical research is above and beyond the call of duty. While some commentators have offered reasons against this, we propose a novel public goods argument for an obligation to participate in biomedical research. Biomedical knowledge is a public good, available to any individual even if that individual does not contribute to it. Participation in research is a critical way to support an important public good. Consequently, all have a duty to participate. The (...) current social norm is that individuals participate only if they have a good reason to do so. The public goods argument implies that individuals should participate unless they have a good reason not to. Such a shift would be of great aid to the progress of biomedical research, eventually making society significantly healthier and longer lived. (shrink)

Voluntariness of consent to research has not been sufficiently explored through empirical research. The aims of this study were to develop a more comprehensive approach to assessing voluntariness and to generate preliminary data on the extent and correlates of limitations on voluntariness. We developed a questionnaire to evaluate subjects’ reported motivations and constraints on voluntariness. 88 subjects in five different areas of clinical research—substance abuse, cancer, HIV, interventional cardiology, and depression—were assessed. Subjects reported a variety of motivations for participation. Offers (...) of financial incentives were common but not influential, pressures from others were rare, and no threats were reported. However, certain financial incentives and—paradoxically—altruistic motivations led some subjects to feel more constrained. Consistent with previous studies, no one pattern of motivation was common to all research subjects. There was little evidence of constrained voluntariness, but some suggestion of areas of concern. Voluntariness appears to be susceptible to systematic empirical investigation. (shrink)