This study examined possible ways to ensure that participants provide fully informed consent for online surveys. Participants were randomly assigned to read either a traditional informed consent or one of three modified versions: enhanced, consent for each key element, or a combination of these two. Those who read the combination version scored higher on a comprehension quiz, guessed at fewer questions, and were more likely to read all of the informed consent than those who received the traditional version. These findings (...) suggest that comprehension can be improved by adopting alternatives to the traditional informed consent. (shrink)

Kant held the moral law to be an objective imperative, an entity in its own right. It carries with it prescriptive force, in parallel to other principles of pure reason, like those of logic and mathematics. Objective imperatives therefore do not derive their authority from any other source,such as common consensus or the will of God. In Objective Imperatives, Ralph C. S. Walker seeks to show that this is a highly defensible view: Kant's Categorical Imperative, properly understood, is broadly (...) right. The key to it is rationality, and not universality, which functions only as anapproximate test. Often, Kant sets the matter out badly, and most of the common objections to him can be shown to be due to misunderstandings. A morality that gives us an objective imperative does appear incompatible with the determinism to which Kant commits himself, but Walker argues that thisappearance is misleading. (shrink)

There are often said to be five main 'theories of truth': correspondence, coherence, pragmatic, redundancy, and semantic theories. The coherence theory of truth equates the truth of a judgment with its coherence with other beliefs. Different versions of the theory give different accounts of coherence, but in all its forms the point is to exhibit truth as an internal relation between beliefs. The pragmatic theory of truth is akin to a coherence theory of this Kantian kind. No coherence theorist need (...) deny the uncontentious claim that for a judgment to be true is for it to stand in a certain relationship, which can be called correspondence, with some state of affairs in the world. The conflict with the redundancy theory may be more apparent than real. For the redundancy theory is not a theory of what truth consists in, but a theory about the meaning of the words 'is true'. (shrink)

It has long been disputed whether Kant's transcendental idealism requires two worlds ? one of appearances and one of things in themselves ? or only one. The one-world view must be wrong if it claims that individual spatio-temporal things can be identified with particular things in themselves, and if it fails to take seriously the doctrine of double affection; versions that insist on one world, without making claims about the identity of individual things, cannot say in what way the world (...) as we know it and the world of things in themselves can be ?the same?. The two-world view must be wrong if it denies Kant's empirical realism, or offers a phenomenalist interpretation of it. On moral grounds Kant ?identifies? each human person with a particular thing in itself, but the relationship here cannot be strict identity; instead its closeness may warrant regarding the two distinct entities as part of a composite whole. Perhaps up to the first edition of the Critique, Kant thought that empirical knowledge required a particular kind of close correspondence between appearances and things in themselves, one that would make it appropriate to speak of composite wholes here also. By the time of the second edition, he saw that there could be no good grounds for thinking that. In this respect something a bit like the one-world theory might make more sense for the first edition than for the second; but in both cases there is room to speak of two worlds as well. Talk of the number of worlds is metaphorical, and both metaphors have their dangers. (shrink)

Originally published: Ithaca, N.Y.: Cornell University Press, 1989. With new pref.

The four sections of the Metaphysische Anfangsgründe der Naturwissenschaft 1 are each introduced by a new definition of matter. For the Phoronomy it is defined as the movable in space (Ak. IV, 480); the other defini­tions presuppose this one. What is the status of the propositions ascribing existence to matter in these senses? Are the metaphysical principles of natural science as pure as the principles of pure understanding, or are they only required for experience which happens, in fact, to contain (...) matter as defined at the beginnings of the sections? (shrink)