We analyze log-data generated by an experiment with Mathtutor, an intelligent tutoring system for fractions. The experiment compares the educational effectiveness of instruction with single and multiple graphical representations. We extract the error-making and hint-seeking behaviors of each student to characterize their learning strategy. Using an expectation-maximization approach, we cluster the students by their strategic profile. We find that a) experimental condition and learning outcome are clearly associated b) experimental condition and learning strategy are not, and c) almost all of (...) the association between experimental condition and learning outcome is found among students implementing just one of the learning strategies we identify. This class of students is characterized by relatively high rates of error as well as a marked reluctance to seek help. They also show the greatest educational gains from instruction with multiple rather than single representations. The behaviors that characterize this group illuminate the mechanism underlying the effectiveness of multiple representations and suggest strategies for tailoring instruction to individual students. Our methodology can be implemented in an on-line tutoring system to dynamically tailor individualized instruction. (shrink)

Glenberg 's rethinking of memory theory seems limited in its ability to handle abstract symbolic thought, the selective character of cognition, and the self. Glenberg 's framework can be elaborated by linking it with theoretical efforts concerned with cognitive development and ecological perception. These elaborations point to the role of memory in specifying the self as an active agent.

The target article offers an intriguing hypothesis relating the content of phenomenal experience to a qualitative characteristic of information processing. This hypothesis, however, offers only an explanation of the of consciousness, not the – the experiencing agent remains mysterious. Their hypothesis about the unity of consciousness can be linked to an informational account of the agency or subjectivity of consciousness.

Dienes & Perner's target article constitutes a significant advance in thinking about implicit knowledge. However, it largely neglects processing details and thus the time scale of mental states realizing propositional attitudes. Considering real-time processing raises questions about the possible brevity of implicit representation, the nature of processes that generate explicit knowledge, and the points of view from which knowledge may be represented. Understanding the propositional attitude analysis in terms of momentary mental states points the way toward answering these questions.

The target article addresses important empirical issues, but adopts a nonanalytic stance toward consciousness and presents the mentalistic view as a very radical position that rules out informational description of anything other than conscious mental states. A better mentalistic strategy is to show how the structure of some informational states is both constitutive of consciousness and necessary for psychological functions.

Aesthetics and the Environment presents fresh and fascinating insights into our interpretation of the environment. Traditional aesthetics is often associated with the appreciation of art, but Allen Carlson shows how much of our aesthetic experience does not encompass art but nature--in our response to sunsets, mountains or horizons or more mundane surroundings, like gardens or the view from our window. Carlson argues that knowledge of what it is we are appreciating is essential to having an appropriate aesthetic experience (...) and that a scientific understanding of nature can enhance our appreciation of it, rather than denigrate it. (shrink)

In this paper, I examine Quine's views on the epistemology of logic. According to Quine's influential holistic account, logic is central in the “web of belief” that comprises our overall theory of the world. Because of this, revisions to logic would have devastating systematic consequences, and this explains why we are loath to make such revisions. In section1, I clarify this idea and thereby show that Quine actually takes the web of belief to have asymmetrical internal structure. This raises two (...) puzzles. First, as I show in section 2, Quine's mature thoroughly naturalized view has it that logic is simply obvious, and this is explains why we do not typically consider revising it. While Quine presents this naturalized view as a way to make good on his earlier metaphor of centrality in a web of belief, I argue that the resources of Quine's naturalized epistemology cannot adequately explain why we are reluctant to revise logic. And, Quine seems to recognize this point himself. In light of this, I explain in section 3 how Quine can allow that our overall scientific theory has systematic structure in a way that is consistent with his naturalistic strictures. Second, the asymmetrical internal structure of the web of belief seems to be inconsistent with its being a holistic web at all. I defuse this problem in section 4 by showing how Quine distinguishes between structural and confirmational considerations. I close by using this distinction to show how Quine's view can evade Michael Friedman’s criticisms, and allow for important methodological distinctions between areas of the web of belief. (shrink)

Environmental aesthetics is an emerging field of study that focuses on nature's aesthetic value as well as on its ethical and environmental implications. Drawing on the research of a number of disciplines, this exciting new area speaks to scholars working in a range of fields, including not only philosophy, but also environmental and cultural studies, public policy and planning, social and political theory, landscape design and management, and art and architecture. _Nature, Aesthetics, and Environmentalism: From Beauty to Duty_ addresses the (...) complex relationships between aesthetic appreciation and environmental issues and emphasizes the valuable contribution that environmental aesthetics can make to environmentalism. Allen Carlson, a pioneer in environmental aesthetics, and Sheila Lintott, who has published widely in aesthetics, combine important historical essays on the appreciation of nature with the best contemporary research in the field. They begin with classic pieces by Ralph Waldo Emerson, Henry Thoreau, John Muir, John Burroughs, and Aldo Leopold, as well as an essay by Eugene Hargrove that lays out the scientific, artistic, and aesthetic foundations of current environmental beliefs and attitudes. The second section of the book addresses prevailing views on the conceptualization of nature and the various debates on how to properly and respectfully appreciate nature. The third section introduces positive aesthetics, the belief that everything in nature is essentially beautiful, even the devastation caused by earthquakes or floods. The essays in the final section explicitly bring together aesthetics, ethics, and environmentalism to explore the ways in which each might affect the others. (shrink)

The development and nature of environmental aesthetics -- Aesthetic appreciation and the natural environment -- The requirements for an adequate aesthetics of nature -- Aesthetic appreciation and the human environment -- Appreciation of the human environment under different conceptions -- Aesthetic appreciation and the agricultural landscape -- What is the correct way to aesthetically appreciate landscapes?

The roots of environmental aesthetics reach back to the ideas of eighteenth-century thinkers who found nature an ideal source of aesthetic experience. Today, having blossomed into a significant subfield of aesthetics, environmental aesthetics studies and encourages the appreciation of not just natural environments but also human-made and human-modified landscapes. _Nature and Landscape_ is an important introduction to this rapidly growing area of aesthetic understanding and appreciation. Allen Carlson begins by tracing the development of the field's historical background, and then (...) surveys contemporary positions on the aesthetics of nature, such as scientific cognitivism, which holds that certain kinds of scientific knowledge are necessary for a full appreciation of natural environments. Carlson next turns to environments that have been created or changed by humans and the dilemmas that are posed by the appreciation of such landscapes. He examines how to aesthetically appreciate a variety of urban and rural landscapes and concludes with a discussion of whether there is, in general, a correct way to aesthetically experience the environment. (shrink)

A selection of speeches and essays from the author's second decade as president of Yale University.

The concepts of freedom and equality lie at the heart of much contemporary political debate. But how, exactly, are these concepts to be understood? And do they really represent desirable political values? Norman begins from the premise that freedom and equality are rooted in human experience, and thus have a real and objective content. He then argues that the attempt to clarify these concepts is therefore not just a matter of idle philosophical speculation, but also a matter of practical politics, (...) for the philosophical conclusions we reach also have important implications for the day-to-day world of political action. Touching on the work of such influential thinkers as Mill, Berlin, Hayek, Nozick, Rawls, and Williams, this book serves as a valuable introduction to the central issues in political philosophy. (shrink)

A principal aim of the branch of ethics called ‘population theory’ or ‘population ethics’ is to find a plausible welfarist axiology, capable of comparing total outcomes with respect to value. This has proved an exceedingly difficult task. In this paper I shall state and discuss two ‘trilemmas’, or choices between three unappealing alternatives, which the population ethicist must face. The first trilemma is not new. It originates with Derek Parfit's well-known ‘Mere Addition Paradox’, and was first explicitly stated by Yew-Kwang (...) Ng. I shall argue that one horn of this trilemma is less unattractive than Parfit and others have claimed. The second trilemma, which is a kind of mirror image of the first, appears hitherto to have gone unnoticed. Apart from attempting to resolve the two trilemmas, I shall suggest certain features which I believe a plausible welfarist axiology should possess. The details of this projected axiology will, however, be left open. (shrink)

We will study patterns which occur when considering how Σ 1 -elementary substructures arise within hierarchies of structures. The order in which such patterns evolve will be seen to be independent of the hierarchy of structures provided the hierarchy satisfies some mild conditions. These patterns form the lowest level of what we call patterns of resemblance . They were originally used by the author to verify a conjecture of W. Reinhardt concerning epistemic theories 449–460; Ann. Pure Appl. Logic, to appear), (...) but their relationship to axioms of infinity and usefulness for ordinal analysis were manifest from the beginning. This paper is the first part of a series which provides an introduction to an extensive program including the ordinal analysis of set theories. Future papers will conclude the introduction and establish, among other things, that notations we will derive from the patterns considered here represent the proof-theoretic ordinal of the theory KPℓ 0 or, equivalently, Π 1 1 −CA 0. (shrink)

In Section 1, I rehearse some arguments for the claim that morality should be ``action-guiding'', and try to state the conditions under which a moral theory is in fact action-guiding. I conclude that only agents who are cognitively and conatively ``ideal'' are in general able to use a moral theory as a guide to action. In Sections 2 and 3, I discuss whether moral ``actualism'' implies that morality cannot be action-guiding even for ideal agents. If actualism is true, an ideal (...) agent will know about her own future actions. Since such foreknowledge is often thought to be incompatible with deliberation, and since action-guidance presupposes the possibility of deliberation, there is an apparent difficulty in combining actualism with the requirement of action-guidance. In opposition to an argument by Jan Österberg, I try to show that actualism and action-guidance are in fact compatible. (shrink)

This study examines a moderated/mediated model of ethical leadership on follower job satisfaction and affective organizational commitment. We proposed that managers have the potential to be agents of virtue or vice within organizations. Specifically, through ethical leadership behavior we argued that managers can virtuously influence perceptions of ethical climate, which in turn will positively impact organizational members’ flourishing as measured by job satisfaction and affective commitment to the organization. We also hypothesized that perceptions of interactional justice would moderate the ethical (...) leadership-to-climate relationship. Our results indicate that ethical leadership has both a direct and indirect influence on follower job satisfaction and affective commitment. The indirect effect of ethical leadership involves shaping perceptions of ethical climate, which in turn, engender greater job satisfaction and affective organizational commitment. Furthermore, when interactional justice is perceived to be high, this strengthens the ethical leadership-to-climate relationship. (shrink)

Historical interest in the ideologies behind the ‘first’ British empire have tended, for very understandable reasons, to look towards the colonies of the eastern seaboard of North America and the Caribbean. By contrast, this study of the imperial vision held by the English philosopher and politician Francis Bacon (1561–1626) emphasises a different geography of empire. In an investigation of what Bacon took to be the implications of the union of the kingdoms of England and Scotland in the person of King (...) James VI & I, and in the pacification of Ireland following the conclusion of the Nine Years’ War in 1603 and the Flight of Earls in 1607, it argues that Bacon’s own imperial ambitions were ultimately directed towards the annexation of the Low Countries and the founding of a new British imperium in western Europe. (shrink)

This paper criticizes the consequentialist theory recently put forward by Fred Feldman. I argue that this theory violates two crucial requirements. Another theory, proposed by Peter Vallentyne, is similarly flawed. Feldman's basic ideas could, however, be developed into a more plausible theory. I suggest one possible way of doing this.

The Aesthetics of Human Environments is a companion volume to Carlson's and Berleant's The Aesthetics of Natural Environments. Whereas the earlier collection focused on the aesthetic appreciation of nature, The Aesthetics of Human Environments investigates philosophical and aesthetics issues that arise from our engagement with human environments ranging from rural landscapes to urban cityscapes. Our experience of public spaces such as shopping centers, theme parks, and gardens as well as the impact of our personal living spaces on the routine (...) activities of our everyday life are discussed in terms of their aesthetic value and the nature of our aesthetic appreciation. This volume will appeal to any reader concerned about the aesthetic quality of the world in which we live. (shrink)

Mothers use online resources frequently to obtain information on pregnancy, birth, and parenting. Yet, second-time mothers may have different concerns than first-time mothers given they have a newborn infant and another child at home. The current study conducted an on-line textual analysis of the posts of second-time mothers during pregnancy and the first months postpartum on the BabyCenter LLC website, one of the largest online parenting communities. Latent Dirichlet Allocation analysis on roughly 16,000 posts to BabyCenter birth clubs in 2017 (...) by approximately 4,000 users revealed second-time mothers relied on the online support of the BabyCenter community to share and discuss topics of pregnancy, birth, and child rearing. Second-time mothers also raised questions about preparing their firstborn children for a new baby sibling, how they would care for two children, whether they would love the second one as much as the first, and how the second child would change family dynamics. Future research needs to recognize that second-time mothers may have distinct concerns surrounding the birth of their second baby, and antenatal education and parenting classes may need to be modified to be more inclusive of these women’s needs and perspectives. Online parenting communities offer avenues to support women as they make the transition from one child to two and may provide targeted opportunities to disseminate evidence-based practices that can assist these women and their children. (shrink)