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121.
Frederick Eberhardt 《Synthese》2008,163(3):433-442
We consider the problems arising from using sequences of experiments to discover the causal structure among a set of variables,
none of whom are known ahead of time to be an “outcome”. In particular, we present various approaches to resolve conflicts
in the experimental results arising from sampling variability in the experiments. We provide a sufficient condition that allows
for pooling of data from experiments with different joint distributions over the variables. Satisfaction of the condition
allows for an independence test with greater sample size that may resolve some of the conflicts in the experimental results.
The pooling condition has its own problems, but should—due to its generality—be informative to techniques for meta-analysis. 相似文献
122.
The present study investigates the joint effect of the quantity and quality of out-of-school activities (i.e., employment and leisure) on academic outcomes (i.e., well-being, study attitude, and academic performance) among 230 undergraduates. A series of hierarchical regression analyses show that spending too much time in both employment and leisure activities has negative relations with undergraduates’ academic outcomes. Work-study interference fully mediated the effect of time engagement in student employment on students’ reported well-being. These findings support a conflict perspective on multiple role engagement. However, results also show positive effects of activities depending on job demand and autonomy and level of autonomous motivation to engage in these activities. We conclude that out-of-school activities can be beneficial for students’ academic outcomes and preparation for the labor market when perceived as relevant for their academic study and performed in a balanced, autonomous way. 相似文献
123.
We explore the immediate and longer term consequences of different types of instruction about a central topic in middle school science: the “Control of Variables Strategy” (CVS). CVS represents the procedural and conceptual basis for designing simple, unconfounded experiments, such that unambiguous causal inferences can be made. CVS appears to be what has been called a “developmentally-secondary” process, because even though infants and pre-schoolers can make simple causal inferences from data, middle school children do poorly at CVS unless they receive instruction on this important topic in the science curriculum. In this study, 72 third, fourth, and fifth-grade students were taught CVS via two instructional methods located at extreme points on the direct-to-discovery spectrum with respect to the amount of guidance, information, support, teacher control, and feedback provided during training. Our design included near- and far-transfer measures (at 1 week, 3 months and 3 years). There were two primary outcomes, both of which replicated and partially extended earlier work by Klahr and Nigam (2004) [Klahr, D., & Nigam, M. (2004). The equivalence of learning paths in early science instruction: Effects of direct instruction and discovery learning. Psychological Science, 15, 661–667] First, at each of the three grade levels, many more children learned CVS in the explicit condition than in the exploration condition. Second, but equally important, what students learned was a better predictor of far transfer than the way that they learned. 相似文献
124.
Zuidas is a new city centre, which is emerging in the outskirts of Amsterdam. The ambitious project of developing a new international
city centre has been carefully planned as the Netherlands has a strong and meticulous tradition for urban planning. The planning
has however not only encompassed traditional urban planning aspects such as infrastructure, environmental factors and aesthetics,
but has also dealt with the design of urban experiences. Through an introduction of the framework of the structure of experiences,
this article examines how urban experiences can be understood and analysed, and deals with how urban experiences can be designed
through careful consideration of how experiences are constituted. Taking the psychological structure of experiences into account
when designing urbanity is not only interesting, but also highly relevant as Zuidas is competing with other international
venues such as La Défense, the Docklands and Potsdamer Platz. 相似文献
125.
126.
Toshihisa Sato Motoyuki Akamatsu 《Transportation Research Part F: Traffic Psychology and Behaviour》2008,11(4):242-258
This paper focuses on modeling and predicting the influence of a vehicle’s velocity and the relative position between a driver’s vehicle and a vehicle to the front or rear on the onset of driver preparations for making a right turn at an intersection. Repeated experiments were carried out on a public road to measure driver preparations, including releasing the accelerator pedal, moving the right foot to cover the brake pedal, and activating the turn signal, as well as to record vehicle velocity and the relative distances to the leading and following vehicles. Structural equation modeling was applied to estimate these relationships quantitatively. Two separate latent variables accounting for the interaction between the driver’s vehicle and leading or following vehicles, and the onset point where driving behavior changes from straight mode to preparation mode before a right turn, were introduced in the specification of the structural equation model. The model estimates and testing indicate that the proposed structural equation model represents well the relationship hypothesized by observational analysis: that the vehicle velocity and the traffic conditions surrounding the driver’s vehicle strongly influence the driver’s deceleration and more weakly influenced turn signal activation. The proposed structural equation model contributes to the prediction of the onset locations of covering the brake pedal and activating the turn signal based on the vehicle velocity and the relative distances to the front and rear vehicles when the accelerator pedal is released. The prediction accuracy is high compared with predictions in which the vehicle velocity and the headway or rear distances are not taken into account or predictions using a single regression model with one independent variable, namely driving speed. Finally, a possible new addition to in-vehicle navigation systems that detects unusual driver behavior by predicting the driver’s preparatory maneuvers is discussed. 相似文献
127.
Guy H. Walker Neville A. Stanton Mark S. Young 《Transportation Research Part F: Traffic Psychology and Behaviour》2008,11(4):282-299
The dominant technological trajectory in vehicle design brings with it similarly dominant driver performance issues in regard to vehicle feedback and driver situational awareness (SA). Three experiments are reported in this paper that describe not only the effects on driver SA of manipulations of vehicle feedback but also illuminate issues concerned with SA measurement methods and contexts. The findings suggest that current trends in vehicle design may contribute little towards a driver’s SA and, in fact, may actually show a generalized trend towards decreasing it. The efficacy of verbal protocol and probe recall SA measurement techniques is noted in terms of observing this effect. On the other hand, a concerning dissociation occurred with findings from a self-report measure of SA. Drivers appear to show a concerning lack of self-awareness of their SA and, indeed, any shortfall in it. 相似文献
128.
Maria João Carvalho Inês Faustino Ana Nascimento Célia Maria Dias Sales 《Counselling and Psychotherapy Research》2008,8(3):166-173
This article reports an effectiveness case study of the individual systemic therapy of a 22‐year‐old Portuguese woman with a diagnosis of paranoid personality disorder, conducted in a university‐based clinic in Lisbon, Portugal. Data were analysed using the hermeneutic single‐case efficacy design, a non‐experimental interpretive approach that aims to determine whether change occurred, whether change was due to therapeutic strategies, and what in therapy caused the change. Results indicate that the treatment was effective and that de‐pathologising Pamina's condition and genogram‐based exploration techniques played a crucial role in her recovery. 相似文献
129.
Jeffrey Wattles 《Zygon》2006,41(2):445-464
Abstract. Current teleology in Western biology, philosophy, and theology draws on resources from four main Western philosophers. (1) Plato's Timaeus shows how to interpret the universe as the handiwork of a purposive Creator who subordinates secondary, necessary, causes to primary, intelligent, causes. (2) Aristotle's Physics sets forth purpose as implicit in the nature of things. Purposes of different sorts inhere in different types of being, and everything has a natural function. Living things grow to actualize the potentials of the goal whose principle they bear within themselves. (3) Kant's Critique of Judgment denies that purpose is anything that human beings can know, strictly speaking. Nevertheless, purpose is a concept we must use to make sense of biological systems. (4) Hegel's Philosophy of Nature articulates organic systems as dialectically including and transcending mechanical and chemical systems. Teleological themes persist, in different ways, in contemporary discussions; I consider two lines of criticism of traditional teleology—by Richard Dawkins and Stephen Jay Gould—and one line that continues traditional teleology in an updated way—by Holmes Rolston, III. 相似文献
130.
This article discusses the specific ethical dilemma of obtaining informed consent and ensuring confidentiality and participant
well-being while conducting a qualitative research study with novice ESL teachers in a Teacher Study Group. The discussion
outlines their process of resolution of the ambiguities inherent in the research process – in essence the researchers’ personal
journey of discovery. The article concludes with the broader implications for making the research process more transparent
for other academic researchers working in the field of language-teacher cognition. 相似文献