The effects of cumulative practice on mathematics problem solving

This study compared three different methods of teaching five basic algebra rules to college students. All methods used the same procedures to teach the rules and included four 50-question review sessions interspersed among the training of the individual rules. The differences among methods involved the kinds of practice provided during the four review sessions. Participants who received cumulative practice answered 50 questions covering a mix of the rules learned prior to each review session. Participants who received a simple review answered 50 questions on one previously trained rule. Participants who received extra practice answered 50 extra questions on the rule they had just learned. Tests administered after each review included new questions for applying each rule (application items) and problems that required novel combinations of the rules (problem-solving items). On the final test, the cumulative group outscored the other groups on application and problem-solving items. In addition, the cumulative group solved the problem-solving items significantly faster than the other groups. These results suggest that cumulative practice of component skills is an effective method of training problem solving.     

The evolution of epistemology and concepts in an iterative-generative reflective practice: the importance of small differences

Using a contextualist epistemology, it would be expected that regional differences in community psychology would develop over time. It is argued that the epistemology and theory of Western Australian community psychology, while largely based on North American approaches, has developed its own idiosyncracies. These developed through the integration of practice and theory in an iterative-generative fashion. The process of development is conceptualized in terms of Schön's and Altman's distinctions between foundational knowledge, and professional and socially responsive knowledge (I. Altman, 1996; D. A. Schön, 1983). It has also been characterized as an incremental development based on the reflection on tacit and conceptual knowledge. From the small differences that have developed between regions, a dialogue can emerge that will better allow understanding of how social forces shape people's actions.     

马克思的本体论思想及其当代意义

马克思的本体论思想日益引起学界的关注。本文认为,必须从马克思的哲学革命变革的宗旨和使命出发,把本体论问题放到“解释世界”和“改变世界”的框架内,才能给马克思的本体论思想以及正确的诠释和定位,马克思终点了传统的思辨形而上学本体论,但却继承和光大了人类的形而上情结和追求,并以人和人的实践活动底蕴,深刻地回答了世界本真存在的追问,关爱生命,提高人的素质,促进人的全面发展,这就是马克思本体论思想的当代价值所在。     

Expertise and the evolution of consciousness

This paper argues that expertise can be used as an indicator of consciousness in humans and other animals. The argument is based on the following observations: (1) expertise and skill acquisition require deliberate practice; and (2) the characteristics of deliberate practice such as performance evaluation against a more proficient model, retention of voluntary control over actions, self-monitoring, goal-setting, error-detection and correction, and the construction of hierarchically organized retrieval structures are outside of the currently understood bounds of unconscious processing. Thus, to the extent that evidence of expertise exists in an organism, evidence of conscious experience is also present. Two important implications arise from this conclusion: (1) evidence of expertise can be used as the basis for cross-species comparisons of consciousness; and (2) the evolution of human consciousness can be assessed using fossil evidence of skilled behavior as a measure of consciousness.     

“Things that went well — No serious injuries or deaths”: Ethical reasoning in a normal engineering design process

We argue that considering only a few ‘big’ ethical decisions in any engineering design process — both in education and practice — only reinforces the mistaken idea of engineering design as a series of independent sub-problems. Using data collected in engineering design organisations over a seven year period, we show how an ethical component to engineering decisions is much more pervasive. We distinguish three types of ethical justification for engineering decisions: (1) consequential, (2) deontological or non-consequential, and (3) virtue-based. We find that although there is some evidence for engineering designers as ‘classic’ consequentialists, a more egocentric consequentialism would appear more fitting. We also explain how the idea of a ‘folk ethics’ — a justification in the second category that consciously weighs one thing with another — fits with the idea of the engineering design process as social negotiation rather than as technological progress.     

论中国古代德性主义经济伦理思想的萌芽

周代的“敬德保民”思想中包括了三个方面的经济伦理思想内涵：一、“无逸”的劳动伦理观和“孝养父母”的生产观;二、反对“独专于利”,主张利益分配的公正性;三、在生活方式上,主张“恭俭惟德”的消费观。这些思想具有德性主义的性质。     

Sociology and psychology within the scope of scientific dishonesty

A survey is undertaken based on qualitative analyses of the cases of scientific misconduct from the Danish Committee on Scientific Dishonesty’s first five years of collecting data, with additional information from selected international sources, in which underlying psychological motivations can be judged. An carlier version of this paper was presented at a symposium, Scientific Misconduct. An International Perspective, organised by The Medical University of Warsay, 16 November, 1998.     

The I Ching as a Potential Jungian Application: History and Practice

Swiss psychiatrist Carl Jung had a lifelong interest in the I Ching after discovering it in 1919. Jung’s interest in the I Ching is arguably more practical than purely theoretical or intellectual, and references to I Ching divination appear frequently in his various publications, seminars, letters and clinical practice records. After a few observations on the history of the study of the I Ching in China, the author categorizes Jung’s three uses of the I Ching as physical use (to preview future potentials of outer reality), psychological use (to reveal one’s psychological state), and psychical approach (to engage with the divine through “神”[“shen”, spiritual agencies]). Finally, the author discusses the current Jungian engagement by demonstrating clinical cases in contemporary times. Some Jungian analysts practise I Ching divination to obtain insights into the physical and psychological state of therapeutic relationships and for personal development. This paper is a historical and critical engagement of the Jungian practice of I Ching divination.     

Quantitative research without measurement. Reinterpreting the better-than-average-effect

Established measurement practices have been criticized from various theoretical perspectives. The purpose of this article is to argue that quantitative research could be more defensible if contested assumptions about measurement were abandoned, and to illustrate this thesis with the example of the better-than-average-effect (BTAE). If research on the BTAE is conceptualized as an interpretive endeavor, one can provide arguments that do not rely on psychological measurement for the claim that the BTAE is evidence for self-delusion in people. I outline these arguments and elaborate them by discussing a typical study on the BTAE. Furthermore, I show how a measurement-free characterization of the BTAE reveals an important research gap and points to the specific scientific value of research on the BTAE. Finally, I offer three general suggestions for conducting future interpretive quantitative research: justifying why a quantitative method is suitable for investigating a certain phenomenon, providing a comprehensive interpretation of the numerical results, and exploring participants’ understanding of the study material.     

Motor learning without physical practice: The effects of combined action observation and motor imagery practice on cup-stacking speed

In this study we explored training effects for combined action observation and motor imagery (AO + MI) instructions on a complex cup-stacking task, without physical practice. Using a Graeco-Latin Square design, we randomly assigned twenty-six participants into four groups. This counterbalanced the within-participant factor of practice condition (AO + MI, AO, MI, Control) across four cup-stacking tasks, which varied in their complexity. On each of the three consecutive practice days participants experienced twenty trials under each of the three mental practice conditions. On each trial, a first-person perspective video depicted bilateral cup-stacking performed by an experienced model. During AO, participants passively observed this action, responding only to occasional colour cues. For AO + MI, participants imagined performing the observed action and synchronised their concurrent MI with the display. For MI, a sequence of pictures cued imagery of each stage of the task. Analyses revealed a significant main effect of practice condition both at the ’surprise’ post-test (Day 3) and at the one-week retention test. At both time points movement execution times were significantly shorter for AO + MI compared with AO, MI and the Control. Execution times were also shorter overall at the retention compared with the post-test. These results demonstrate that a complex novel motor task can be acquired without physical training. Practitioners can therefore use AO + MI practice to supplement physical practice and optimise skill learning.