Organization of Compensatory Postural Coordination Patterns

The authors investigated whether compensatory postural coordination patterns are organized according to the same dynamical principles as are nonequilibrium phase transitions. Eight participants were asked to maintain upright balance on a moving platform that was sinusoidally translated in the anterior-posterior direction and was systematically increased and decreased 0.19 Hz as a step function every 10 platform cycles through the frequency range 0.19–1.46 Hz. At low platform frequencies, all participants exhibited small joint angular motions with high variability, and the relative phase between the joint motions exhibited drifting patterns and large fluctuations. As platform frequency increased, the amplitude of joint motion increased systematically and joint-specific oscillatory patterns emerged. The findings provided no evidence for a Hopf bifurcation or hysteresis in the transitions of postural coordination modes, however, or, mote generally, a basis for distinguishing the relevance of linear versus nonlinear models of postural control.     

学业自我概念发展中的大鱼小池效应

大鱼小池效应(Big-Fish-Little-Pond Effect,BFLPE)是指对于同等能力的学生来说,进入高能力水平学校或班级的学生要比进入低能力水平学校或班级的学生习得更低的学业自我概念的现象.这类似于我国生活格言“宁做鸡头,不做凤尾”的描述.在系统梳理大鱼小池效应的理论与实证研究文献的基础上,对大鱼小池效应的研究现状进行了总结和分析,提出了大鱼小池效应对我国学校能力分组和学生择校现象的启示.未来应进一步加强大鱼小池效应在统计方法、跨文化一致性、具体发生情境、具体发生年龄及外部效度等方面的探讨与验证.     

不同经验群体的学习观比较

通过对361名具有不同的学科经验和实践经验的被试进行学习观的测查,发现不同经验群体在学习的可控性、学习的速度、知识的组织性以及知识的稳定性等学习观的四个维度上表现出不同程度的差异。     

中学生成就目标定向与学习策略、学业成绩的关系研究

本研究采取问卷法,选取武汉市283名初一和高二学生为被试,考察了中学生成就目标定向与学习策略、学业成绩的关系。结果表明:(1)掌握目标与深加工、元认知策略以及浅表策略三者都存在显著相关,其中与浅表加工策略相关的显著性水平略低,成绩接近目标与三种学习策略都在呈非常显著相关,而成绩回避目标只与浅表策略显著相关;(2)掌握目标和成绩接近目标有助于学业成绩,成绩回避目标不利于取得良好成绩;(3)与初一年级相比,高二年级中成绩接近目标和掌握目标显著下降,采取深加工和元认知策略的水平也下降;初一和高二年级中,男生比女生更多采取掌握目标和元认知策略;(4)多元目标比单一目标的学生更多地使用深加工和元认知策略,但多元目标者并不必然比单一目标者成绩好。     

毅力与学业成绩的关系：有意走神和自发走神的不同中介作用

以3372名5年级小学生为研究对象,采用毅力量表、有意走神和自发走神量表以及学业成绩测验,考察毅力（兴趣一致性和坚持努力）对学业成绩的影响,并检验有意走神和自发走神的中介作用。结果发现：（1）兴趣一致性和坚持努力均显著正向预测学业成绩;（2）有意走神、自发走神在兴趣一致性和坚持努力与学业成绩之间均起显著的中介作用,但两者的中介作用模式存在差异。有意走神在兴趣一致性和坚持努力与学业成绩间的中介作用不同：兴趣一致性负向影响有意走神,有意走神正向影响学业成绩,坚持努力正向影响有意走神,有意走神正向影响学业成绩;而自发走神在兴趣一致性和坚持努力对学业成绩预测的中介作用相同,即兴趣一致性和坚持努力均负向影响自发走神,自发走神负向影响学业成绩。     

THE EFFICACY OF AN ALL-POSITIVE APPROACH TO CLASSROOM MANAGEMENT

This study addressed the question of whether an all-positive approach to classroom management can be effective. The on-task behavior and academic performance of eight, second- and third-grade children with behavior problems were examined. Results indicated that an all-positive approach that relied primarily on praise was not effective. However, when an individualized reward system was used, the children's rates of on-task behavior were high and stable. Similar effects were observed for academic productivity. Thus, a classroom can be managed using only positive consequences. However, to be successful, such an approach may require a considerable amount of teacher time and effort, particularly potent, varied and individual rewards, and high rates of appropriate behavior previously established using both positive and negative consequences.     

学习积极性的心理分析

学习积极性是学生在学习活动中的一种自觉的能动的心理状态。从儿童出生来到这个陌生的世界,他们就不断地和环境相互作用,接受客观现实中的各种刺激并作出相应的应答活动。随着年龄的增长和身心的发展,儿童对周围事物产生强烈的好奇心和旺盛的求知欲。但是,为什么在学校里,有的学生对学习表现出很大的积极性,有的学生却不愿意学习,觉得学习是个沉重的负担,毫无积极性呢?学生的学习积极性究竟从何而来呢?本文仅从心理学的角度对学生的学习积极性谈一谈个人的认识。     

THE EFFECTS OF RECIPROCAL PEER TUTORING AND GROUP CONTINGENCIES ON THE ACADEMIC PERFORMANCE OF ELEMENTARY SCHOOL CHILDREN

We evaluated the effects of reciprocal peer tutoring combined with group reinforcement contingencies on the arithmetic performance of 12 underachieving fifth-grade students. Results indicated that the intervention increased the students' arithmetic performance to a level indistinguishable from their classmates during treatment and 12-week follow-up phases. Pre-, post-, and follow-up sociometric data indicated that the students who participated in the treatment groups increased their amount of peer affiliation with other treatment group members.     

Using response cards to increase student participation in an elementary classroom

The use of response cards during large-group social studies instruction was evaluated in a fourth-grade classroom. The experiment consisted of two conditions, hand raising and write-on response cards, alternated in an ABAB design. During baseline, the teacher called upon 1 student who had raised his or her hand in response to the teacher's question. During the response-card condition, each student in the class was provided with a white laminated board on which to write one- or two-word answers in response to each question asked by the teacher. Rate of active student response during instruction was much higher with response cards than with hand raising. Most students scored higher on daily quizzes following sessions in which response cards were used than they did on quizzes that followed hand-raising sessions. Response cards were preferred over hand raising by 19 of the 20 students in the class.     

FREEDOM AND DETERMINISM: A CONTEMPORARY DISCUSSION

Abstract. The problem of freedom of the will and determinism is one of the most intriguing and difficult in the whole area of philosophy. It constüutes a paradox. If we look at ourselves, at our ability to deliberate and make moral choices, it seems obvious that we are free. On the other hand, if we look at what we believe about causality (i.e., that every event and thing must have a cause), then it appears that we do not have free wills but are determined. Thus we seem to have inconsistent beliefs. In this paper I set forth and analyze the major contemporary arguments for free will and determinism as well as for compatibilism, the position that tries to combine insights from both theories. I end with a brief conclusion regarding my assessment of the status of the arguments.