冲动-思考型儿童在拼图游戏中的问题解决及元认知差异

以小学六年级思考型和冲动型儿童各32名为被试,通过考查儿童在完成不同难度拼图任务时的表现,探讨不同认知风格儿童在问题解决中认知活动和元认知活动的差异。结果发现:(1)在线与离线元认知监控均表现出认知风格与任务难度的交互作用。在简单和中等任务中,思考型的儿童运用更多的在线元认知监控,进行计划和检查的时间更长。离线元认知监控的差异只表现在简单任务中,思考型比冲动型儿童花费更多的时间进行预测和评价;(2)在问题解决结果上,认知风格不同的儿童完成任务的时间没有显著差异;(3)在问题解决过程中,冲动型儿童解决问题的操作步数多于思考型儿童;冲动型儿童更多地使用主体参照策略,而思考型儿童更多使用线索推断策略。     

中学生社会问题解决能力的特点及其与社会适应的关系

采用问卷法,对2157名中学生社会问题解决能力的特点及其与社会适应的关系进行研究。结果发现:(1)从初中到高中,中学生的社会问题解决能力出现下降的趋势;男生在计划制定上显著高于女生,在人际沟通、支持寻求上显著低于女生;班干部的社会问题解决能力显著高于非班干部;(2)中学生的社会问题解决能力可分为建设型、一般型和不良型,所占比例分别为22.9%、42.8%、34.4%,建设型中学生的社会适应状况显著好于一般型和不良型;(3)社会问题解决能力与社会适应状况显著相关,其对积极的社会适应有显著的正向预测作用,对消极的社会适应有显著的负向预测作用;在社会问题解决能力各维度中,问题趋近和问题回避的预测作用最为突出。     

社会性问题解决研究述评

社会性问题解决是指个体在真实的社会情境中,有效地识别日常生活中遇到的特定问题或生活境遇,积极地面对问题,分析问题,发现有效解决方案的自我导向的认知、情感和行为过程。首先分析了社会性问题解决的概念,介绍了相应的测量工具,然后着重分析了社会性问题解决的影响因素(如个性特点),最后总结了社会性问题解决的影响效果。今后的研究需进一步探讨:社会性影响因素、相关研究的拓展和社会性问题解决疗法的应用等问题。     

Deconstructing the tower: Parameters and predictors of problem difficulty on the Tower of London task

The Tower of London (TOL) task has been widely used in both clinical and research realms. In the current study, 104 healthy participants attempted all possible moderate- to high-difficulty TOL problems in order to determine: (1) optimal measures of problem solving performance, (2) problem characteristics, other than the minimum moves necessary to solve the problem, that determine participants’ difficulty in solving problems successfully, quickly, and efficiently, and (3) effects of increased task experience on which problem characteristics determine problem difficulty. A factor analysis of six performance measures found that, regardless of task experience, problem difficulty could be captured well either by a single factor corresponding to general quality of solution or possibly by three subordinate factors corresponding to solution efficiency, solution speed, and initial planning speed. Regression analyses predicting these performance factors revealed that in addition to a problem’s minimum moves three problem parameters were critical in determining the problem difficulty: goal position hierarchy, start position hierarchy, and number of solution paths available. The relative contributions of each of the characteristics strongly depended on which performance factor defined performance. We conclude that TOL problem performance is multifaceted, and that classifying problem difficulty using only the minimum moves necessary to solve the problem is inadequate.     

High regularities in eye-movement patterns reveal the dynamics of the visual working memory allocation mechanism

With only two to five slots of visual working memory (VWM), humans are able to quickly solve complex visual problems to near optimal solutions. To explain the paradox between tightly constrained VWM and impressively complex human visual problem-solving ability, we propose several principles for dynamic VWM allocation. In particular, we propose that complex visual information is represented in a temporal manner using only a few slots of VWM that include global and local visual chunks. We built a model of human traveling salesman problem solving based on these principles of VWM allocation and tested the model with eye-movement data. Exactly as the model predicted, human eye movements during traveling salesman problem solving have precise quantitative regularities with regard to both the general statistical pattern of attentional fixations and how they vary across individuals with different VWM capacities. Even though VWM capacity is very limited, eye movements dynamically allocate VWM resources to both local and global information, enabling attention to fine details without loss of the big picture.     

11~14岁超常儿童与普通儿童问题解决能力的发展比较

以北京市某中学和某小学11~14岁之间294名学生为被试, 其中超常儿童131人, 普通儿童163人。采用推箱子任务, 结合横向比较和纵向追踪数据, 从认知能力、元认知能力和认知效率三个维度来考察超常儿童与普通儿童问题解决能力的发展差异。结果发现超常儿童在问题解决能力的三个维度上均优于普通儿童, 两类儿童问题解决能力的发展模式不一致：超常儿童的问题解决能力发展先快后慢, 快速发展期在11~12岁半之间; 普通儿童的问题解决能力发展先慢后快, 快速发展期在12岁半~14岁之间。超常儿童与普通儿童的问题解决能力差异随年龄增大逐渐减小。     

午睡剥夺对科学发明问题解决中的原型启发效应的影响

选取生态效度较高的科学发明问题材料(分为高启发量与低启发量两类),采用“1对1”和“8对8”的“学习-测试”实验范式,考察午睡剥夺对科学发明问题解决中的原型启发效应的影响.结果发现:午睡剥夺处理、范式(“1对1”和“8对8”)和材料启发量高低在原型激活率和问题解决率上主效应均显著,午睡剥夺和范式以及启发量高低在问题解决率以及原型激活率上的交互作用不显著.这一结果说明,午睡剥夺影响科学发明问题解决中的原型启发效应,这种影响是通过对启发信息应用和原型激活两个加工过程的影响而实现的.     

A microgenetic study of insightful problem solving

An eight-session microgenetic study of acquisition of an insightful problem-solving strategy was conducted. A total of 35 second graders who did not use this insightful strategy initially were assigned to two groups that differed in the frequency of problems likely to facilitate discovery and generalization of the strategy. Children in the facilitative problems group discovered the insightful strategy earlier, used it more often subsequently, and transferred it more often to novel problems than did those in the nonfacilitative problems group. Children generally discovered the insightful strategy on the most facilitative items and extended it progressively to items on which its advantages were smaller but still substantial. The results indicate that experience outside the experimental situation, as well as experience inside the experimental situation, influences use of new strategies.     

Understanding and using principles of arithmetic: operations involving negative numbers

Previous work has investigated adults' knowledge of principles for arithmetic with positive numbers ( Dixon, Deets, & Bangert, 2001 ). The current study extends this past work to address adults' knowledge of principles of arithmetic with a negative number, and also investigates links between knowledge of principles and problem representation. Participants ( N = 44) completed two tasks. In the Evaluation task, participants rated how well sets of equations were solved. Some sets violated principles of arithmetic and others did not. Participants rated non-violation sets higher than violation sets for two different principles for subtraction with a negative number. In the Word Problem task, participants read word problems and set up equations that could be used to solve them. Participants who displayed greater knowledge of principles of arithmetic with a negative number were more likely to set up equations that involved negative numbers. Thus, participants' knowledge of arithmetic principles was related to their problem representations.     

大学生的自立人格与现实问题解决

为了探讨大学生的自立人格能否影响其现实问题解决的质量,对个人/人际高低分组的共30名大学生进行了现实问题解决访谈,结果发现:个人/人际自立高分组被试在访谈中解决个人/人际问题的质量显著高于低分组。为了探索自立人格与现实问题解决能力的关系,使用《青少年学生自立人格量表》和《大学生日常问题解决能力调查问卷》对101名有效被试进行了调查,结果发现:自立人格的多个维度都与日常问题解决能力的维度有显著相关,自立人格的多个相关维度是日常问题解决相关能力的有效预测变量。两个研究的结果支持了研究假设:自立人格利于个体对现实生活问题的解决;自立人格包含或涉及个体解决现实问题的能力因素。此外,自立人格影响现实生活问题解决的具体特点和机制还值得进一步研究。