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。     

A new secretary problem with rank-based selection and cardinal payoffs

We present an extension of the secretary problem in which the decision maker (DM) sequentially observes up to n applicants whose values are random variables X₁,X₂,…,X_n drawn i.i.d. from a uniform distribution on [0,1]. The DM must select exactly one applicant, cannot recall released applicants, and receives a payoff of x_t, the realization of X_t, for selecting the tth applicant. For each encountered applicant, the DM only learns whether the applicant is the best so far. We prove that the optimal policy dictates skipping the first sqrt(n)-1 applicants, and then selecting the next encountered applicant whose value is a maximum.     

Adolescent personality,problem behaviour and the quality of the parent–adolescent relationship

The relationship between adolescent personality and problem behaviour has been well established. However, relatively little attention has been given to the role of the social environment in the association between adolescent personality and problem behaviour. We tested the mediating and moderating role of the quality of the parent–adolescent relationship in the associations between adolescents' personality traits and problem behaviour. The sample consisted of 140 adolescents (11 to 18 years of age) and both their parents. Results supported a mediating role of the father/mother–adolescent relationship in the associations between Agreeableness, Emotional Stability, and Conscientiousness and externalizing problem behaviour. The father/mother–adolescent relationships did not mediate the associations between personality traits and internalizing problem behaviour. We also found support for a moderating role of the father/mother–adolescent relationships in the association between Emotional Stability and both externalizing and internalizing problem behaviours. Other moderated effects were specific for parent, personality trait and type of problem behaviour. Copyright © 2006 John Wiley & Sons, Ltd.     

亲子沟通问题与青少年社会适应的关系

从北京市一所普通中学、济南市一所重点中学选取887名初一至高三学生为被试,采取匿名的方式让被试报告与父母之间存在的沟通问题,以及自己的社会适应情况,以此探讨亲子沟通问题与青少年社会适应的关系.结果发现:(1)总体上,青少年报告的亲子沟通问题并不是很多.在9项亲子沟通问题中,排在第一位的问题是行为约束,排在最后一位的问题是缺乏信任.除高二和高三学生外,男女生,以及初一到高一学生的情况基本与总体相似;(2)男生报告的缺乏分享明显多于女生,而在9个方面的亲子沟通问题均存在明显的年级差异,且随年级升高呈现倒U型发展趋势,在缺乏分享方面,初二学生的得分最高,而其余8个方面均为初三的学生得分最高;(3)所有亲子沟通问题均与青少年的自尊呈显著负相关,与抑郁、社交焦虑和问题行为呈显著正相关;(4)亲子沟通问题的不同方面可以预测不同方面的青少年社会适应,但对自尊和抑郁的预测作用超过对社交焦虑和问题行为的预测作用.     

Productivity is not enough: A comparison of interactive and nominal brainstorming groups on idea generation and selection

The conclusion that nominal brainstorming groups outperform interactive brainstorming groups has been exclusively based on studies of idea generation. This study tested whether the productivity advantage of nominal groups would also result in better idea selection. Nominal and interactive groups performed a task that involved idea generation and selection. Idea generation and selection were strictly separated for half the groups, but were combined for the other half. Nominal groups generated more ideas than interactive groups, and the ideas generated by nominal groups were more original and less feasible than the ideas generated by interactive groups. However, there were no differences among conditions in quality of the selected ideas. Further, idea selection was not significantly better than chance. This suggests that high productivity in brainstorming is not sufficient to lead to better solutions.     

Group problem-solving among teachers: A case study of how to improve a colleague’s teaching

A case study of six teachers cooperating to improve a teacher’s teaching showed the dynamics of the group problem-solving process. An analysis of their verbal interactions showed the importance of shared understanding to successful group problem solving. The cooperative group structure helped members resolve cognitive conflicts and build group understanding. During this process, the members’ past teaching experiences and knowledge contributed to their conceptualization of the teacher’s teaching problems and their proposed solutions to improve the teacher’s teaching. Tsz Cheung Lam graduated from the Department of Educational Psychology at the Chinese University of Hong Kong in 2004 and obtained his Master of Education degree. His research interests lie primarily on cooperative learning and problem solving. As a primary school teacher in practice, he is now studying part-time for another master degree in data science at the Department of Statistics of the Chinese University of Hong Kong.     

学生提问与语文阅读理解能力的关系研究

随机选取北京市某中学初一-高二学生169名,以问卷法研究了他们对文章的提问能力与其阅读理解能力的关系,结果发现:(1)学生提问频次变化范围较广,不同水平提问数量存在显著的差异;(2)从分水平的角度来看,被试个体提问最高频次和总频次,由多到少都呈现出第二、第三、第一水平的顺序;(3)学生第三水平提问总数对第二水平阅读理解能力有显著预测作用;(4)学生第三水平提问总数对第三水平阅读理解能力有一定的显著预测作用。     

Sex differences in the association of math achievement with visual-spatial and verbal working memory: Does the type of math test matter?

Previous research on sex differences in mathematical achievement shows mixed findings, which have been argued to depend on types of math tests used and the type of solution strategies (i.e., verbal versus visual-spatial) these tests evoke. The current study evaluated sex differences in (a) performance (development) on two types of math tests in primary schools and (b) the predictive value of verbal and visual-spatial working memory on math achievement. Children (N = 3175) from grades 2 through five participated. Visual-spatial and verbal working memory were assessed using online computerized tasks. Math performance was assessed five times during two school years using a speeded arithmetic test (math fluency) and a word problem test (math problem solving). Results from Multilevel Multigroup Latent Growth Modeling, showed that sex differences in level and growth of math performance were mixed and very small. Sex differences in the predictive value of verbal and visual-spatial working memory for math performance suggested that boys seemed to rely more on verbal strategies than girls. Explanations focus on cognitive and emotional factors and how these may interact to possibly amplify sex differences as children grow older.     

Comparing functional analysis and paired-choice assessment results in classroom settings

The results of a functional analysis of problem behavior and a paired-choice assessment were compared to determine whether the same social reinforcers were identified for problem behavior and an appropriate response (time allocation). The two assessments were conducted in classroom settings with 4 adolescents with mental retardation who engaged in severe problem behavior. Each student's classroom teacher served as the therapist for all phases of assessment. The two assessment procedures identified the same social reinforcers for problem and appropriate behavior for 3 of 4 participants.