• 한국HCI학회:학술대회논문집
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• 2007.02b
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• pp.720-727
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• 2007

이미 많은 연구들을 통해 동질적인 집단에 비해 이질적인 구성원으로 이뤄진 집단이 더욱 창의적이며 상호 보완하여 시너지효과를 발휘한다는 것이 밝혀졌다. 그러나 기존 연구들은 결과에만 초점을 둘 뿐 각 과정과 단계에서 구성원이 겪는 고충과 불 만족감, 사기 저하 등과 같은 실질적으로 집단창의성을 저해하는 요인을 파악하려는 깊이 있는 접근은 미비한 실정이다. 따라서 본 연구는 집단을 이루는 구성원의 특성과 창의성과의 관계에 초점을 두어 개인이 가진 자신만의 독특한 성격 (Personality)이 집단에서 다른 구성원들과 만났을 때 어떠한 효과 또는 반용을 보이는가를 관찰하여 집단 내에서 개인이 가진 성격적 특성이 창의적인 시너지효과를 증대시킬 수 있는 창의적 집단 모델을 구성하고자 했다. 집단 구성원의 성격적 특질을 알아보기 위해 MBTI를 사용하였고 MBTI의 기질별 특성이 집단 창의성에 미치는 영향을 살며보고자 했던 본 연구 결과, 집단 창의성과 MBTI의 관계는 실제로 MBTI의 성향에 따라 다르게 나타남을 알 수 있었다. 각 성향별로 지난 장정을 적절히 조합했을 때에 집단은 집단을 이루는 구성원들에 의해 발전적인 방향으로 나아감을 알 수 있었는데, 이는 무작위로 구성된 집단이 각 개인의 능력을 저하시키는 가장 큰 요인임을 보여주는 것이라 할 수 있다.

• Communications of Mathematical Education
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• v.15
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• pp.287-292
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• 2003

본 연구는 중학생을 대상으로 협동 학습에서 사용하고 있는 기존의 집단 구성과는 달리 학생들의 학습 양식에 따라 집단을 구성하여 협동 학습의 효과성을 보이고자 하였다. 학습양식(Learning Style)에 따라 집단을 구성한 협동 학습의 결과는 다음과 같다. 첫째, 학습양식에 따라 구성한 협동 학습 집단( I, II, III, IV)이 일반학습 집단(V)에 비하여 수학 성취도에 있어서 유의한 효과를 보였다(p<.001). 둘째, 학습양식에 따라 구성한 협동 학습 집단( I, II, III, IV)이 일반학습 집단에 비하여 수학에 대한 긍정적인 태도로의 변화가 있었다(p<.001).

• Communications of Mathematical Education
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• v.13 no.2
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• pp.495-514
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• 2002

본 연구의 목적은 수학교실에서 의사소통 불안에 따른 이질 집단과 동질 집단으로 소집단 구성을 달리하였을 때 정의적 영역에서 소집단 협동학습 효과의 차이가 있는지 알아보는데 있다. 이러한 연구 목적을 달성하기 위해 다음과 같은 연구 문제를 설정하였다. 첫째, 의사소통 불안에 따른 동질 집단과 이질 집단간에 정의적 영역(수학적 태도, 자아존중감)에서 차이가 있는가? 둘째, 동질 집단과 이질 집단간의 비교에서 어느 집단의 불안 수준이 정의적 영역(수학적 태도, 자아존중감)에 더 긍정적인 효과가 있는가? 이러한 연구 문제를 해결하기 위하여 독립변인은 협동학습에서의 의사소통 불안에 따른 집단 구성 형태이고 종속변인은 정의적 영역(수학적 태도와 자아존중감)인 원인비교 연구 설계(casual-comparative research design)를 세워 원인비교 연구를 실시하였다. 본 연구의 결과로부터 다음과 같은 결론을 얻을 수 있다. 첫째, 의사소통 불안에 따른 집단 구성방법이 수학과 소집단 협동학습의 효과, 특히 자아존중감 향상에 영향을 끼치기 때문에, 효과적인 협동학습을 위해서 학생들의 의사소통 불안을 측정하여 이질 집단으로 구성할 필요가 있다. 둘째, 의사소통 불안에 따른 집단 구성을 했을 때 이질 집단의 불안 하위수준 학생들이 자아존중감 향상에 가장 큰 효과를 볼 수 있다. 결론적으로, 수학 교실에서의 의사소통 불안은 집단의 상호작용 행동에 영향을 준다고 말할 수 있고 의사소통 불안에 따른 이질 집단은 자아존중감 향상에 효과적인 집단 구성방법임을 시사한다.

• The Journal of the Korea Contents Association
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• v.16 no.11
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• pp.240-252
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• 2016

The purposes of this paper examines the extant to which congruence in leader and follower rating of LMX quality is related to organizational commitment, and perceptions of organizational politics(POPs). A conceptual model is introduced that identifies four combinations of leader and follower LMX ratings of Cogliser et al.(2009): balanced/low LMX(low leader and follower LMX), balanced/high LMX(high leader and follower LMX), follower overestimation(low leader LMX/high follower LMX), follower underestimation(high leader LMX/low follower LMX). The summary of results based on a sample of 236 matched pairs of leaders and followers in KOREA is as follows: First, balanced/high LMX and follower overestimation were associated with relatively high levels of affective organizational commitment, and perceptions of organizational politics. However, follower underestimation and balanced/low LMX was related to low levels of follower outcomes. In particular, follower underestimation and balanced/low LMX were significantly different from balanced/high LMX and follower overestimation. Second, perceptions of organizational politics was negatively related to affective organizational commitment in the four LMX relationship types. Especially, the negative relationship between POPs and organizational commitment was stronger for people who are low as compared with high in LMX quality. Theoretical and practical implications of our findings as well as directions for future research are provided.

• Environmental and Resource Economics Review
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• v.4 no.2
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• pp.291-305
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• 1995

본 논문은 지역간의 경쟁을 통한 환경재의 획득과정에 대해서 분석하였으며, 특히 경쟁의 과정에서 자발적 참여집단 (critical mass)의 존재가 경쟁의 결과에 미치는 영향에 초점을 맞추고 있다. 환경재에 대한 지역간의 경쟁(지대추구경쟁)은 Katz-Nitzan-Rosenberg(1990) 모형을 기초로하여 분석하였으며 지역집단간의 경쟁에 있어서, 구성원은 비협조적 쿠르노-내쉬(Cournot-Nash) 방식에 의해서, 그 자신의 이익(지대)을 획득하기 위한 경쟁을 벌이는 것으로 가정하였다. 어떤 지역집단이 환경재 획득경쟁에서 이길 확률은 궁극적으로 그 지역에 유치될 환경재의 크기(화폐가치로 환산한)에서 받는 영향의 정도 ${\alpha}$( 단. $0{\leq}{\alpha}{\leq}1$)의 상대적 크기에 비례하여 결정된다. 그러나 환경재획득경쟁에서 발생하는 고정비용 M의 규모가 커지면, 그것이 특정지역의 자발적 참여집단의 최소규모 상향조정을 요구하게 되어, 자발적 참여집단의 수가 경쟁에 결정적 영향을 미칠 가능성이 많게 된다. 특히 환경재로부터 받는 영향의 정도인 ${\alpha}$의 값이 작은 집단은 큰 집단에 비하여 항상 더 많은 자발적 참여집단의 구성원 수를 요구받게 되며, 고정비용 M의 값이 계속 커짐에 따라 이러한 최소한의 자발적 참여집단의 구성원수의 증가속도도 경쟁집단에 비하여 점점 더 커지게 된다.

• Journal of Science Education
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• v.41 no.2
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• pp.195-212
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• 2017

Small group learning is an educational approach to allow students to solve the problems and to achieve a common goal. Especially, small group learning in science education is one of the most important educational approaches and effective to ensure understanding of a topic. Small group learning consisting of three students in science education maximize student understanding and learning efficiency. However, It is reported that the effects of small group learning on achievement show different results, corresponding to different grouping methods(homogeneous/heterogeneous). This study investigated the effects of grouping method on difference of ecological niche of photosynthesis concepts. To achieve this, 1107 7th students were composed of homogeneous and heterogeneous groups classified into top, middle, and bottom levels. The photosynthesis units were divided into four categories: the photosynthesizing place, the substances of photosynthesis, required materials for the photosynthesizing, and environmental factors affecting photosynthesis. A questionnaire was composed by selecting concepts having a frequency of 4% or more based on prior studies on the change of the ecological status of photosynthesis. The questionnaire was scored in terms of relativity and understanding on each of the proposed concepts in the four categories. The result of this study is as set forth below. 1) There was an enhancement of learning the concept of science in small group classes consisting of 3 students. 2) To enhance the average upon composing of a group, it is proposed that the group should be formed homogeneously, and to reduce the deviation between the members, it is proposed that the group should be formed heterogeneously. Through this study, it is expected that specific studies verifying the difference or effect on the duplicity of results are conducted based on the composition of groups.

• Journal of The Korean Association For Science Education
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• v.24 no.6
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• pp.1063-1069
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• 2004

This study investigated the effects of grouping method in solving chemistry problems using Think-Aloud Paired Problem Solving (TAPPS). Three classes (125 students) of a co-ed high school in Seoul were randomly assigned to the control, the homogeneous TAPPS, and the heterogeneous TAPPS groups. Prior to the instructions, a test of awareness of metacognition was administered. In the treatment groups, students were grouped into either homogeneous or heterogeneous group on the basis of their pre-achievement levels, and worked in pairs on chemistry problems about chemical equation and stoichiometry. Students' analytical skill, problem solving ability, and awareness of metacognition were examined after the instructions. One-way ANCOVA results indicated that the scores of the homogeneous TAPPS group in the analytical skill test were significantly higher than those of the heterogeneous TAPPS group. However, there were no significant differences among the three groups in the problem solving ability and the awareness of metacognition.

• Journal of Gifted/Talented Education
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• v.24 no.2
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• pp.313-333
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• 2014

The purpose of this study was to examine self esteem and reactions on LMT projective technique to a group of scientifically gifted high school students and general high school students. For that purpose, 113 participants from scientifically gifted high school and general high school were asked to fill out self esteem questionnaire and draw a LMT. The results were analyzed by using SPSS.PASW18. The results are as follows: First, overall self esteem of gifted students were higher than general students. Second, reactions on LMT of gifted students and general students were examined. As a result, there were statistically significant differences in four items; integration of landscape composition, expression of distance and space, number of additional items, existence of doors and windows. The result of this study showed significant differences between the two groups in self esteem and LMT scores.

• Journal of the Korean School Mathematics Society
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• v.18 no.3
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• pp.281-309
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• 2015

The purpose of this study is provides an implication of further teaching learning process by analyze the common and difference and characteristic of mathematical self-efficiency between three peer tutoring groups discourse in the mathematical teaching leaning process that use peer tutoring. To achieve this goal, three groups formed that consist of one peer tutor who received a first grade of mathematic achievement and one peer student. Peer student of each group is divided into high grade, middle grade, low grade of mathematic achievement. Then analyze the discourse in the exponential function problem solving process. Based on the results of study, this paper provides a concrete example of merit of peer tutoring on the peer tutor. Result of study also provides a practical help to make a peer tutoring group by considering a difference of grades between peer tutor and peer student. Because there is a possibility of mutual discourse on the tutoring group that consist of similar grades.

• KDI Journal of Economic Policy
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• v.34 no.2
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• pp.1-15
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• 2012

We develop an identity choice model within the context of a stereotyping-cum-signaling framework. The model allows us to explore implications of the fact that, when individuals can choose identity, then the distribution of abilities within distinct identity groups becomes endogenous. This is significant because, when identity is exogenous and if the ability distributions within groups are the same, then inequality of group reputations in equilibrium can only arise if there is a positive feedback between group reputation and individual human capital investment activities (Arrow, 1973; Coate and Loury, 1993). Here we show that when group membership is endogenous then the logic of individuals' identity choices leads there to be a positive selection of higher ability individuals into the group with a better reputation. This happens because those for whom human-capital-investment is less costly are also those who stand to gain more from joining the favored group. As a result, ability distributions within distinct groups can endogenously diverge, reinforcing incentive-feedbacks. We develop the theoretical framework that can examine the positive selection and the endogenous group formation. The model implies that inequality deriving from stereotyping of endogenously constructed social groups is at least as great as the inequality that can emerge between exogenously given groups.