• 공학교육연구
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• 제22권3호
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• pp.32-40
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• 2019

This paper deals with the effects of teamwork competence on problem solving ability through the mediating effect of creative personality for the engineering students. For this purpose, a regression-based statistical mediation analysis has been performed for a simple mediation model in which teamwork competence and problem solving ability were treated as independent and dependent variables respectively, and creative personality was included as a mediation variable. The analysis results showed that the teamwork competence has direct effect on the problem solving ability as well as indirect effect through the creative personality. This result implies that the problem solving ability can be improved directly by improving the teamwork competence, and moreover, it can be further improved indirectly or through the mediation effect by improving the creative personality. Thus, in order to develop excellent problem solving ability, it is necessary to form team members in a balanced way between teamwork competence and creative personality in the team-based learning.

• 한국산학기술학회논문지
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• 제15권10호
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• pp.6176-6186
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• 2014

본 연구는 간호학생의 간호 수기술 향상을 위해 사전 동영상 학습방법을 활용한 기본간호학 실습 교육평가방법의 학습동기, 학업적 자기효능감 및 문제해결과정을 파악하고자 하는 상관성 조사연구였다. 학습동기와 학업적 자기효능감은 간호과 선택동기, 전공만족도, 기본간호학실습 만족도, 사전 동영상 시청의 도움정도, 체크리스트 활용 실기평가의 적절성에 따라 통계적으로 차이가 있었다. 문제해결과정은 전공만족도, 기본간호학실습만족도, 사전 동영상 시청의 도움 정도, 체크리스트 활용 실기평가의 적절성에 따라 통계적으로 차이가 있었다. 학습동기는 학업적 자기효능감 및 문제해결과정과, 학업적 자기효능감은 문제해결과정과 유의한 정적상관관계를 나타냈다. 결론적으로, 사전 동영상 학습방법을 활용한 기본간호학실습 교육평가방법은 간호학생의 학습동기, 학업적 자기효능감 및 문제해결과정과 관련이 있었다.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제22권4호
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• pp.205-221
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• 2019

이 연구는 통계적 문제해결 과정 중에 설문지 질문 생성 단계에서 나타나는 예비초등교사들의 통계적 추론을 조사하고 이것이 이후 단계들에서의 활동에 어떻게 영향을 미치는지를 분석하는 데 목적을 두었다. 이를 위해 24개 조의 교육대학교 2학년 학생들 80명이 통계적 문제해결 과정을 직접 실행하고 통계 보고서를 작성하였으며, 그 중 22개 조의 보고서를 분석하였다. 분석 결과, 설문지 질문 생성 단계에서 예비교사들의 9가지 통계적 추론이 확인되었으며, 특히 그 중 질문 명확화 지향 추론과 변이 기반 추론은 기존 연구에서 보고되지 않았던 추론이었다. 또한, 설문지 질문 생성 단계에서의 통계적 추론이 이후 단계의 활동에 미친 영향을 알아보기 위해 자료 분석 및 결론 단계에서 예비교사들이 보고서에 기술하였던 어려움 및 이슈를 확인하였다. 그 결과, 예비교사들의 어려움이 설문지 질문 생성 과정에서의 모집단 관련 추론, 범주 수준 추론, 표준화 추론, 질문의 일관성 지향 추론, 질문 명확화 지향 추론과 관련이 있는 것으로 나타났다. 그동안 선행연구에서 질문 생성하기 단계에 크게 주목하지 않았다는 점에 비추어보면, 본 연구 결과는 질문 생성 단계에서 나타나는 다양한 통계적 추론에 좀 더 주목할 필요가 있다는 점과 질문 생성 단계에서 적절한 통계적 추론이 이루어지도록 하기 위한 교수 방안들을 논의할 필요가 있다는 점을 시사한다.

• 공학교육연구
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• 제23권6호
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• pp.17-26
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• 2020

In this paper, the effect of daily creativity of engineering students on problem-solving ability is addressed through the dual mediating effect of teamwork competency and self-directed learning ability. To this end, a regression-based statistical mediation analysis has been performed on the dual mediation model in which daily creativity and problem solving ability were treated as independent and dependent variables respectively, and teamwork competence and self-directed learning ability were included as mediation variables. The analysis result confirmed that the daily creativity has direct effect on the problem-solving ability, as well as indirect effects through teamwork competence and self-directed learning ability. In particular, the serial mediating effect of teamwork competency and self-directed learning ability was also confirmed to be statistically significant in the relationship between daily creativity and problem-solving ability. This verifies that problem-solving ability can be improved not only directly by improving daily creativity but also indirectly by improving teamwork competence and self-directed learning ability. In addition, teamwork competency showed greater indirect effect on problem-solving ability than self-directed learning ability, so increasing teamwork competency has a more significant effect on improving problem-solving ability than increasing self-directed learning ability. Therefore, in order to develop better problem-solving ability, it is necessary to identify and improve the learners' teamwork competency first and to strive to create an environment where learners can solve problems based on mutual trust with their teammates.

• Communications for Statistical Applications and Methods
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• 제8권2호
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• pp.465-471
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• 2001

Randomized response technique is a survey technique for eliminating evasive answer bias. But this technique has a problem. This procedure suffers from linguistic expression in randomizing device. Thus for solving the problem, in this paper, we suggested the randomized response technique using fuzzy logic.

• 수산해양교육연구
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• 제25권4호
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• pp.973-990
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• 2013

On this study, the survey was conducted for the married female immigrants at work living in the district of Pusan, Changwon and Gimhae in order to analyze the level of the key competencies based on the differences of their ages, their final educational background, the period of their staying in Korea, their Korean language competence, jobs and the employment status in their native countries. As the result of the analysis, firstly, depending on their Korean language competence and jobs, there were meaningful differences among the groups in the aspects of the nine key competencies including communication, numeracy, problem solving, self-management and development, resource use, human relationship, information, technology, and organization skills, with the statistical significance level of .05. Secondly, depending on their final educational background, there were meaningful differences among the groups in the other aspects of eight key competencies except problem solving, with the statistical significance level of .05. Thirdly, depending on the employment status in their native countries, there were meaningful differences among the groups in the aspects of the five competencies including communication, numeracy, problem solving, resource use and organizational skills with the statistical significance level of 0.05. Fourthly, depending on the period of staying in Korea, there is difference only in the aspect of communication. Fifthly, depending on their ages, there were no meaningful differences among the groups.

• 대한수학교육학회지:학교수학
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• 제19권4호
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• pp.731-749
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• 2017

본 연구의 목적은 현재 우리가 사용하고 있는 수학교과서가 학생들의 통계적 소양을 함양시킬 수 있도록 구성되어 있는지를 알아보는데 있다. 이를 위하여 맥락의 4가지 유형과 통계적 문제해결 과정을 토대로 2009 개정 수학과 교육과정에 따른 9종의 중학교 3학년 수학교과서의 통계단원의 문항을 분석하였다. 분석결과 맥락의 4가지 유형 중에 개인적 맥락의 유형에 해당하는 문항이 67%로 가장 많은 비중을 차지하였고, 통계적 문제해결 과정 중에서는 자료 분석 과정이 72.8%로 가장 많은 것으로 나타났다. 본 연구의 결과에 의하면 다양한 맥락을 활용한 문항을 통해 통계의 필요성을 인식하고, 자료를 수집하는 과정부터 제시된 자료에서 합리적인 결론을 추측해보는 활동을 통하여 통계적 소양을 함양시킬 수 있는 문항들이 더 포함되어야 함을 알 수 있었다.

• 대한통합의학회지
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• 제11권1호
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• pp.71-78
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• 2023

Purpose : This study was purposed to analyze the effectiveness of PBL (Problem-Based Learning) classes and to derive class improvement plans. Methods : The subjects of the study were 48 students who took the 4th grade clinical dental hygiene course at S University located in Chungcheongnam-do of South Korea in 2021. A single-group pre and post experimental study was designed to verify whether there were significant changes in the research variables of students who participated in the class to which problem-based learning was applied. A paired-sample t-test was conducted for the collected data of 46 respondents. Results : As a result, the degree of improvement in problem clarification, cause analysis, and alternative development among the five sub-areas of problem-solving ability was statistically significant. This means that the problem-based learning class positively affects dental hygiene major students' ability to clarify problems, the ability to analyze causes to collect and analyze information, and the ability to develop alternatives to make decisions, thereby improving overall problem-solving abilities. However, the improved post-score was not statistically significant in the planning/execution and performance evaluation of the remaining two subdomains. In addition, post-scores of the leader aspect, opinion exchange, opinion evaluation, and opinion integration, which are sub-domains of collaborative self-efficacy, all showed great statistical significance. Problem-based learning improved the collaborative efficacy of dental hygiene major students overall by positively influencing the ability to lead a team, exchange and evaluate each other's views, and constructively integrate different views. Conclusion : It was found that both the subject's problem-solving ability and cooperation efficiency improved under the influence of problem-based learning. On the other hand, implications for improvement of the future class such as the necessity of supplementing strategies to promote planning and execution ability for problem solving, and ability to evaluate problem solving performance was suggested.

• Journal of Computational Design and Engineering
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• 제3권4호
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• pp.295-311
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• 2016

This paper addresses to the flowshop scheduling problem with blocking constraints. The objective is to minimize the makespan criterion. We propose a hybrid combinatorial particle swarm optimization algorithm (HCPSO) as a resolution technique for solving this problem. At the initialization, different priority rules are exploited. Experimental study and statistical analysis were performed to select the most adapted one for this problem. Then, the swarm behavior is tested for solving a combinatorial optimization problem such as a sequencing problem under constraints. Finally, an iterated local search algorithm based on probabilistic perturbation is sequentially introduced to the particle swarm optimization algorithm for improving the quality of solution. The computational results show that our approach is able to improve several best known solutions of the literature. In fact, 76 solutions among 120 were improved. Moreover, HCPSO outperforms the compared methods in terms of quality of solutions in short time requirements. Also, the performance of the proposed approach is evaluated according to a real-world industrial problem.

• 한국지구과학회지
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• 제23권2호
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• pp.147-153
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• 2002

Reasonable and reliable assessment method is one of the most important issues in science education, Partial credits method is an effective tool for assessing students' science inquiry problem solving. The purposes of this study were to classify the Problem solving types based on the analysis of the thinking Process, and how much the related science concept and the science process skills were used in solving science inquiry problems, and to describe the possibility and rationality of the assessment method that gives partial credit 128 high school seniors were selected and their answers were analyzed to identify science concepts they used to solve each problem, and the result was used as the criterion in the scientific concept test development. Also, to study the science inquiry problem solving type, 152 high school seniors were selected, and protocols were made from audio-taped data of their problem solving process through a think-aloud method and retrospective interviews. In order to get a raw data needed in statistical comparison of reliability, discrimination and the difficulty of the test and the production of the regression equation that determines the ratio of partial credit, 640 students were selected and they were given a science inquiry problem test, a science process skills test, and a scientific concept test. Research result suggested it is more reasonable and reliable to switch to the assessment method that applies partial credit to different problem solving types based on the analysis of the thinking process in problem solving process, instead of the dichotomous credit method.