• Journal of Convergence for Information Technology
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• v.8 no.6
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• pp.15-20
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• 2018

This study aimed to find an effective intervention measure through establishing the correlation between self-regulation (control over life style) and height growth through neuro-feedback training. 40 elementary students in grades two to four with height growth programs (20 experimental group students, 20 control group students) were examined for the changes before and after undergoing neuro-feedback training. The experiment lasted for three months with one 30-minute training session two times a week. After analyzing the differences in self-regulation among the control group with no neuro-feedback training and the experimental group with neuro-feedback training, the differences in height growth were analyzed. First of all, there were positive changes in self-regulation of the experimental group compared with the control group. Secondly, the experimental group showed larger changes in height growth. In conclusion, neuro-feedback training had positive effects upon the self-regulation that adjusts the acquired factors of height growth, which led to positive effects.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.21 no.6
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• pp.9-15
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• 2021

The current study examined the cyber learners' perceptions of the educational usefulness of Grammarly, an online grammar checker, after it was used to provide feedback to cyber university students in a situation where the instructor could not provide sufficient feedback on their written work in English. The survey results, revealed that the majority of learners had positive attitudes to the usefulness of Grammarly. In particular, the feedback immediately available whenever needed was regarded as helpful in improving English sentences, and most learners were highly satisfied with the amount of the feedback provided by Grammarly. It was also found that Grammarly had positive effects in terms of the affective domains, helping learners to improve their interest and confidence in English writing. In particular, Grammarly was found to be effective in reducing writing anxiety in English, one of the main factors negatively affecting writing performance in English. However, along with these positive results, limitations such as inaccurate feedback and inadequate explanation of errors were also found. Therefore, when Grammarly is used for English education, it is necessary to conduct multifaceted research to develop effective teaching methods that can minimize the problems that may arise from these limitations.

• Journal of Digital Convergence
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• v.16 no.5
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• pp.469-476
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• 2018

The purpose of this study was to examine the relations and analyze the mediation effect that exists between the feedback types by professors of university physical education and self-efficacy and sports continuance. The sampling method was used to survey physical education university students from three different universities located in the Greater Seoul Metropolitan Area. 309 samples were ultimately selected as valid samples. Data processing was carried out by using SPSS 18.0 and AMOS 18.0. The fidelity of the whole model was assessed through this process and then the theory was tested. The results were as follows. Firstly, if the perceived feedbacks by the professor were complimentary/encouragement and performance knowledge/positive nonverbal feedbacks it had a positive effect. Negative nonverbal perceived feedback had a negative effect forecast. Secondly, complimentary/encouragement perceived feedbacks by the professor did not have a meaningful impact on sports continuance index. Performance knowledge/positive nonverbal feedback resulted in static effect while negative nonverbal feedback had a negative effect. Lastly, self-efficacy served a meaningful mediation role in the relation between negative nonverbal feedback by the professor and sports continuance.

• Science of Emotion and Sensibility
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• v.12 no.4
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• pp.531-544
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• 2009

In the past, objective usability was one of the most important aspects when user used system. But nowadays user's subjective experiences are getting more critical element than objective usability in HCI(human-computer interaction). Most people own their mobile phone and use it frequently these days. It is especially important to make user's subjective experiences more positive when using devices like mobile phones people frequently carry and interact with. This study investigates whether the interfaces which express the emotion give more positive experiences to users. Researchers created mobile phone prototypes to compare the effect of mechanical melody feedback(the major auditory feedbacks on mobile phones) and emotional voice feedback(recorded human voice). Participants experienced four kinds of mobile phone prototypes(no feedback, mechanical melody feedback, emotional voice feedback and dual feedback) and evaluated their experienced usability, hedonic quality and preference. The result suggests that person's perceptional fun and hedonic quality were getting increased in the phone which gave the emotional voice feedback than the mechanical melody feedback. Nevertheless, the preference was evaluated lower in the emotional voice feedback condition than the others.

• Korean Security Journal
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• no.13
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• pp.91-112
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• 2007

The purpose of this study is to identify effect of superior leadership style in private security service on job satisfaction. The survey research tool was a questionnaire. The subjects of this study were selected from the population of private security service employee's and sampled by using convenience sampling. Data obtained from 448 athletes were used. Questionnaire was used as a tool to attain the purpose of this study, SPSS 12.0 program was used to analyze the data, and statistical tests including correlation analysis and multiple regression analysis were conducted at significance level of p<.05. The results of this study were as follows. First, the democratic behavior, affirmative feedback, training and direction and social support in leadership style have a significant effect on a satisfaction of relation with supervisor. Second, the democratic behavior, affirmative feedback and training and direction in leadership style have a significant effect on a satisfaction of relation with coworkers. Third, the democratic behavior, affirmative feedback and training and direction in leadership style have a significant effect on a satisfaction of work. Fourth, the democratic behavior and authoritative behavior in leadership style have a significant effect on a satisfaction of pay. Finally, the democratic behavior, affirmative feedback and training and direction in leadership style have a significant effect on a satisfaction of promotion opportunity.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.11a
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• pp.31-34
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• 2005

디지털 이미지의 양이 증가함에 따라 원하는 이미지를 정확하고 빠르게 찾을 수 있는 방법의 필요성이 증가하고 있다. 이미지 검색 방법으로는 이미지의 색상이나 명암과 같은 시각적 특성을 검색 조건으로 이용하는 내용 기반 검색과 이미지를 설명하는 키워드를 검색 조건으로 이용하는 키워드 기반 검색이 있다. 하지만 이러한 방법만으로는 사용자가 원하는 이미지를 정확하게 찾기 힘들다는 문제점이 제기되어 왔다. 따라서 최근에는 검색 도중 사용자의 응답을 받아 사용자의 요구를 파악함으로써 향상된 검색 결과를 제공하는 적합성 피드백에 대한 연구가 많이 진행되고 있다. 하지만 적합성 피드백을 이용하는 방법들도 원하는 결과를 얻기 위해서는 여러 번의 피드백을 필요로 하고 질의 수행이 완료된 후에는 얻어진 피드백 정보를 재사용하지 못한다는 단점이 있다. 따라서 본 논문에서는 이미지에 키워드를 연결한 후 사용자의 피드백 정보를 반영하여 키워드의 신뢰도를 조절함으로써 키워드 기반 이미지 검색의 정확도를 높일 수 있는 모델을 제안한다. 제안된 모델에서는 사용자로부터 피드백을 받은 이미지뿐만 아니라 긍정적 피드백을 받은 이미지들이 공통적으로 가지는 시각적 특성과 유사한 시각적 특성을 가지는 다른 이미지들까지도 키워드의 신뢰도를 조정함으로써 좀 더 빠른 시간 내에 검색 결과의 정확도를 높이도록 한다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.5
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• pp.3220-3229
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• 2015

This study analyzed the effect of team feedback environment on feedback-seeking behavior, and further explored how feedback-seeking behavior led to the feeling of thriving at work and team commitment. Also, we examined the moderating effect of self-efficacy on the relationship between team feedback environment and feedback-seeking behavior. Using survey data from 201 workers employed in various industries in Korea, we found that team feedback environment was positively related to feedback-seeking behavior, and that the relationship was moderated by self-efficacy. In addition, feedback-seeking behavior was positively associated with the feeling of thriving at work and team commitment. The result suggests the importance of feedback-seeking behavior in improving performance as well as work attitude and energy. The result also emphasizes the critical role that team feedback environment plays, and the need to find ways to nurture the environment that fosters feedback seeking and giving.

• Korean Journal of School Psychology
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• v.17 no.3
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• pp.287-306
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• 2020

The purpose of this study was to investigate the effect of motivation promotion on task performance. Unlike most previous studies that have used survey methods, this study examined the effects of motivation promotion on arithmetic and linguistic task performances under experimental conditions. Effort-inducing instructions and positive feedbacks were used to promote participants' motivation. Experiments 1 and 2 examined the effect of effort-inducing instructions and positive feedback on participants' autonomous selection of task difficulty when performing arithmetic and linguistic tasks. The results of the both experiments showed that the experimental group which received effort-inducing instructions and positive feedback chose more difficult task than the control group did. Experiment 3 examined whether motivation promotion enhances task performance and task persistence. The experimental group was more accurate and persistent than the control group. The results of the current study offer experimental evidence suggesting that activating intrinsic motivation through motivation promotion improves attitudes toward tasks and task performance.

• Journal of The Korean Association For Science Education
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• v.21 no.1
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• pp.22-29
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• 2001

The purpose of this study is to investigate the effects of lessons adopting portfolio assessment regarding feedback on elementary school student's scientific knowledges, inquiry abilities and their perceptions of it. For this study, two classes of 5th grade elementary school in suburb were selected. As an experimental group, one class was selected to apply the lessons adopting portfolio assessment regarding feedback, and the other class as a control group was selected to apply the lessons adopting portfolio assessment without feedback. The investigator taught and assessed both group students. The results showed a significant difference in scientific knowledge between the experimental group and the control group (p<.05). More detailed analysis of scientific knowledge found that the feedback effect was statistically positive in the memory and the understanding domain, but there was no effect in the application domain. No statistical difference was identified in inquiry abilities. The results of the questionnaire on the perceptions of portfolio assessment showed that students of the experimental group had higher positive responses on the 'perception about the effects of lesson' and on the 'perception in scientific attitudes' than the control group. However, the control group students had higher positive responses on the 'perception about self-evaluate of their own portfolio' and the 'perception about need of feedback' than the experimental group.

• Proceedings of the KAIS Fall Conference
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• 2011.05b
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• pp.881-883
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• 2011

이 연구는 뉴로피드백 훈련을 통하여 유아들의 습득도에 미치는 영향을 개인이 지닌 뇌신경 생리학적 지표인 뇌파 측정을 이용하여 연구 하여 보았다. 대상자는 2010년 3월에서 2010년11월까지 S시 W 유치원 원아 52명(실험군 26명, 대조군 26명)을 기준으로 선정한 자료이다. 훈련 전과 후의 뇌기능 변화는 시계열 선형 분석을 통하여 비교하였으며 연구 검증 결과, 뉴로피드백 훈련을 적용한 원아들 에서 뇌기능과 습득도 척도에서 유의미한 차이를 보였다. 이 결과는 전전두엽 뉴로피드백 훈련이 유아들의 뇌기능의 발달과 습득도에 긍정적인 영향을 미쳤다고 본다.