• Journal of the Korean Data and Information Science Society
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• 제17권2호
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• pp.619-631
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• 2006

When X and Y have independent Poisson distributions, we develop a Bayesian one-sided testing procedures for the ratio of two Poisson means. We propose the objective Bayesian one-sided testing procedures for the ratio of two Poisson means based on the fractional Bayes factor and the intrinsic Bayes factor. Some real examples are provided.

• Communications for Statistical Applications and Methods
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• 제13권3호
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• pp.551-566
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• 2006

In this paper, we consider a Bayesian model selection for the intraclass correlation coefficient in familiar data. In particular, we compare two nested models such as the independence and intraclass models using the reference prior. A criterion for testing is the Bayesian Reference Criterion by Bernardo (1999) and the Intrinsic Bayes Factor by Berger and Pericchi (1996). We provide numerical examples using simulation data sets for illustration.

• 한국데이터정보과학회:학술대회논문집
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• 한국데이터정보과학회 2006년도 PROCEEDINGS OF JOINT CONFERENCEOF KDISS AND KDAS
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• pp.295-306
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• 2006

When X and Y have independent Poisson distributions, we develop a Bayesian one-sided testing procedures for the ratio of two Poisson means. We propose the objective Bayesian one-sided testing procedures for the ratio of two Poisson means based on the fractional Bayes factor and the intrinsic Bayes factor. Some real examples are provided.

• The Korean Journal of Pain
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• 제24권2호
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• pp.69-73
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• 2011

Although the incidence of partial-thickness rotator cuff tears (PTRCTs) was reported to be from 13% to 32% in cadaveric studies, the actual incidence is not yet known. The causes of PTRCTs can be explained by either extrinsic or intrinsic theories. Studies suggest that intrinsic degeneration within the rotator cuff is the principal factor in the pathogenesis of rotator cuff tears. Extrinsic causes include subacromial impingement, acute traumatic events, and repetitive microtrauma. However, acromially initiated rotator cuff pathology does not occur and extrinsic impingement does not cause pathology on the articular side of the tendon. An arthroscopic classification system has been developed based on the location and depth of the tear. These include the articular, bursal, and intratendinous areas. Both ultrasound and magnetic resonance image are reported with a high accuracy of 87%. Conservative treatment, such as subacromial or intra-articular injections and suprascapular nerve block with or without block of the articular branches of the circumflex nerve, should be considered prior to operative treatment for PTRCTs.

• 지식경영연구
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• 제17권3호
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• pp.137-159
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• 2016

Although prior studies suggest that transformational leadership and servant leadership fuel followers' creativity, there is a few study on leadership style and followers' personality interaction. Based on regulatory focus theory, this study believe that interaction impacts of leadership styles and followers' regulatory focus differed in promotion focus and prevention focus employees' creativity. To strengthen causal process and rule out alternative results, this study conducted an experimental study using field employees. Participant were randomly assigned to four conditions (transformational leadership ${\times}$ promotion focus), (transformational leadership ${\times}$ prevention focus), (servant leadership ${\times}$ promotion focus), (servant leadership ${\times}$ prevention focus). The major results of this study suggest that (1) transformational leadership was positively related to promotion focus followers' intrinsic motivation and creativity, and was negatively related to prevention focus followers' intrinsic motivation and creativity. (2) Servant leadership, on the other hand, was positively related to promotion focus and prevention focus followers' motivation and creativity. (3) Intrinsic motivation mediated the relationship between interaction effects of leadership style and follower's regulatory focus style and individual creativity. The results of this study demonstrated a remarkable differential impact based on a simple manipulation inducing feeling or thinking of a responsive situation. This research, measuring interaction impact of leadership and followers' regulatory focus in an experimental context, expands the leadership style and regulatory focus literature and provides future directions on leadership role in personality-related research domains.

• 한국의류학회지
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• 제46권6호
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• pp.987-1003
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• 2022

This study explores the effect of experiential value of AR fashion platform on platform preference. Based on the SOR theory, the effects of visual appeals, entertainment, service excellence, and efficiency on platform attitudes, mediated by intrinsic enjoyment and escapism, are tested. The participants respond to the questions after watching the video clip, using an AR fashion platform. A total of 252 data is analyzed using SPSS 26.0 for descriptive statistics and reliability analysis and AMOS 26.0 for confirmatory factor analysis and structural equation modeling. The results show visual appeals, entertainment, and efficiency influence platform preference, mediated by intrinsic enjoyment. Entertainment also influences platform preference, mediated by escapism. The moderating effect of the AR service pre-experience is also explored. For the group with the AR service experience, entertainment and efficiency has a positive effect on intrinsic enjoyment, leading to AR platform preference. For the group without an AR service experience, only entertainment influences the AR platform preference, mediated by intrinsic enjoyment; however, there are no factors which increase escapism. The findings of this study contribute to find the marketing directions for the AR service users, by offering appropriate experiential values based on their prior AR experience.

• 산경연구논집
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• 제14권7호
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• pp.19-26
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• 2023

Purpose: This study explores the intrinsic and extrinsic stress factors that affect employees' job satisfaction. The study reviews the literature on three intrinsic and three extrinsic stress factors that influence the job satisfaction level of employees, establishing the various research findings on the factors and finding the relevant links that such findings have to current research. Research design, data and methodology: The present researcher collected the relevant prior studies via literature content approach that was used by numerous previous works. The researcher transcribed the data gathered from the participants. The next analyst would code the different features of data systematically across the entire set of data, thereby collecting the relevant data for each of the codes. Results: The investigation suggests six stress factors to be connected to job satisfaction, such as Hours of Work Employee Job Satisfaction, Communication and Employee job Satisfaction, Leadership Style Employee Job Satisfaction, Competition Employee Job Satisfaction, Career Development Opportunities Employee Job Satisfaction, Strikes and employee Job Satisfaction Conclusions: This research concludes that organizations with proper communication channels will certainly influence their employees positively and hence give them job satisfaction. Overall, this qualitative research has found that intrinsic and extrinsic factors influence the job satisfaction level of employees in a workplace.

• Journal of Information Technology Applications and Management
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• 제15권4호
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• pp.221-245
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• 2008

Recently, mobile internet technologies are enabling the possibility of radically new computing services which can share information and communicate with others on the move. In this situation, prior studies have attempted to identify of what factors make people use mobile internet. However, prior researches focused on investigating the factors affecting users' adoption to Mobile Internet. In order to offer beneficial materials to mobile internet companies, we investigated important factors to increase mobile users' value from the viewpoints of customer. In particular, this study was progressed how characteristics of mobile contents affect users' intrinsic attributes and how perceived users' network effects affect users' value in the mobile computing environments. To empirically test proposed hypotheses, we have analyzed 285 survey data gathering from mobile internet users and verified hypotheses by using SEM (structural equation modeling). Based on the results of this study, we found that content accessibility and content quality have significant impacts on users' intrinsic attributes such as perceived usefulness and perceived enjoyment. In addition, this study also revealed that perceived usefulness and perceived enjoyment were positively related to users' emotional value. Moreover, this study found that perceived users' network effects could affect users' monetary value by mediating expected benefits. Based on our findings, we can understand that this perspective can provide a deeper understanding of the mobile users' value adoption by bridging the gap between mobile internet studies and actual practice.

• 산경연구논집
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• 제9권7호
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• pp.71-82
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• 2018

Purpose - This study examined the effects of intrinsic and extrinsic motivation on employee creativity. Past research has consistently shown that intrinsic motivation is positively related to creativity. Yet conflicting results have been reported about the relationship between extrinsic motivation and creativity. To explore the reason why extrinsic motivation can either help or hurt creativity, we examined the role of contingent rewards as a moderator and tested whether either tangible or intangible rewards contingent upon creative performance significantly impact the relationship between extrinsic motivation and creativity. Research design, data, and methodology - Survey data was collected from employees working for diverse organizations in Korea through online research firm. Only employees who reported their job or organization provided opportunities to use their creativity were allowed to continue the survey. Out of 305 initial responses collected, those with too much missing data were deleted, which finally left 278 responses for statistical analyses. To examine the validity of the measurements, confirmatory factor analysis was first conducted. Next, to test the hypothesized relationships, multiple hierarchical regression analyses were conducted. Results - As hypothesized, both intrinsic and extrinsic motivation had positive effects on creativity. It was shown that contingent rewards did not influence the positive relationship between intrinsic motivation and creativity, but did significantly moderate the relationship between extrinsic motivation and creativity in a way that tangible rewards strengthened the relationship while intangible rewards mitigated the same relationship. Conclusions - This research enhances our understanding on the relationship between motivation type, rewards, and creativity. Intrinsically motivated employees showed a high level of creativity regardless of whether rewards were expected or not. In contrast, extrinsically motivated employees showed more or less creative behavior depending on whether they were expected to have tangible or intangible rewards. As extrinsic motivation is typically associated with tangible rewards such as pay, promotion, etc., tangible rewards were seen to be more effective in promoting creative performance from extrinsically motivated employees than intangible rewards. Our findings make a significant theoretical contribution to reconcile prior inconsistent findings. Furthermore, they provide useful insights for managers and organizations into developing effective strategies for facilitating employee creativity.

• Journal of the Korean Data and Information Science Society
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• 제12권1호
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• pp.41-50
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• 2001

독립이면서 지수분포를 따르는 K개 모집단의 평균차이에 대한 가설 검정방법으로 Beregr와 Perrichi (1996, 1998)가 제안한 내재적 베이즈 요인을 이용한 베이지안 방법을 제안한다. 이 때 모수에 대한 사전분포로는 무정보적 사전분포를 사용한다. 모의실험을 통하여 제안한 검정방법의 유용성을 알아본다.