• Title/Summary/Keyword: 통계 검증지표

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Analysis of Vulnerable Cooperation in Internal Control System on Characteristics and Earning Management (내부회계관리제도 지적기업의 특성과 이익조정에 관한 분석)

  • Kim, Jin-Sep
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.10 no.6
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    • pp.1353-1360
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    • 2009
  • This study examines the effects of internal control system and Analysis of characteristics and Earning management in Vulnerable Cooperation. During research period 2005${\sim}$2007, Purpose of this study is to examines whether financial characteristics has exist or not. Second, Earning management also. As a result of analysis are as follows, First T-test and logistic regression has found explanatory with stastical significance about CURRENT, RNPS, and DEPT. Second, DA of Vulnerable Cooperation is significantly higher than Normal cooperation.

An Analysis of Effects of Travel Speed Using the Safety Facilities in the School Zones (어린이 보호구역내 교통안전시설이 구간통행속도에 미치는 효과 분석)

  • Lee, Ho-Won;Joo, Doo-Hwan;Hyun, Cheol-Seung;Kim, Dong-Hyo;Park, Boo-Hee;Lee, Choul-Ki
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.11 no.3
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    • pp.124-132
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    • 2012
  • There is high probability of children's traffic accidents. Because their physical, mental attribute are weak. Major part of the accidents happen during walking. Above all, jaywalking is the biggest traffic accident reason. Many traffic accidents take place on the road to school or near the home area. So Ministry of Public Administration and Security legislated children safeguard zone since 1995. But a study are inadequate the safety facilities on the effectiveness verification in the school zone. Therefore, this study aims to analyze the effectiveness of safety facilities. The vehicle speed is a direct correlation traffic accident. So in this study, the MOE(Measure of Effectiveness) is average travel speed in the school zone. The results shows that hump, rised pedestrian crossing has an effect.

The Classification of Forest Cover Types by Consecutive Application of Multivariate Statistical Analysis in the Natural Forest of Western Mt. Jiri (다변량 통계 분석법의 연속 적용에 의한 서부 지리산 천연림의 산림 피복형 분류)

  • Chung, Sang Hoon;Kim, Ji Hong
    • Journal of Korean Society of Forest Science
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    • v.102 no.3
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    • pp.407-414
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    • 2013
  • This study was conducted to classify forest cover types using the multivariate statistical analysis in the natural forest of western Mt. Jiri. On the basis of the vegetation data by point quarter sampling, the adopted analytical methods were species-area curve (SAC), hierarchical cluster analysis (HCA), indicator species analysis (ISA), and multiple discriminant analysis (MDA). SAC selected the outlier tree species which was likely to have no influence on the classification of forest cover types, excluded from all analytical process. Based on forest vegetative information, HCA classified the study area into 2 to 10 clusters and ISA indicated that the optimal number of clusters were seven. MDA was taken to test the clusters that classified with HCA and ISA. The seven clusters were classified appropriately as overall classification success were 91.3%. The classified forest cover types were named by the ratio of the dominant species in the upper layer of each cluster. They were (1) Quercus mongolica Pure forest, (2) Mixed mesophytic forest, (3) Q. mongolica - Q. serrata forest, (4) Abies koreana - Q. mongolica forest, (5) Fraxinus mandshurica forest, (6) Q. serrata forest, and (7) Carpinus laxiflora forest.

Testing the Relationship between Person-Organizational Value Fit and Performance (개인-조직가치 부합수준과 성과관계 검증)

  • Park, Yang-Kyu;Yeo, Sung-Chil
    • The Korean Journal of Applied Statistics
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    • v.24 no.2
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    • pp.411-424
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    • 2011
  • The studies of congruence in organizational research have explored the concepts such as person-job fit person-organization fit, or person-environment fit. The relevant studies dealt with the fit level as an important influencing factor on the performance. In particular, researchers have agreed that employees can be motivated by the high level fit of person-organization. However, few research developing an alternative methodological approach has been done. For the purpose mentioned above the statistics like D, |D| or $D^2$ and the Q values such as Q(the correlation between two sets of interval measures) or $Q_r$(the correlation between two rankings) have been conventionally adopted in spite of numerous methodological problems. In general, these traditional indices such as difference scores, or Q values, are nondirectional and add an extra weight to differences of lager magnitude. Therefore, Edwards (1993) introduced the polynomial regression and the response surface analysis to overcome flaws with conventional approaches. However, the method-ological approaches did not reflect the profile characteristics of person-organizational value fit and wouldn't be a proper solution for the fit level of person-organization value maximizing performance. Hence, this paper investigates alternative methodological approaches, the multivariate polynomial regression and the multiple response surface analysis, to avoid the problems issued from conventional ways.

The Effects of Health Promotion Initiatives with Community Participation and Parterships: The Case of Sabong-Myeon in Jinju City (지역사회참여와 파트너쉽에 기반을 둔 지역건강증진사업의 효과: 진주시 사봉면 사례)

  • Jeong, Baekgeun;Kim, Jang-Rak;Kang, Yune-Sik;Park, Ki-Soo
    • Journal of agricultural medicine and community health
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    • v.39 no.4
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    • pp.209-221
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    • 2014
  • Objectives: The objective of this study was to identify the effects of area-based health promotion initiatives with community participation and partnerships conducted in Sabong-Myeon, Jinju City for three years. Methods: We used data from the '2008 Sabong-Myeon Health Survey' and the '2011 Health Plus Happiness Plus Community Health Survey'. The study comprised 520 systematically sampled individuals, composed of 300 adults in 2008 and 200 adults in 2011. We compared some health behavior and mental health indicators as well as social capital levels between these two surveys. Results: The prevalences of smoking and walking exercise in 2011 were significantly higher than those in 2008. The prevalences of high risk alcohol consumption in men, stress perception, depressive symptoms experience, and suicide ideation were significantly lower than those in 2008. The proportion of people having a high level of social capital in 2011 was significantly higher than that in 2008, regardless of sex or marital status. However, the difference in the proportion was not statistically significant among people with a high educational background. Conclusions: This study suggested that the 3 years' implementation of area-based health promotion initiatives conducted in Sabong-Myeon might help to improve the mental health and social capital level of this community. The long-term health effects of area-based health promotion initiatives with community participation and partnerships need to be studied further, and lessons from these initiatives can be obtained by adapting proper evaluation methods.

Moderating Effect of Education-Hours on the Relationship between Knowledge of Country-of-Origin Labeling and Performance in Hotel Culinary Staff (호텔조리직원들의 음식점 원산지표시에 대한 지식과 수행도 관계와 교육시간 조절효과)

  • Kwon, Ki-Wan;Chong, Yu-Kyeong
    • Culinary science and hospitality research
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    • v.22 no.4
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    • pp.37-50
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    • 2016
  • This study aims to examine the effect that the degree of knowledge about country-of-origin labeling on country-of-origin labeling work performance, which is a culinary staff task. This study is also intended to analyze differences in knowledge depending on hours of origin labeling education, and the moderating effect of education hours in the relationship between knowledge and performance. This study targeted culinary staff members working in ten five-star hotels in Seoul. A total of 205 self-administered questionnaires were distributed from November 14th to 27th, 2014, and 240 questionnaires(98.4%) were used for analysis after the exclusion of 4 with unreliable responses. Based on the data collected, frequency analysis, reliability test, exploratory factor analysis, simple regression analysis, t-test and moderating regression analysis were conducted using SPSS 18.0 program. The study findings are as follows. Culinary staff knowledge of origin labeling had a significantly positive effect on job performance and the degree of knowledge was higher in the group that attended one to two-hour periods of education. This suggests a differences in knowledge depending on the hours of education, which then had a moderating effect on the relationship between knowledge and performance. In conclusion, in order to improve knowledge of country-of-origin labeling and the level of performance, there is a need to increase education hours and enable culinary staff memebers to learn more knowledge and apply it to actual tasks. Based on these results, the limitation of the study and the direction of future research were also discussed.

A Study on the Topic Modeling Analysis of Book Reports on Personality Types and Interest Types (성격유형과 흥미유형에 따른 독서 감상문 토픽 분석 연구)

  • Jeong-Hoon Lim
    • Journal of the Korean Society for information Management
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    • v.40 no.1
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    • pp.175-198
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    • 2023
  • This study aimed to investigate the difference in response to reading as shown in book reports by personality type and interest type. For this purpose, personality type analysis data, interest type analysis data, and book report data written in subject reading activities were collected from 81 third graders at D Science High School in Daejeon. Topic analysis was conducted on the collected book reports, and the probability of a topic being mentioned was statistically tested according to personality type (thinking type, feeling type) and interest type (investigative type, types other than investigative). Subsequently, the conceptual connection structure of words was measured by keyword network analysis, and the analysis results of topic modeling were complemented by the centrality index. As a result of the study, the topic regression analysis showed statistically significant differences between thinking type (T) and feeling type (F) in topic 2 (understanding and studying) and topic 3 (reading and thinking), and statistically significant differences between investigative type and non-investigative type in topic 2 (understanding and studying). The results of this study can be used as a basis for tailored book recommendations and personalized reading education.

The Effect of the Disability Awareness Program (장애 인식개선 프로그램의 효과성 연구)

  • Lee, Jong-Nam;Han, Sang-Mee
    • 재활복지
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    • v.22 no.2
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    • pp.103-126
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    • 2018
  • The purpose of this study is to examine the effect of the disability awareness program and to search for its development plan. For this, the disability awareness program was developed and lecturers were educated. And it had been exercised and examined its effect to 508 people including elementary, middle and high school students and adults nationwide from June to October in 2017. To examine the effect of the program, Disability Awareness Index developed by Korean Foundation for Persons with Disabilities was used. It was also examined on the change of the disability awareness(understanding disability and human rights of disabled) and of the knowledge about discrimination and differentiation. Pre-post tests based on the experimental design were performed and data were analyzed using descriptive statistics, paired t-test, independent t-test and ANOVA. The research results showed as follows; Disability awareness was improved significantly and knowledge about discrimination and differentiation were enhanced after attending the program. Also, it was found that the factors like gender, age, and program types made significant difference to the effects of the program. Based on the research results, this study suggested for the development disability awareness program and the directions for future studies.

Comparison of Acute Cardiovascular Effects of Using Heated Tobacco Productsand Cigarette Smoking (가열담배 사용과 연소담배 흡연의 급성 심혈관 효과 검증)

  • Dong Kyu Kim;Maeng Kyu Kim
    • Journal of Life Science
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    • v.34 no.5
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    • pp.320-332
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    • 2024
  • The aims of this study were to compare the differences in hemodynamics between cigarette smoking and using heated tobacco products (HTPs) and to determine the acute effects of using HTPs on cardiac autonomic regulation. Another goal was to examine the acute cardiac autonomic responses when using different tobacco sticks in HTPs. Sixteen healthy male smokers completed an open-label, randomized, crossover trial consisting of non-smoking (NS), cigarette smoking, and the use of two different HTPs (IQOS with HEETS; lil SOLID with Fiit). Sub-trials, which included NS, lil SOLID with Fiit, and lil SOLID with HEET, were performed on eight smokers among the total subjects. Hemodynamic variables, such as systolic blood pressure (SBP) and diastolic blood pressure (DBP), and heart rate variability were measured before, during, and 30 minutes after using each tobacco product. Using HTPs resulted in a significant increase in both SBP and DBP, comparable to smoking cigarettes. Cardiac sympathetic activity significantly increased, and cardiac vagal tone (CVT) significantly decreased after acute exposure to HTP aerosol, similar to the effects of cigarette smoke exposure. Furthermore, differences in the withdrawal of CVT were observed when using different tobacco sticks in the same HTPs. The findings of this study indicate that acute exposure to HTP aerosol increases the hemodynamic burden and disrupts cardiac autonomic balance, similar to exposure to cigarette smoke. Moreover, depending on the type of tobacco stick inserted into the HTP device, acute withdrawal of CVT may have been enhanced.

A Study on Estimation for Freight Transportation Indices on Expressway Using TCS and WIM Data (TCS 및 WIM 자료를 활용한 고속도로 물동량 지표 산정방안에 관한 연구)

  • OH, Junghwa;KIM, Hyunseung;PARK, Minseok;CHOI, Yoonhyuk;KWON, Soonmin;PARK, Dongjoo
    • Journal of Korean Society of Transportation
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    • v.35 no.5
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    • pp.458-467
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    • 2017
  • The expressway of the Korea has an important role in freight movement because 76 percent of the commodity is transported by trucks. However, there has been few indices on the role of expressways regarding freight transportation and truck traffic. The objective of this study is to propose four freight transportation related indices using ITS-related system such as TCS and HS-Wim: total truck's travel miles ($veh{\cdot}km/year$), total freight transport miles ($ton{\cdot}km/year$). efficiency of truck's travel ($veh{\cdot}km/km$), and efficiency of freight movement ($ton{\cdot}km/km$). These truck and freight related indices were estimated and compared by two different data sources: traffic volume data using VDS and OD data using TCS. These indices were designed to estimated on real time and updated every day and month.