• Title/Summary/Keyword: Regression testing

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The Impact of the Motives of College Students for Choosing Majors on Career Decision-Making -Using Self-efficacy as a Mediation Effect (대학생들의 전공선택동기가 진로의사결정에 미치는 영향 -진로자기효능감을 매개효과로)

  • Kim, Sook-Ja
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.11 no.3
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    • pp.221-228
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    • 2018
  • This study aimed to analyze the impact of the motives of college students for choosing majors on career decision-making with self-efficacy used as a mediation effect, and to utilize the results as data for career counseling for college students. To do so, a research survey was conducted from November 1, 2017 to November 30, 2017, and based on the non-random convenience sampling technique, questionnaires were distributed to 1,300 students (2nd, 3rd, and 4th-year students) of five 4-year universities located in G Province. For frequency analysis and hypothesis testing, a multiple regression analysis and 3-step mediation effect analysis were used and the results of the analyses were as follows. The results of the analysis of the mediation effect of career self-efficacy on the impact of intrinsic motive on planning style showed that goal selection had a complete mediation effect. Given these results, it is necessary that educational institutions and society provide students, even during middle and high school years, with opportunities to discover their aptitudes and interests, and an educational system should be established to pave the way for students to be well prepared for and make decisions about the work they will do.

Relationship between Employee's Work-related Values and Job Performance (기업 구성원의 직무에 대한 가치관과 직무성과의 관계)

  • Lee, Jeong Eon
    • The Journal of the Korea Contents Association
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    • v.13 no.3
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    • pp.330-338
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    • 2013
  • The work-related values are important to understand the organizational members' behavior. Because they lay the foundation for understanding of attitudes and motivation. This study aims at developing and empirically testing a comprehensive model of work-related values. The study seeks to understand the relationship between work-related values and job performance. A questionnaire survey method is adopted to collect the data for this study. Correlations and moderated regression analysis are used to verify the proposed hypotheses. Pride in work, job involvement, and activity preference are correlated positively with job satisfaction and organization commitment. The attitude toward earnings and social status of job are negatively correlated with job satisfaction and organization commitment. But upward striving is positively correlated with organization commitment.

Study of the Influence of the Depressive mood of the Elderly : Focused on the mediating effect of Communication between families and self-esteem (노년기 우울감에 미치는 영향에 관한 연구 : 가족간 의사소통과 자아존중감의 매개효과를 중심으로)

  • Jung, Shin-Sub;Ha, Kyu-Soo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.9
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    • pp.5525-5533
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    • 2014
  • This study examined the influence of communication between families and self-esteem on the depression mood of the elderly, and provides basic data for a depression care program. For those purposes, a questionnaire was developed based on the literature regarding the depression mood. To achieve the research aim, the surveys were conducted in Seoul, Gyenggi-do for 420 elderly people from April to May 2014. The results of the hypothesis testing were as follows. The degree of depression was increased significantly in the elderly with economic factors, factor in family relationships, health factors, and social factors. According to hierarchical regression analysis, a significant mediating effect was found with communication between families and self-esteem on the depression mood of the elderly. Therefore, the characteristics of the elderly individual communication between families and the increase in self-esteem, which can be specifically institutional, social and administrative unit and financial support should be considered.

Estimated Blood Pressure Algorithm of Wrist Wearable Pulsimeter Using by Hall Device (홀소자를 이용한 손목착용 맥진기의 혈압추정 알고리즘)

  • Ahn, Myung-Cheon;Cho, Jong-Gu;Son, Il-Ho;Lee, Sang-Suk;Kim, Kuen-Ho
    • Journal of the Korean Magnetics Society
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    • v.20 no.3
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    • pp.106-113
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    • 2010
  • In order to get the precise blood pressure and pulse number in the cuffless status, the wrist wearable pulsimeter with a portable and small size apparatus using by Hall device is developed. The regression analysis of the pulse wave measured by the testing product of pulsimeter is conducted two equations of the blood pressure algorithm. The estimated values of blood pressure obtained by the cuffless pulsimeter during 5 s are compared with the practical values measured by electronic or mercury liquid blood pressure meters. The standard deviation of the estimated value and the practical value for the high blood pressure and the low blood pressure were 12.1 and 5.9, respectively, which have the neighborhood values of BP International Standard. The detail analysis of a pulse wave measured by cuffless wrist wearable detecting the changes of the magnetic field can be used to develop a new diagnostic algorithm of blood pressure applying for oriental medical apparatus like as the wrist wearable pulsimeter.

A Study on the Factors affecting the Recovery Satisfaction at Logistics Service Failure (물류서비스실패시 회복만족에 영향을 미치는 요인에 관한 연구)

  • Choi, Youngro
    • Journal of Korea Port Economic Association
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    • v.28 no.4
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    • pp.169-191
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    • 2012
  • This study is to investigate the strategy on forming a long term relationship between logistics service provider and demander including maintaining strategy of it. For these purposes, effect on the organization and human factor of Logistics service companies and also, impact on the customer trust and relational commitment against service recovery are analysed. Literature review and empirical study are used to modify research model and to develop questionnaire for logistics service companies. Reliability for measuring procedure yields the same result on repeated trials and validity for identifying the accuracy of the accrual measuring instrument are also used. Suggested hypothesis are verified through multiple regression method and the testing results are shown as follows; First, organization and human factor have a positive effect to the service recovery satisfaction against the service failure of logistics service providing company. Second, the service recovery satisfaction also leads a positive effect on the customer trust and relational commitment.

Directions for Muti-institutional Cooperation in Follow-up Management of Prostatic Disease Screening for the Low-income Group in Gangwon-do (강원도 저소득층의 전립선질환 검진사업과 사후관리를 위한 유관기관 협력방안)

  • Jang, Sungok;Lee, Jongseok
    • Korean Journal of Health Education and Promotion
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    • v.30 no.4
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    • pp.99-110
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    • 2013
  • Objectives: This study aimed to investigate factors related to prostate disease and follow-up procedure on health examination program in Gangwon-do. Methods: The studied population was 16,501 male aged 40 or more, who underwent screening tests for prostatic disease in 2011 health examination program designed for the low income residents in Gangwon-do. The screening tests included prostate specific antigen (PSA), international symptom score (IPSS), and maximal flow rate (Qmax). We conducted chi-square test for trend, two independent samples t-test, and binary logistic regression to find out the relationship between prostate cancer or benign prostatic hyperplasia and risk factors such as age, PSA level, and IPSS. Results: The number of subjects who turned out positive for PSA level (> 3.8ng/ml) was 971 men accounting for 5.9%. The result of post survey on them showed that 511 subjects (52.6%) got the urology check-up: 156 (30.5%) were diagnosed as normal, 286 (56.0%) as benign prostatic hyperplasia, and 69 (13.5%) as prostate cancer. The detection rate for prostate cancer was 8.8% when PSA level was between 3.81 and 9.99g/ml, and was 30.6% when PSA level was more than 10.00ng/ml. The rates of further testing varied depending on the communities from 26.7% to 68.2%, which was mainly affected by the role of local health center. Conclusions: Our findings indicate that enhanced quality control of local health center and empowerment of screening agency would increase the effort of coupled institutions between public and private sectors.

Exposure of Organic Solvent Mixtures and Subjective Symptoms to Beauty-Salon Workers (미용실(Beauty salon) 근로자들의 유기용제 폭로와 자각증상에 관한 연구)

  • Lee, Chang-Eun;Sim, Sang-Hyo
    • Journal of Environmental Science International
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    • v.18 no.3
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    • pp.345-353
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    • 2009
  • The purpose of this study is to examine the health of beauty salon workers through the utilization of questionnaires concerning the extent of exposure to organic solvents found in the air of some beauty salons and any resultant symptoms in employees. The subjects were 36 employees from 10 beauty salons who agreed to participate in this study. The degree of exposure to organic solvents in the air of beauty salons was measured from September 1, 2008 to September 30, 2008. A survey of symptoms that occurred due to exposure to these solvents was also performed. The results were as follows: questionnaires were collected and analyzed from a total of 36 subjects. Of these, 28(77.8%) were female and 8(22.2%) were male. The mean age was 29.08. The mean working period was 7.13 years. Sixteen subjects attended programs at universities while 11 went to beauty schools for vocational education. When testing the concentration of organic solvents in the air of beauty salons, the highest value found was Isopropyl alcohol 511.85 ppb followed by butyl acetate, toluene, acetone, xylene, ethyl benzene, styrene, and chlorobenzene. A logistic regression analysis was performed as follows: the point of each factor was the dependent variable while sex, age, drinking, smoking, educational level, work experience, hairdresser's license, and organic solvents were the independent variables. Statistically significant difference (p<0.05) was shown in the hairdresser's license among Factor 1 and in Xylene among Factor 2; however, difference was not shown in the other variables.

Identifying Latent Profiles in School Adaptation of School Absentee Adolescents and Testing the Effects of Predictive Variables (학교결석 청소년의 학교적응 유형과 예측요인 검증)

  • Kim, Dongha
    • Korean Journal of Social Welfare
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    • v.66 no.3
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    • pp.5-28
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    • 2014
  • School absenteeism, one of the early warning signs of behavioral problems, has been known to be a complex and heterogeneous problem. However, much of the research assumes that school absentee adolescents comprise a homogeneous group. This study explored the heterogeneity of school absentee adolescents, based on school adaptation, to provide a more nuanced understanding of school absenteeism and examined predictive and risk factors associated with each typology of school absentee adolescents. Latent profile analysis was conducted using sample 477 middle school students who were reported absent in the previous year from the 3rd wave of Korean Children and Youth Panel Study. Multinomial logistic regression and ANOVA was also employed to examine the effects of predictive variables. As a result, three profiles were identified: low, middle, and high adaptive group. Group membership was found to be associated deferentially with gender, mental health, parenting neglect, delinquent friends, and delinquent behaviors. These findings propose more specific and targeted interventions designed to meet the needs and risk factors associated with the different typologies of school absentee adolescents.

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The Effects of Hotel Culinary Employee's Job Embeddedness on Job Satisfaction, Career Commitment and Turnover Intention (호텔 조리종사자의 직무착근도가 직무만족, 경력몰입 및 이직의사에 미치는 영향)

  • Jeon, Yoo-Myeong
    • Culinary science and hospitality research
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    • v.20 no.6
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    • pp.41-55
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    • 2014
  • This study made frequency analysis, factor analysis, reliability analysis, correlation analysis, and regression analysis using SPSS 18.0 for 225 culinary employees working for super deluxe hotels in Busan and Ulsan areas in order to analyze the effects of job embeddedness on job satisfaction, career commitment and turnover intention. Results are as follows: first, as a result of testing the effects of hotel culinary employee's job embeddedness on job satisfaction, it was found that fitness, sacrifice, and links have positive (+) effects on job satisfaction. Second, it was found that fitness and sacrifice of a hotel culinary employee's job embeddedness have positive (+) effects on career commitment. Third, this study showed that fitness and sacrifice have negative (-) effects on turnover intention. Fourth, it was found that job satisfaction has a negative (-) effect on turnover intention. Fifth, it was found that career commitment has a negative (-) effect on turnover intention. These findings indicate that the higher hotel culinary employee's job embeddedness is, the less their intention to change jobs becomes by increasing job satisfaction and career commitment.

Contributions of CYP2C9/CYP2C19 Genotypes and Drug Interaction to the Phenytoin Treatment in the Korean Epileptic Patients in the Clinical Setting

  • Lee, Soo-Youn;Lee, Seung-Tae;Kim, Jong-Won
    • BMB Reports
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    • v.40 no.3
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    • pp.448-452
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    • 2007
  • We examined the contribution of CYP2C9 and CYP2C19 genotypes and drug interactions to the phenytoin metabolism among 97 Korean epileptic patients to determine if pharmacogenetic testing could be utilized in routine clinical practice. The CYP2C9 polymorphism is a wellknown major genetic factor responsible for phenytoin metabolism. The CYP219 polymorphism, with a high incidence of variant alleles, has a minor influence on phenytoin treated Koran patients. Using a multiple regression model for evaluation of the CYP2C9 and CYP2C19 genotypes, together with other non-genetic variables, we explained 39.6% of the variance in serum phenytoin levels. Incorporation of genotyping for CYP2C9 and CYP2C19 into a clinical practice may be of some help in the determination of phenytoin dosage. However, because concurrent drug treatment is common in patients taking phenytoin and many environmental factors are likely to play a role in drug metabolism, these factors may overwhelm the relevance of CYP polymorphisms in the clinical setting. Further investigations with an approach to dose assessment that includes comprehensive interpretation of both pharmacogenetic and pharmacokinetic data along with understanding of the mechanism of drug interactions in dosage adjustment is warranted.