• Title/Summary/Keyword: Multiple regression model

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The Prediction of Mastery-Approach Goal Orientation, Task Value, and Self-Regulated Learning Strategy on Academic Satisfaction and Achievement of Cyber Engineering University Students (사이버대학교 공학계열 학생들의 숙달접근목표지향성, 과제가치, 자기조절학습전략의 학업만족도와 학업성취도 예측력 규명)

  • Joo, Young-Ju;Chung, Ae-Kyung;Seol, Hyun-Nam;Yi, Sang-Hoi
    • 전자공학회논문지 IE
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    • v.49 no.2
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    • pp.65-74
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    • 2012
  • The purpose of this study is to verify the prediction of mastery-approach goal orientation, task value, and self-regulated learning strategy on academic satisfaction and achievement of cyber engineering university students. For this study, 219 engineering students of H cyber university who enrolled in the spring semester of 2011 was chosen and completed web surveys. A hypothetical model proposed included mastery-approach goal orientation, task value, and self-regulated learning strategy as predictors, and academic satisfaction and achievement as criteria variables. The results of this study through multiple regression analysis indicated that task value(${\beta}$=.401) and self-regulated learning strategy(${\beta}$=.401) predicted significantly on academic satisfaction. In addition, self-regulated learning strategy(${\beta}$=.301) and mastery-approach goal orientation(${\beta}$=.196) predicted significantly on academic achievement. The result of this study suggested that mastery-approach goal orientation, task value, and self-regulated learning strategy should be considered for improving academic satisfaction and achievement in cyber engineering education.

A Study of the Causal Relationship between Organizational Trust and Error Management Culture across Social Service Agencies (조직신뢰와 오류관리문화와의 관계에 대한 연구 - 사회복지이용시설을 중심으로 -)

  • Lee, Sangchul
    • Korean Journal of Social Welfare
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    • v.67 no.3
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    • pp.83-105
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    • 2015
  • This study has two objectives. First, it examines the relationship between organizational trust and error management culture. Second, it also examines the effect of social workers' perceived work value on the combined model by considering the unique characteristics of social work profession and social desirability. This study employs the stratified sampling method on social workers with more than two year work experiences in their current social service agencies that are located in Seoul and Kyungki province; finally it analyzes the responses from 564 social workers by using the method of multiple regression modeling. This study has the following results: (1) there is a causal relationship between social desirability and organizational trust perceived by social workers; (2) there is a positive causal relationship between social workers' perceived work value and organizational trust; and (3) there is also a positive causal relationship between factor structure of error management culture and organizational trust. This study discusses the theoretical and practical implications of the results.

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Effects of Operational Practices of Contract Foodservice Management Company on Relationship Quality and Recontract Intention (위탁급식 전문업체 운영요인들이 거래관계의 질과 재이용의사에 미치는 영향)

  • Chun, Dal-Young;Goo, Hye-Kyoung;Yin, Jee-Hyun
    • The Journal of the Korea Contents Association
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    • v.12 no.5
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    • pp.331-345
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    • 2012
  • The main purpose of this study is to investigate the effects of operational practices of contract foodservice management company on relationship quality and recontract intention. To verify research model, 126 data were collected from client companies of E contract foodservice management company and analyzed using structural equation modeling and multiple regression. The results of this study can be summarized as follows. First, direct factors such as operational costs, menu management, and service management had significant influences on food service quality. On the other hand, indirect factors such as operational supportability, brand image, and capacity of sales management were not important to food service quality. Second, indirect operational practices had significant effects on trust. That is, when operational supportability was increased, brand image was enhanced, and capacity of sales management was strengthened, client company's trust on contract foodservice company was increased. Among them, brand image showed the highest effect. Also, direct practices such as operational costs, menu management, and sanitary/facilities management significantly influenced on trust. Third, food service quality significantly affected trust. Finally, only trust had significant effect on recontract intention but food service quality did not. This means that food service quality alone is not enough to earn recontract intention. Relationship marketing efforts to form trust should be made between contract foodservice company and client company.

Clinical Study of 25 Interstitial Cystitis Patients (간질성 방광염 환자 25예에 대한 임상적 고찰)

  • Son, Gi-Jeong;Oh, Hyeon-Jo;Lee, Jung-Gon;Nam, Seung-Kyu;Kim, Chul-Jung;Cho, Chung-Sik
    • The Journal of Internal Korean Medicine
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    • v.33 no.2
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    • pp.222-230
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    • 2012
  • Background : Interstitial cystitis is a disorder of the bladder characterized by urgency and frequency of urination, and pelvic pain. The cause of interstitial cystitis is not clear. Modern medical treatments include behavioral therapy, medication, intravesical infusion therapy, and surgical treatment, but the goal of treatment is based on symptom relief rather than a cure. According to a recent report, in an animal model, oriental medicine treatment, Yukmijihwang-tang improved the symptoms of interstitial cystitis. However, clinical studies and experimental research are lacking. Objectives : In this study, We investigated Chuknyojetong-tang, acupuncture, moxibustion and bee venom effect on interstitial cystitis. Methods : We targeted 25 patients diagnosed with interstitial cystitis at the university hospital and treated them for more than one month. We used acupuncture, Chuknyojetong-tang, and bee venom. The effects were evaluated using ICSI and ICPI at the begin of treatment and at the end of treatment. Results : All of the 25 patients were female, average age was $53.3{\pm}13.5$ years, and the average month of disease-duration was $69.0{\pm}59.8$. The duration of treatment was $8.0{\pm}5.4$ months, and 60% of patients were improved. After treatment, we used correlation coefficient method, multiple regression analysis. ICSI difference increased as treatment period increased. ICPI difference increased as age decreased. Total difference also increased as treatment period increased. These results imply that treatment effect was improved. Conclusions : These findings suggest that oriental medicine therapy using Chuknyojetong-tang, acupuncture, moxibustion, and bee venom would be very effective on interstitial cystitis.

Associations of Non Alcoholic Fatty Liver with the Metabolic Syndrome and Serum Carotenoids (비알코올성 지방간과 대사증후군 및 혈청 카로테노이드와의 관련성)

  • Park, Sun-Kyun;Lee, Hyun-Jung;Lee, Duk-Hee;Lee, Sung-Kook;Chun, Byung-Yeol;Kim, Sung-Ae;Lee, Hye-Sung;Son, Hyo-Kyung;Kim, Sung-Hi
    • Journal of Preventive Medicine and Public Health
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    • v.41 no.1
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    • pp.39-44
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    • 2008
  • Objectives : This study was conducted to investigate the associations of non alcoholic fatty liver with metabolic syndrome and the serum carotenoids. Methods : This study was conducted in a general hospital in South Korea from November, 2004 to August, 2005. The study subjects were 350 sampled persons who were aged from 40 years and older (males : 180, females : 170). They were grouped into the normal, mild and severe groups according to fat accumulation in their livers, as determined by ultrasonography. We analyzed the association between non alcoholic fatty liver and metabolic syndrome by multiple logistic regression analysis and we analyzed the association between non alcoholic fatty liver and the serum carotenoids by a general linear model(ANCOVA). Results : After adjustment for the effect of potential covariates, the prevalence of metabolic syndrome was associated with fat accumulation in the liver (p trend <0.001). If the odds ratio of normal group is 1.00, then that of the mild group is 2.80 (95% C.I=1.17-6.71) and that of the severe group is 7.29 (95% C.I=2.76-19.30). The prevalence of metabolic alterations fitting the criteria of metabolic syndrome, according to the class of fat accumulation in the liver, was significantly increased, except for criteria of high blood pressure, a large waist circumference and low HDL (high density lipoprotein) cholesterol level (p trend <0.001). The level of serum ${\beta}$-carotene was decreased according to the class of fat accumulation in the liver (p trend=0.036), but the levels of serum ${\alpha}$-carotene, lycopene, ${\beta}$-cryptoxanthin and lutein were not decreased. Conclusions : This study shows that non alcoholic fatty liver was associated with metabolic syndrome and with the serum ${\beta}$-carotene level.

A Study on the Satisfaction and Achievement of Learning by Female Learner's Characteristics in Internet Education Program (여성 학습자의 특성에 따른 인터넷교육 프로그램 만족도와 학업성취도에 관한 연구)

  • Lim, Kwang Myung;Kim, Sung Soo
    • Journal of Agricultural Extension & Community Development
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    • v.8 no.1
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    • pp.25-40
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    • 2001
  • The purposes of the study were to identify satisfaction and achievement of learning by female learner's characteristics, and to suggest measures to improve quality of education in internet education programs. In order to determine the educational effectiveness associated with the characteristics of learners, this study attempted to employ two way approaches by observing the degree of achievement for learning, which represents an instructor-oriented approach, and the degree of satisfaction for education, which represents a learner-oriented approach to enhance the quality of internet education for female learners. As an approach to evaluate the educational effectiveness, the degree of achievement in learning(Tyler's classical approach), and the degree of satisfaction for education (Scriven's consumer-oriented evaluation model) were utilized. A survey form was developed by the researcher after reviewing the various tools originated from Boshier, Cross, Gagne and Choi, and distributed to a panel of judges that examined the content validity of the instrument. The sample for the study consisted of 160 female learners from three universities in Seoul and capital area, and the survey form was used to collect data for this study. The SPSS WIN program was used in analyzing the data and a series of statistical tests were conducted including frequency, percentile, t-test, ANOVA, correlation, multiple regression, and factor analysis. The statistical significance level was 0.05. The following conclusion were drawn from this study of female internet education. First, it was evident that female internet learners tend to utilize information from internet, and this can be interpreted as participants' positive attitude, and voluntary participation. Second, educational facilities and services should be improved in the future, because the level of satisfaction was low in these areas compared to curriculum and educational methodology. Third, the participating factors influenced by the level of satisfaction for education of learner characteristics were the 'formation of inter-personal relationship and willingness to change' and the 'needs for education on internet', thus appeared that both social and educational needs influenced the level of satisfaction for education. Fourth, the degree of achievement in learning was higher in the order of 1) attitude 2) function 3) knowledge, thus, attitude change was the most important in achievement of learning. Fifth, the individual background that influenced the level of achievement in learning were age and educational experience. As for the individual level of achievement for learning, the younger and more educated group were more satisfied.

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A Study on the Relationship of Serum Vitamin D Levels with Insulin Resistance in Premenopausal Women (폐경 전 여성에서 혈청 비타민 D 농도와 인슐린 저항성에 관한 연구)

  • Lee, Ji-Hye;Hong, Jun-Hwa;Kim, Hyun-Jin;Park, Kang-Seo;Lee, Jae-Min;Kim, Byung-Joon;Ahn, Kyu-Jeung;Jeong, Bi-O;Kim, Sung-Hwan;Lee, Seong-Kyu
    • Journal of the East Asian Society of Dietary Life
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    • v.19 no.5
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    • pp.713-722
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    • 2009
  • Vitamin D levels have been reported to be associated with diabetes, obesity and metabolic syndrome. There have been studies on the nutritional status of vitamin D in postmenopausal women at Seoul and premenopausal women at Busan, and these studies showed that nearly no relationship between serum vitamin D levels and the obesity index existed. However, there have been no studies that examined about the relationship between serum vitamin D levels and insulin resistance in Korea. In this study, we investigated serum vitamin D levels and the relationship between serum vitamin D levels and insulin resistance (homeostasis model assessment of insulin resistance), obesity index (body mass index, percentage of body fat and waist circumference) in 180 premenopausal women (non-obese women 87.8%, obese women 12.2%) in spring (March~April), fall (September~October) and winter (January~February) at Daejeon. Serum vitamin D levels were lower in winter than in spring-fall, after adjusting for age and the obesity index. The frequency of vitamin D inadequacy (serum vitamin D levels were $\leq$ 20 ng/mL) was 45.5% in winter and, 23.5% in spring-fall, and which showed that vitamin D inadequacy was higher in winter than in spring-fall. Multiple regression analysis showed that serum vitamin D levels had no relationship with the obesity index or insulin resistance. There was no difference in the obesity index or insulin resistance between the vitamin D inadequacy and normal group, and there was no relationship between serum vitamin D levels and the obesity index or insulin resistance in non-obese and obese premenopausal women, respectively. In conclusion, serum vitamin D levels in premenopausal women at Daejeon were lower in winter than in spring-fall, and the frequency of vitamin D inadequacy was higher in winter than in spring-fall. Serum vitamin D levels had no relationship with the obesity index or insulin resistance in premenopausal women, most of whom were not obese.

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A Study of the Relationship between Human Resource Management & Financial Resource Management and Service Quality in Social Service Organizations (사회복지조직의 인적자원 및 재정자원 관리와 서비스 품질 간 관계에 대한 연구)

  • Kang, Chulhee;Hur, Younghye
    • Korean Journal of Social Welfare
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    • v.67 no.4
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    • pp.51-77
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    • 2015
  • This study attempts to examine the relationship between human resource management & financial resource management and service quality in social service organizations in Korea. This study utilizes '2012 Central Government Social Welfare Facilities Evaluation (CGSWFE)' data and employs multiple regression method to examine research model. The key findings of this study are as follows: (1) after controlling extraneous variables (organizational characteristics), among human resource management related variables, performance appraisal, fringe benefits, supervision, formal grievance procedure, the percentage of employees with certified professional license, and salary have statistically significant relationships with service quality in a positive direction; (2) among financial resource management related variables, the percentage of additional governmental funding beyond basic government subsidies, accounting management, and transparent use and management of donations have statistically significant relationships with service quality in a positive direction; and (3) human resource management related variables are stronger than financial resource management related variables in explaining service quality. The findings imply that more systematic human resource management and financial resource management would be very important in strengthening service quality in social service organizations. This study provides new knowledge foundation regarding the effect of human resource management and financial resource management on service quality in social service organizations.

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The Determinants of Health Promoting Lifestyle in Students of Women's High School (여고생의 건강증진 생활양식 결정요인에 관한 연구)

  • Kim Young Hee
    • Journal of Korean Public Health Nursing
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    • v.16 no.2
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    • pp.254-270
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    • 2002
  • This descriptive correlational study was conducted to identify the variables related to a health promoting lifestyle in women student of high school. 286 students were selected by a convenience sampling method. The data were collected by self - reported questionnaires from 10 to July 13, 2002. The data were analyzed by using descriptive statistics, pearson correlation coefficient, stepwise multiple regression with SPSS program. The result of this study were as follows: 1. The average score of health promoting behavior was 2.46 of a 4 point scale. Sanitary life(3.05), interpersonal support(2.80), alcohol & smoking(2.79) Self actualization(2.76), habit of meal(2.52), rest & sleeping(2.33) regulation of meal(2.30) stress management(2.05), health responsibility(1.91) were also analyzed. 2. Health promoting lifestyle showed significant positive correlations with self-esteem (r=0.446, p<0.00l), life orientation test(r=.493, P<0.0l) and score(F=6.157, P=0.002) 3. Perceived health state showed significant correlation with alcohol & smoking subscale(r=-.134, P<0.05) of health promoting lifestyle. Self-esteem showed significant correlation with total health promoting lifestyle(r=.538, P<0.01), and showed significant correlation self-actualization subscale(r=.657, P<0.01) health responsibility subscale (r=.272, P<0.01), food regulation subscale(r=.126, P<0.05), interpersonal relationship subscale (r=.468, P<0.0l), stress management subscale(r=.349, P<0.01) sanitary life subscale (r=.282, P<0.01) sleep & rest subscale(r=.123, P<0.05). Life orientation test showed significant correlation with total health promoting lifestyle(r=.493, p<0.01), self­actualization subscale(r=.643, p<0.01) health responsibility subscale(r=.192, P<0.0l), habit of meal subscale(r=.215, p<0.01), interpersonal relationship subscale(r=.423, p<0.01), stress management subscale(r=.345, p<0.01) sanitary life subscale(r=.191, p<0.01) sleep & rest subscale(r=.137, P<0.05). Stress response showed significant correlation with sleep & rest subscale(r=-.137, P<0.05) of health promoting lifestyle. 4. The combination of self-esteem. life orientation test explained $33.2\%$ of the variance in health promoting lifestyle. On the basis of the above findings. self-esteem and Life Orientation Test were identified as the variables which explained most of Pender's health promoting model. Nursing strategies enhancing self-esteem and Life Orientation Test which have a more significant effect on health promoting lifestyles should be developed.

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Genetic parameters of milk β-hydroxybutyrate acid, milk acetone, milk yield, and energy-corrected milk for Holstein dairy cattle in Korea (국내 Holstein종에서 milk β-hydroxybutyrate acid, milk acetone, 에너지 보정유량 및 산유량의 유전모수 추정)

  • Lee, SeokHyun;Choi, Sungwoon;Dang, Chang-Gwon;Mahboob, Alarn;Do, ChangHee
    • Journal of the Korean Data and Information Science Society
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    • v.28 no.6
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    • pp.1349-1360
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    • 2017
  • This study was conducted to estimate the genetic parameters for common ketosis indicators (${\beta}$-hydroxybutyrate acid, BHBA; milk acetone), feed intake efficiency indicator (energy-corrected milk, ECM), and milk yield (MY) in Korean Holstein. A total of 75,072 monthly test-day records from 14,397 first parity cows were collected, between 2012 and 2016, from Korea animal improvement association enrolled farms. Variance components were estimated using a multiple trait random regression model. The heritability of BHBA and acetone levels ranged from 0.06 to 0.15 at different DIMs. The phenotypic and genetic correlations between BHBA and acetone were between 0.73 and 0.90, and between 0.93 and 0.98, respectively. The phenotypic correlation between BHBA and MY, between acetone and MY, between BHBA and ECM, and between acetone and ECM ranged from -0.18 to -0.05, -0.23 to -0.05, 0 to 0.10, and -0.09 to 0.01, respectively. Genetic correlation estimates between BHBA and MY, between acetone and MY, between BHBA and ECM, and between acetone and ECM also ranged from -0.55 to 0.05, -0.62 to -0.04, -0.10 to 0.11, and -0.20 to 0.00, respectively. We hope that these results would greatly assist in the improvement of ketosis disease in the local Holsteins.