• Journal of Digital Convergence
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• v.16 no.2
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• pp.269-276
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• 2018

The purpose of this study was to investigate the relationship between Grit and stress and college adjustment of nursing college students and to confirm the effect of nursing students' adaptation to college life. The study subjects were 145 students who agreed to participate in this study after completing at least one semester of clinical practice. The collected data were analyzed by SPSS 23.0 program using descriptive statistics, Pearson's correlation, Multiple regression analysis. There was a significant positive correlation between college life adaptation and grit (r=.17, p=.047) and a negative correlation between stress and university life (r=-.31, p<.001). Grit and stress had an explanatory power of 11.2% on adaptation to college life(F=9.98, p<.001). The results of this study suggest that it is necessary to improve nursing students' Grit level and to develop effective stress management programs for their adaptation to college life.

• Journal of Periodontal and Implant Science
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• v.42 no.6
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• pp.212-216
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• 2012

Purpose: The aim of this study was to evaluate the relationship between maternal periodontal disease and the health status of newborns using Apgar scores. Methods: One hundred pregnant women with periodontal disease were included in the case series and 100 pregnant women without periodontal disease were placed in the control group, respectively. The periodontal parameters of bleeding on probing (BOP), clinical attachment loss (CAL), probing depth (PD), birth weight, and Apgar scores were recorded in both groups. T-tests and Pearson's correlation coefficient were used to determine the birth weight odds ratio to analyze the relationship between the periodontal parameters of BOP, CAL, and PD on the one hand and an Apgar score of less than 7. An unpaired Student's t-test was used to analyze differences in means between the case and control groups using SPSS ver. 13. Results: The means of the ages, periodontal pocket depths, attachment loss, areas with BOP, Apgar score in the first 5 minutes and infant birth weight exhibited statistically significant differences between the case and control groups. The ratio of an Apgar score of <7 to periodontal disease was 3.14; the ratio of low birth weight risk in mothers with periodontal disease to that in mothers without periodontal disease was 2.74. Pearson's correlation coefficient revealed a significant correlation between the infant birth weight and BOP, CAL, and PD of the mother. In addition, there was a significant correlation between the Apgar score and BOP, CAL, and PD and also between the Apgar score and infant birth weight. Conclusions: The results of this study showed a significant relationship between periodontal disease and infant birth weight; in addition, there was a significant relationship between the periodontal indexes of BOP, CAL, and PD on the one hand and the Apgar score on the other.

• Journal of the Korea Convergence Society
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• v.12 no.8
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• pp.61-66
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• 2021

The purpose of this study was to investigate the relationship between vertical jump and lower extremity muscle strength of elementary school baseball players. This study subjects were conducted with a total of 40 subjects. Vertical jump was measured using a vertical jump gauge, and a hand held dynamometer was used to measure lower extremity muscle strength. For the measurement of lower extremity muscle strength, flexion·extension·adduction·abduction·internal rotaiton·external rotation of both hip joint, flexion·extension of both knee joint, dorsi flexion·plantar flexion of both ankle joint were measured. pearson's correlation analysis was used to analyze the correlation between vertical jump and lower extremity muscle strength. From these results, it was found that the stronger the leg muscles except for the plantar flexion, the higher the vertical jump was, indicating a positive correlation. In future studies, follow-up studies on the relationship between batting ability and vertical jump & lower extremity muscle strength are needed.

• The Journal of the Convergence on Culture Technology
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• v.8 no.1
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• pp.219-226
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• 2022

This study is a descriptive research study to confirm the degree and correlation of major satisfaction, self-esteem, and work values of nursing students, and was attempted to provide basic data for nursing students' nursing education. The subjects of this study were 224 nursing students from one university in the c region. Data analysis was analyzed using SPSS 22.0 program with frequency and percentage, mean and standard deviation, t-test and ANOVA, and Pearson's Correlation Coefficients. As a result of this study, there was a statistically significant difference in major satisfaction at the time of major decision(F=4.127, P=.004), self-esteem at the motivation for admission(F=7.384, P<.001), and work value at the motivation for admission(F=5.023, P<.001) and the presence or absence of nurses in the family(F=3.501, P<.001). There was a significant correlation between major satisfaction, self-esteem, and work value of nursing college students. Through the results of this study, it is suggested that it is necessary to develop an education and training program that can improve the major satisfaction, self-esteem, and job value of nursing college students.

• Journal of Industrial Convergence
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• v.21 no.6
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• pp.53-60
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• 2023

The purpose of this study is to identify the subjective health status, COVID-19 risk perception, antibody knowledge, social influence, intention of acceptance of the COVID-19 antibody test for general adults and the factors affecting the acceptance of the COVID-19 antibody test. The subjects of the study were 147 adults, and the collected data were analyzed using the SPSS 27.0 program using the frequency, percentage, average and standard deviation, independent t-test, ANOVA, pearson's correlation coefficients, and multiple regression analysis. The results, the acceptance of the COVID-19 antibody test has a significant static correlation with the social influence, the COVID-19 risk perception, and the negative correlation with the subjective health. The factor affecting the acceptance of the COVID-19 antibody test of the general adult was a social influence, and their explanatory power was 50.2%. As a result of this study, COVID-19 antibody tests may be used by preparing effective measures to prevent the spread of the COVID-19 infection.

• The Journal of the Korea Contents Association
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• v.17 no.10
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• pp.41-53
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• 2017

The purpose of this study is to investigate the effect of child care center director's emotional leadership on childcare teachers' emotional intelligence and quality of life. For this purpose, this study conducted a questionnaire survey of 277 teachers working at child care centers located in K and J provinces. The data collected for this study were analyzed by frequency analysis, descriptive statistics, Pearson's product moment correlation, and multiple regression using SPSS Win 20.0. The results of the study are as follows. First, it was found that the child care center director's emotional leadership has a significant positive correlation with emotional intelligence, and has a 7.2% influence on child care teachers' emotional intelligence. Second, it was found that the child care center director's emotional leadership has a significant positive correlation with quality of life, and has a 9.9% influence on child care teachers' quality of life. Through these results, this study aims to provide basic data to prepare policy strategies for improving child care teachers' quality of life in terms of child care center director's emotional leadership and childcare teachers' emotional intelligence.

• Advances in pediatric surgery
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• v.11 no.1
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• pp.19-26
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• 2005

Choledochal cysts have been associated with complications such as cholangitis, pancreatitis, and malignancy of the biliary tract. Recently, the incidence of choledochal cyst in neonate and young infant is increasing due to advances in diagnostic imaging. The aim of this study is to investigate the rationale of excision of choledochal cyst during the neonatal period. The clinical outcome and correlation between age at surgery and the degree of liver fibrosis were reviewed retrospectively. A total of 198 patients with choledochal cyst who were managed surgically between January 1985 and December 2000 at the Department of Surgery, Seoul National University Children's Hospital were included in this study. The overall outcome and the outcome of patients who were managed surgically during the neonatal period were compared. Correlation between age and the degree of liver fibrosis was evaluated by chi-square test and Pearson exact test. The mean age of the patients was 2 years 7 months (ranged from 5 days to 15 years). Mean postoperative follow-up period was 7 years 1 month (7 months to 20 years). The results are as follows. Twelve patients (6%) had postoperative complications, cholangitis (7), bleeding (4) and ileus (1). Eleven patients operated during the neonatal period had no postoperative complications. The positive correlation between age group and degree of liver fibrosis was statistically significant (chi-square: p=0.0165, Pearson exact test: p=0.019). The results support the rationale that excision of choledochal cyst can be performed safely without increasing morbidity in neonates.

• Transactions of Materials Processing
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• v.20 no.2
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• pp.124-131
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• 2011

A flexible stretch forming process is useful for small quantity batch production because various shape changes of the flexible die can be achieved conveniently. In this study, the design variables, namely, the punch size, curvature radius and elastic pad thickness, were quantitatively evaluated to understand their influence on sheet formability using statistical methods such as the correlation and regression analyses. Forming simulations were designed and conducted by a three-way factorial design to obtain numerical values of a shape error. Linear relationships between the design variables and the shape error resulted from the Pearson correlation analysis. Subsequently, a regression analysis was also conducted between the design variables and the shape error. A regression equation was derived and used in the flexible die design stage to estimate the shape error.

• Korean Journal of Child Studies
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• v.26 no.1
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• pp.247-259
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• 2005

The present study researched Sternberg's(1997) definition of Thinking Style as interactive and reciprocal mental self-government and explored its relationship to creativity in preservice kindergarten teachers. The Thinking Style Inventory(Yoon, 1998) and the Creativity Test(You, 1996) were administered to 210 subjects. Data were analyzed by Pearson's correlation and multiple regression analysis using the SPSS/WIN 10.0 program. Thinking style profiles of preservice kindergarten teachers were confirmed by a trilateral correlation among legislative, executive, and judicial functions and a positive correlation among monarchic, hierarchic, oligarchic, and anarchic forms. There was a negative bilateral correlation between liberal and conservative tendencies. All sub areas of thinking styles were related to the creativity of preservice kindergarten teachers.

• IE interfaces
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• v.14 no.1
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• pp.79-83
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• 2001

In this paper, we propose a simple method to reduce categorical variables into smaller, but significant numbers, and also demonstrate how the proposed method can be applied to the problem of reduction that empirical research often faces in the course of data processing. For the purpose, we introduce a concept of pseudo-correlation coefficient to make it possible to use factor analysis (FA) as a tool for reducing variables. The main idea of the concept is to deal with the measures of association of categorical variables in the sense of the concept of Pearson's correlation coefficient in order to meet the input requirement of FA. Upon examination of existing measures that could play as pseudo-correlation coefficients, Cramer's V coefficient is selected for the best result among them. To show the detailed procedure of the proposed method, a specific demonstration with the data from 329 R&D projects conducted in 18 private laboratories in electric and electronics industry is presented.