• Journal of Family Relations
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• v.23 no.2
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• pp.89-109
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• 2018

Objectives: The study aims to examine the influence of university students' sociodemographic variables, parents' variables, and personal variables on their level of depression. Method: The study included a total of 334 university students enrolled in Busan. The data were used to perform correlational analysis and hierarchical regression analysis and were processed using the SPSS 23.0 program. Results: The main results of this study were as follows: First, the hierarchical regression analyses revealed that the most influential model was the model of personal variables. Among the personal variables, self-esteem was the most influential factor responsible for university students developing depression - the higher their level of self-esteem, the lower their level of depression. Among the parent variables, attachment to their father was the second most significant influence on the depression level of university students. Conclusions: This study showed that, in addition to attachment to their father, their self-esteem was highly significant in predicting university students' depression. The results of these findings have implications for future research in the form of programs and education to improve the relationship with fathers. Furthermore, the results of this study could be used to help and provide basic resources to alleviate and prevent university students' depression by strengthening their self-esteem.

• Journal of Industrial Convergence
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• v.21 no.9
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• pp.103-111
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• 2023

This study was therefore undertaken to investigate the effects of club activities on the communication skills and psychological well-being of nursing students. Convenience sampling method was applied for 101 students enrolled in the nursing department of university in K city, of which 78 subjects participated in club activities. Data was collected from October 31 to November 30, 2022. Data were analyzed by t-test, and hierarchical multiple regression.The average score for Communication skill was 3.97±0.47, psychological well-being values was 3.62±0.44. Statistically communication skill showed a significantly environmental control(β=.27,p=.010) and positive interpersonal relationships(β=.23, p=.026)accounting for 46.8% of the total change and psychological well-being were significantly influenced by communication(β=.29, p=.009) accounting for 47% of the total change. Based on the results of this study, educational strategies and programs are needed to improve the communication skill and psychological well-being of nursing students.

• Earthquakes and Structures
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• v.4 no.5
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• pp.509-525
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• 2013

In this paper, learning capabilities of two types of Arterial Neural Networks, namely hierarchical neural networks and Generalized Regression Neural Network were used in a two-stage approach to develop a method for generating spatial varying accelerograms from acceleration response spectra and a distance parameter in which generated accelerogram is desired. Data collected from closely spaced arrays of seismographs in SMART-1 array were used to train neural networks. The generated accelerograms from the proposed method can be used for multiple support excitations analysis of structures that their supports undergo different motions during an earthquake.

• Journal of the Korean Data and Information Science Society
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• v.27 no.2
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• pp.499-510
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• 2016

It is very important to select relevant variables in regression models for survival analysis. In this paper, we introduce a penalized variable-selection procedure in multi-level frailty models based on the "frailtyHL" R package (Ha et al., 2012). Here, the estimation procedure of models is based on the penalized hierarchical likelihood, and three penalty functions (LASSO, SCAD and HL) are considered. The proposed methods are illustrated with multi-country/multi-center bladder cancer survival data from the EORTC in Belgium. We compare the results of three variable-selection methods and discuss their advantages and disadvantages. In particular, the results of data analysis showed that the SCAD and HL methods select well important variables than in the LASSO method.

• Journal of Korean Academy of Nursing Administration
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• v.7 no.1
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• pp.41-51
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• 2001

Today's health care environment is rapidly changing and nurse administrators' leadership styles need to identify in nursing organization to achieve organizational objectives. By Bass(1985), transformational leadership stimulates the subordinates to be creative and achieve organizational objectives and is related to job satisfaction, job involvement, productivity, and organizational commitment. Transformational leadership process consists of charisma, intellectual stimulation, individual consideration. The purpose of this study is to identify the effect of transformational leadership and personal characteristics on nurses' organizational commitment. The subjects for this study consisted of 594 nurse from 8 University Hospitals and General Hospitals. The data were collected by personal characteristics scale, transformational leadership scale, and organizational commitment scale. The factor analysis, Cronbach's alpha analysis, Pearson correlation analysis, multiple regression analysis and hierarchical multiple regression analysis were used for the statistical method. The results of this study were found that (1) charisma dimension of transformational leadership has positive influence on nurses' organizational commitment; but another two dimensions(intellectual stimulation and individualized consideration) did not showed significant effect on organizational commitment (2) nurses' personal characteristic(internal locus of control) moderated the effect of transformational leadership on organizational commitment.

• Journal of Korean Public Health Nursing
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• v.15 no.2
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• pp.249-261
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• 2001

Today's health care environment is rapidly changing and nurse administrators' leadership styles need to identify in nursing organization to achieve organizational objectives. By Bass(1985), transformational leadership stimulates the subordinates to be creative and achieve organizational objectives and is related to job satisfaction, job involvement, productivity, and organizational commitment. Transformational leadership process consists of charisma, intellectual stimulation, individual consideration. The purpose of this study was to identify the effect of transformational leadership and personal characteries on nurses' job involvement. The subjects for this study consisted of 594 nurses from 8 University Hospitals and General Hospitals. The data were collected by personal characteristics scale, transformational leadership scale, and job involvement scale. The factor analysis, Cronbach's alpha analysis, Pearson correlation analysis, multiple regression analysis and hierarchical multiple regression analysis were used for the statistical method. The results of this study were found that (1) charisma dimension of transformational leadership has positive influence on nurses' job involvement ; but another two dimensions (intellectual stimulation and individualized consideration) did not showed significant effect on job involvement (2) nurses' personal characteristic (internal locus of control) moderated the effect of transformational leadership on job involvement.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.26 no.2
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• pp.107-116
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• 2019

Purpose: The purpose of this study was to identify factors with nursing students's confidence in performing fundamental nursing skills. The focus was on professionalism and self-efficacy. Method: For the sample 258 fourth graders of nursing students were recruited in two universities located in Gyeongnam or Ulsan. Data were analyzed using t-test, Pearson's correlation coefficients, and hierarchical multiple regression. Results: The mean score for confidence in performing fundamental nursing skills was $3.71{\pm}0.58$. Nursing professionalism and self-efficacy were positively correlated with confidence in performing fundamental nursing skills. Analysis using multiple regression showed that 27% of factors predicting confidence in performance of fundamentals of nursing practice (F=16.43, p<.001) included nursing professionalism (${\beta}=.37$, p<.001), self-expression (${\beta}=.15$, p=.009), and self-efficacy (${\beta}=.14$, p=.029). Conclusion: Findings show that nursing professionalism is one of the major factors influencing confidence in performing fundamental nursing skills. In order to improve the confidence in performing fundamental nursing skills, it is necessary to establish effective educational strategies that firmly enhance nursing professionalism and improve self-efficacy in nursing students.

• The Korean Journal of Applied Statistics
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• v.34 no.2
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• pp.141-152
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• 2021

A new statistical model needs additional variables in order to re-evaluate the undecided inference. Then the MNAR assumption is required, since the probabilities for the positivity of the indeterminant and the determinant is calculated differently. In this study, since two statistical models have a hierarchical relationship, we determine the undecided inference under the MNAR assumption using the confidence interval of the difference between two AUCs. Among many methods of estimating the confidence interval of the AUC difference, it is found that four kinds of methods show excellent performance through simulations. And based on these methods, we propose a variable selection method that are useful for the undecided inference using logistic regression models.

• Child Health Nursing Research
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• v.30 no.1
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• pp.31-44
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• 2024

Purpose: This study aimed to identify the infant-rearing experiences of parents during the coronavirus disease 2019 (COVID-19) pandemic and provide foundational data for the development of infant-rearing support programs during pandemic situations. Methods: Convergent mixed methods were used to better understand the research outcomes by converging both quantitative and qualitative data. A total of 149 parents with infant-rearing experiences during the pandemic responded to a self-report survey, and 10 parents participated in the interviews. Data were analyzed using Colaizzi's method, descriptive statistics, t-test, one-way analysis of variance, the Scheffé test, Pearson correlation coefficients, and hierarchical regression. Results: Analysis of qualitative data yielded the following three categories: five theme clusters, ten themes, and thirty-nine subthemes. The factors influencing infant-rearing behavior were nuclear family (β=.34, p<.001) and rearing stress (β=-.39, p<.001). The explanatory power of the regression equation was 26.6%. Conclusion: Infectious disease disasters, such as the COVID-19 pandemic, can quickly alter infant-rearing conditions, causing heightened parental anxiety. This may affect infant-rearing behaviors and hinder healthy infant development. Future research should develop a comprehensive tool to measure holistic health-related parenting behaviors across the different stages of child development. Additionally, pediatric nurse practitioners can play an active role in educating parents, supporting parenting, and promoting healthy infant development in their communities, making pediatric nurse practitioners a highly relevant and necessary healthcare profession during infectious disease disasters. Thus, there is a need to improve institutions and build infrastructure at the national level to support them.

• Journal of the Korean Applied Science and Technology
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• v.38 no.2
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• pp.587-594
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• 2021

The purpose of this study is to examine how college students' stress coping in the post-corona era affect leisure constraint negotiations. To achieve the purpose of this study, from January 25th to February 19th, 2021, 247 copies were used for this study, excluding 13 questionnaires from Jeonbuk, Jeonnam, and Busan. For data analysis, descriptive statistics, confirmatory factor analysis, ANOVA and hierarchical regression analysis were performed using SPSS 21.0 and AMOS 18.0. As a result, there was a difference in leisure constraint negotiations according to changes in the types of leisure before and after COVID-19. According to the stress coping method of college students, it appears that it has a positive effect on the part of leisure constraint negotiations, so it is necessary to consider a detailed approach to the coping plan. In particular, it was confirmed that the active stress coping method(Active problem solving, Social support seeking) had a positive effect on the leisure constraint negotiations. Therefore, future research will require efforts to verify their relationship with various approaches to leisure constraints, leisure constraints negotiations, and stress and stress response strategies with COVID-19.