• Korean Journal of Clinical Laboratory Science
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• v.45 no.2
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• pp.60-65
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• 2013

Data from repeated measurements are accomplished through repeatedly processing the same subject under different conditions and different points of view. The power of testing enhances the choice of pertinent analysis methods that agrees with the characteristics of data concerned and the situation involved. Along with the clinical example, this paper compares the analysis of the variance on ex-post tests, gain score analysis, analysis by mixed design and analysis of covariance employable for repeating measure. Comparing the analysis of variance on ex post test, and gain score analysis on correlations, leads to the fact that the latter enhances the power of the test and diminishes the variance of error terms. The concluded probability, identified that the gain score analysis and the mixed design on interaction between "between subjects factor" and "within subjects factor", are identical. The analysis of covariance, demonstrated better power of the test and smaller error terms than the gain score analysis. Research on four analysis method found that the analysis of covariance is the most appropriate in clinical data than two repeated test with high correlation and ex ante affects ex post.

• Journal of the Korean Society of School Health
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• v.15 no.2
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• pp.167-182
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• 2002

The purpose of this study was to examine the factors related to adolescence' post-sexual assault attitudes and behaviors. 906 students from 5girls high schools completed self-reported questionnaires. Independent variables are sexual attitudes, rape myth acceptance, perceived importance of sexuality education, parent sexuality education, parent closeness, parent superintendence, family functioning and socioeconomic variables. The data were analyzed by Factor Analysis, Correlation Analysis, Stepwise Multiple Regression Analysis using SPSS program. The significant influencing factors were home sexuality education, perceived necessity & importance of sexuality education, parent closeness, parent superintendence, family functioning, grade, vocational school, rape myth(rapists are mentally ill, dating partner would not be rapist. rapists are stranger), sexual attitudes(sexual permissiveness, gender equality, family planning, STDs & prostitution, marriage and divorce and abortion), and dating experience. Examination of barriers to post-sexual assault coping behaviors and attitudes is critical component of victim recovery and rape prevention. This study would gives basic information to the effective prevention and coping program development related to sexual assault.

• Journal of Korean Clinical Nursing Research
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• v.28 no.2
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• pp.99-111
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• 2022

Purpose: This study aimed to identify the relationship between the experiences of workplace violence and post-traumatic stress disorder and the moderating effect of resilience and social support at work on the relationship in tertiary hospital nurses. Methods: This was a descriptive correlation study to confirm the moderating effect of resilience and social support at work on the factors affecting post-traumatic stress disorder for nurses who have experienced violence. A total of 146 registered nurses were recruited from a tertiary hospital from March to July 2020. The Participants who worked for more than one year and experienced violence at work completed self-reported questionnaires that measured the experiences of workplace violence and post-traumatic stress disorder, resilience, social support at work, and demographic information. The collected data were analyzed using t-test, ANOVA, Pearson's correlation coefficient, and hierarchical regression analysis. Results: The nurses experienced verbal abuse an average of 3.70±2.06 times a week, physical threat an average of 2.30±1.71 times a month, and physical assault an average of 0.76±0.82 times a year. The Experiences of workplace violence were significantly increased post-traumatic stress disorder. The result also showed that resilience moderated the relationship between the experience of verbal abuse and post-traumatic stress disorder in hospital nurses. However, there was no significant moderating effect of social support between workplace violence and post-traumatic stress disorder. Conclusion: The experiences of workplace violence influenced post-traumatic stress disorder in nurses and were moderated by resilience. Therefore, hospital administrators need to develop and provide a workplace violence prevention and resilience reinforcement program to reduce post-traumatic stress disorder in nurses. In addition, we suggest further research on the effect of social support in a workplace on the experiences of violence.

• Nuclear Engineering and Technology
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• v.54 no.9
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• pp.3205-3214
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• 2022

The aim of this study is to provide a clear and accessible method to obtain accurate true-stress strain data, and to extend the limited material data beyond the ultimate tensile strength (UTS) for AISI 304L. AISI 304L is used for the outer construction for some types of nuclear transport packages, due to its post-yield ductility and high failure strain. Material data for AISI 304L beyond UTS is limited throughout literature. 3D digital image correlation (DIC) was used during a series of uniaxial tensile experiments. Direct method extracted data such as true strain and instantaneous cross-sectional area throughout testing such that the true stress-strain response of the material up to failure could be created. Post processing of the DIC data has a considerable effect on the accuracy of the true stress-strain data produced. Influence of subset size and smoothing of data was investigated by using finite element analysis to inverse model the force displacement response in order to determine the true stress strain curve. The FE force displacement response was iteratively adapted, using subset size and smoothing of the DIC data. Results were validated by matching the force displacement response for the FE model and the experimental force displacement curve.

• Journal of Korean Academy of Nursing Administration
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• v.9 no.1
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• pp.141-150
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• 2003

Purposes : This study was to investigate the job stress and turnover intention related to transfer of duty post of staff nurses working in general hospitals. Method : The subjects of this study were 384 staff nurses working in 6 general hospitals, with more than 200 beds, in Daegu and Kungbuk province in Korea. Data were collected through questionnaires and from Sep. 15 to Oct. 6, 2001. The used tool for measuring the degree of job stress was developed by Kim and Gu(1984) and the used tool for measuring the degree of turnover intention was developed Kim and Lee(2001). The data were analyzed into frequency, percentage, mean, standard deviation, t-test, ANOVA, Tukey's post hoc contrast, Pearson's correlation coefficient according to the purpose of study by use SPSS Win 10.0 statistical program. Results : The following are the results of the study: (1) Average score of the job stress, turnover intention of resignation of the subjects were 2.64 and 4.44. (2) The result of the analysis of job stress related to transfer of duty post was higher in job stress; not satisfaction of current duty post(t=-2.06, p=0.04). (3) The result of the analysis of turnover intention related to transfer of duty post was higher in turnover intention; period of the an advance notice when transfer to current duty post less than 7day(F=3.55, p=0.02), not satisfaction of current duty post(t=-2.45, p=0.02), want the transfer from current duty post(t=3.68, p=0.00). (4) The study reveals that there was statistically significant positive correlation relationship between job stress factors and turnover intention(r=.183, p=.000). Conclusion : The study which relating to period of the an advance when transfer and satisfaction of current duty post and reconsideration of transfer of duty post shows statistically significant difference between job stress and turnover intention. Therefore it is regarded that is needed to set a period of profer advance notice, grip on unsatisfactory factor of current duty post and intervention and management of the subjects were wanted transfer of duty post.

• Proceedings of the Korean Geotechical Society Conference
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• 2003.03a
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• pp.265-272
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• 2003

In this study, the rock mass classification results from the face mapping and the resistivity inversion data are compared and analyzed for the reliability investigation of the determination of the rock support type based on the surface electrical survey. To get the quantitative correlation, rock engineering indices such as RCR(rock condition rating), N(Rock mass number), Q-system based on RMR(rock mass rating) are calculated. Kriging method as a post processing technique for global optimization is used to improve its resolution. The result of correlation analysis shows that the geological condition estimated from 2D electrical resistivity survey is coincident globally with the trend of rock type except for a few local areas. The correlation between the results of 3D electrical resistivity survey and the rock mass classification turns out to be very high. It can be concluded that 3D electrical resistivity survey is powerful to set up the reliable rock support type.

• The Journal of the Convergence on Culture Technology
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• v.9 no.2
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• pp.37-49
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• 2023

The purpose of this study was to determine the correlation between the COVID-19 related post-traumatic stress, nursing work environments, and the resilience among nurses in Tertiary General Hospitals. Data were collected from 155 nurses who directly cared for COVID-19 patients and were working at the K University D Hospital in D Metropolitan City using an online survey. The SPSS 28.0 program was used for data analysis. Based on the results of the survey, post-traumatic stress showed a significant negative correlation with the nursing work environments(r=-.17, p<.001), and the nursing work environments showed a significant positive correlation with the resilience of nurses(r=.20, p<.001). Through the results of this study, it is necessary to improve the nursing work environments for managing post-traumatic stress, to build an active support system by securing manpower from the government, and to develop and apply intervention programs for improving the resilience of nurses in the COVID-19 situation.

• Journal of the Korea Safety Management & Science
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• v.26 no.2
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• pp.107-115
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• 2024

This study conducted frequency analysis, reliability analysis, descriptive statistics, and correlation analysis to determine the impact of quality control managers' perception and implementation of KS certification factory inspection evaluation items on follow-up management. Through a multiple linear regression model, the influence of KS certification officer's awareness and implementation of KS certification factory inspection on post management was found to have a positive (+) influence on post management, with implementation having a greater influence on post management than awareness. It was having an impact. The independent variable (perception) has a statistically significant impact on the mediating variable (execution), and in the stage of verifying the mediating effect, the influence of the independent variable (perception) on the dependent variable (follow-up management) has a statistically significant impact. , In the stage where the independent variable (perception) and the mediator (implementation) are input simultaneously, both the independent variable and the mediator have a statistically significant effect on the dependent variable, indicating that there is a mediation effect.

• International Journal of Concrete Structures and Materials
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• v.11 no.2
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• pp.365-375
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• 2017

An experimental evaluation of crack propagation and post-cracking behavior in steel fiber reinforced concrete (SFRC) beams, using full-field displacements obtained from the digital image correlation technique is presented. Surface displacements and strains during the fracture test of notched SFRC beams with volume fractions ($V_f$) of steel fibers equal to 0.5 and 0.75% are analyzed. An analysis procedure for determining the crack opening width over the depth of the beam during crack propagation in the flexure test is presented. The crack opening width is established as a function of the crack tip opening displacement and the residual flexural strength of SFRC beams. The softening in the post-peak load response is associated with the rapid surface crack propagation for small increases in crack tip opening displacement. The load recovery in the flexural response of SFRC is associated with a hinge-type behavior in the beam. For the stress gradient produced by flexure, the hinge is established before load recovery is initiated. The resistance provided by the fibers to the opening of the hinge produces the load recovery in the flexural response.

• The Journal of the Korea Contents Association
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• v.16 no.12
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• pp.507-517
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• 2016

This study examines the types and characteristics of traumatic events middle-aged women experience and to explore the effects of attachment in the process of post-traumatic growth and forming a self-realization. 221 of participants were middle-aged women from the area of Seoul, Gyeong-Gi and the survey was composed of post-traumatic experience questionnaire, attachment scale, post-traumatic growth scale, self-realization scale. The type and characteristics of traumatic experience by middle-aged women were executed by frequency analysis and correlation with the structural equation model validation was used in order to analyze the relationship between each variable. the major findings are First, the loss of someone close(such as death, breaking up, divorce, breaking off) was reported as something general yet the biggest crisis event, Second, looking at the relationship between attachment, post-traumatic growth and self-realization, the secure parental attachment and spiritual transformation showed the correlation in all subregions except the subvariables of humanity and self-acceptance and Third, the results of Structural Equation Modeling shows that attachment has a static effect on post-traumatic growth and self-realization, and post-traumatic growth appeared to be the mediating factor of attachment and self-realization.