• 품질경영학회지
• /
• 제22권2호
• /
• pp.89-97
• /
• 1994

We consider the linear calibration model: $y_1={\alpha}+{\beta}x_i+{\sigma}{\varepsilon}_i$, i = 1, ${\cdots}$, n, $y={\alpha}+{\beta}x+{\sigma}{\varepsilon}$ where ($y_1$, ${\cdots}$, $y_n$, y) stands for an observation vector, {$x_i$} fixed design vector, (${\alpha}$, ${\beta}$) vector of regression parameters, x unknown true value of interest and {${\varepsilon}_i$}, ${\varepsilon}$ are mutually uncorrelated measurement errors with zero mean and unit variance but otherwise unknown distributions. On the basis of simple small-sample low-noise approximation, we introduce a new method of comparing the mean squared errors of the various competing estimators of the true value x for finite sample size n. Then we show that a class of estimators including the classical and the inverse estimators are consistent and first-order efficient within the class of all regular consistent estimators irrespective of type of measurement errors.

• Journal of Korean Biological Nursing Science
• /
• 제21권1호
• /
• pp.70-76
• /
• 2019

Purpose: The aim of this study is to identify the influence of chronotype and self-efficacy on drinking problem in undergraduate students. Methods: A cross-sectional survey design was adopted for the 177 undergraduate students in D, G, and K city in 2017. The data was analyzed for descriptive statistics, t-test, ANOVA, Pearson's correlation coefficients and multiple regression analysis using the SPSS 18.0 program. Results: Chronotype (${\beta}=-.31$, p< .001), self-efficacy (${\beta}=27$, p< .001) and religion (${\beta}=-.19$, p= .005) were identified as the factors influencing drinking problem in the subjects. The model explained 19% of variance in drinking problem (F= 11.36, p< .001). Conclusion: It is necessary to develop and apply a program that would consider chronotype and self-efficacy factors to reduce the drinking problem in undergraduate students.

• 보건행정학회지
• /
• 제10권2호
• /
• pp.120-130
• /
• 2000

Studies on the relation between socio-economic factors and metermal and child health have found that poverty, lack of edcation, inappropriate health serives are affecting to maternal and child health. The Gender Related Development Index (GDI) focuses on equality between men and women as well as on the average achiement of all people taken together, using same cariables as the Human Development Index (HDI) which are life expectancy, literacy rate, and per capita GDP. This research is to inverstigate whether HDI and GDI are useful determinants for maternal infant mortality. Using 146 UN member countries date, we condented multiple regression analysis for maternal and infant mortality with three models which are Model(individual variables-literacy rate, per capita GDP), Model(HDI) and Model(GDI). The results showed that HDI and GDI are powerful determinants of both maternal and infant mortality, respectively HDI($\beta$=-1.18, t=3.3; $\beta$=1.04, t=5.1) GDI($\beta$=-1.44, t=3.9; $\beta$=1.28, t=6.5) The higher power in model with GDI for both maternal and infant mortalities represented that GDI was more powerful determinant of maternal and infant mortality, than HDI respectively HDI($R^2$=0.824, $R^2$=0.842), GDI($R^2$=0.834, $R^2$=0.865). In conclusion, the maternal and infant mortalities are explained by GDI than HDI and may be lower in the societies where there are less discimination between men and women.

• 동서간호학연구지
• /
• 제13권1호
• /
• pp.40-47
• /
• 2007

Purpose: This study has been attempted in order to confirm the factors that affect the healthpromotion lifestyle of nurses. Method: Data was collected by questionnaires from 324 nurses at 5 university hospitals located in Seoul. The instrument tools utilized in this study was health-promotion lifestyle, perceived health status, perceived benefits, perceived barriers, self-efficacy, and social support, and validity and reliability of the tool have been verified with literature studies and pre-study examinations. The collected data have been analyzed using SPSS PC 12 program. Result: The factors that affect health-promotion lifestyle of nurses were perceived health status ($\beta$= .320), self-efficacy ($\beta$= .248), social support ($\beta$= .139), perceived benefits ($\beta$= .207), and age ($\beta$= .089), that altogether explained 41.1%. Conclusion: It has been confirmed that th regression equation model of this research may serve as a health- promotion lifestyle prediction factors in nurses.

• 중환자간호학회지
• /
• 제11권3호
• /
• pp.58-70
• /
• 2018

Purpose : This study examined the factors influencing posttraumatic and conflict management styles for nursing performance in intensive care units (ICUs). Methods : In this study, 250 nurses from eight general hospitals in three cities participated. Structured self-report questionnaires were used to collect data on posttraumatic, conflict management styles, and nursing performance. Finally, the data were analyzed by SAS 9.3 program. Results : The mean of total sum scores was 31.29, and the high risk of posttraumatic symptoms was 61.2%. It was noted that nursing performance is significantly correlated with collaboration, compromise, accommodation styles, and intrusion. Collaboration styles (${\beta}=0.39$, p<.001) and hyperarousal (${\beta}=-0.22$, p=.050), ICU experience below 1 year (${\beta}=-0.21$, p=.027) and that of 5-10 years (${\beta}=-0.19$, p=.049), and compromise style (${\beta}=0.16$, p=.049) were found to be the factors influencing nursing performance with 35.9% explanatory power value of regression model. Conclusions : The results of the study reveal that conflict management styles, hyperarousal, and ICU experience are factors predicting the successful performance of ICUs. These findings emphasize the need of developing interventions to reduce stress symptoms and conflicts in ICUs.

• 한국직업건강간호학회지
• /
• 제28권1호
• /
• pp.64-74
• /
• 2019

Purpose: The purpose of this study was to identify the influencing factors on burnout after analyzing the relationship among clinical nurses' various perfectionism and coping styles. Methods: A descriptive, cross-sectional study was conducted with 200 clinical nurses who had six months or more years of clinical experiences from two general hospitals located in D city. The data were analyzed by t-test, one-way ANOVA, Pearson's correlation coefficients, and stepwise regression analysis using IBM SPSS statistics 23.0 program. Results: The burnout of clinical nurses was positively correlated with socially prescribed perfectionism and negatively correlated with active coping style. Socially prescribed perfectionism was positively correlated with active coping style and passive coping style. Influencing factors on the burnout of clinical nurses were socially prescribed perfectionism (${\beta}=.37$), satisfied work unit (${\beta}=-.64$) and neutral satisfaction of work unit (${\beta}=-.27$), over 40 years of age (${\beta}=-.21$), and active coping style (${\beta}=-.14$). The model consisting of these variables explained 42% of variance of burnout in clinical nurses. Conclusion: Based on the findings of this study developing intervention programs that consider influencing factors such as perfectionism and coping styles is needed to reduce the level of burnout of clinical nurses.

• 아태비즈니스연구
• /
• 제13권4호
• /
• pp.163-175
• /
• 2022

Purpose - This study introduces a methodology for finding the optimal tracking error of active stock funds. Tracking error is commonly used in risk budgeting techniques as a concept of cost for alpha creation. Design/methodology/approach - This study uses a post-optimal smart beta portfolio that maximizes alpha under the given tracking error constraint. Findings - As a result of the analysis, the smart beta strategy that maximized alpha under the constraint of 0.15% daily tracking error shows the highest IR. This means the maximum theoretically achievable efficiency. In this regard, a fixed-effect panel regression analysis is conducted to evaluate the active efficiency of domestic stock funds. In addition to control variables based on previous studies, the effect of tracking error on alpha is analyzed. The alpha used in this model is calculated using the smart beta portfolio according to the size of the constraint of the tracking error as a benchmark. Contrary to theoretical estimates, in Korea, the alpha performance is maximized under a daily tracking error of 0.1%. This indicates that the active efficiency of domestic equity funds is lower than the theoretical maximum. Research implications or Originality - Based on this study, it is expected that it can be used for active risk management of pension funds and performance evaluation of active strategies.

• 한국산학기술학회논문지
• /
• 제14권7호
• /
• pp.3301-3309
• /
• 2013

본 연구의 목적은 간호대학에 재학하는 학생을 대상으로 자아존중감, 전공만족도, 진로동기 간의 관련성을 파악하고, 자아존중감과 전공만족도가 진로동기에 미치는 영향을 확인하기 위함이다. 자료수집은 부산시 소재 3년제 간호대학 2개교와 경상남도 소재 3년제 간호대학 2개교에서 간호대학생 369명을 대상으로 구조화된 설문지로 조사하였다. 수집된 자료는 SPSS WIN 18.0을 이용하여 one-way ANOVA, Pearson's correlation coefficients, multiple regression으로 분석하였다. 연구대상자의 자아존중감과 진로동기, 전공만족도과 진로동기, 자아존중감과 진로동기 간에 각각 유의한 양의 상관관계가 있었다. 대상자의 진로동기에 영향을 미치는 요인은 전공만족도(${\beta}$=.48)와 자아존중감(${\beta}$=.23)으로 나타났으며, 총 설명력은 34.5%였다. 본 연구를 통하여, 진로동기에 영향을 미치는 다양한 요인들을 파악하고 진로동기를 높일 수 있는 프로그램의 개발이 필요하다.

• Journal of Korean Biological Nursing Science
• /
• 제19권3호
• /
• pp.170-177
• /
• 2017

Purpose: This study was to identify factors influencing the quality of sleep in elderly women with urinary incontinence and examine the relationship among the factors. Methods: The study investigated 113 elderly women with urinary incontinence who were subject to the visiting care program at health centers in D-gu, D-si, South Korea. The collected data were analyzed using IBM SPSS version 19.0 along with ${\chi}^2-test$, t-test, ANOVA, Pearson's correlation, and multiple regression. Results: The total Pittsburgh Sleep Quality Index (PSQI) of the participants was found to be $11.41{\pm}4.34$. As a result of the correlation analysis, PSQI was found to have significant correlations with Female Lower Urinary Tract Symptoms (BFLUTS) (r= .32, p< .001). The Korean version of Physical Activity Scale for Elderly (K-PASE) was (r= -.34, p< .001) and the Geriatric Depression Scale Short Form (GDS-SF) was (r= .23, p= .012). Multiple regression analysis found sleeping pill use (${\beta}=-.35$, p< .001) had the strongest influence on PSQI, followed by physical activity (${\beta}=-.20$, p< .001), depression (${\beta}=.20$, p< .001), and lower urinary tract symptoms (${\beta}=.19$, p< .001). The total model explanatory power was 28.3% (F= 12.07, p< .001). Conclusion: The study findings are expected to be useful for enhanced understanding of the quality of sleep in elderly women with urinary incontinence.

• 한국컴퓨터정보학회논문지
• /
• 제23권5호
• /
• pp.31-39
• /
• 2018

In this paper, we purpose to describe the relationship and influencing factors among emotional labor, ego-resilience on organizational commitment on nurse. We employed a nonexperimental survey research design. The data included 160 nurses three hospitals in Chungchungbukdo and Kangwondo. The data were collected from 23th, August, 2016 to 15th, September using self-report, strutured questionnaires. The data were analyzed through ANOVA, t-test, Pearson correlation coefficient and multiple regression with SPSS 20.0. The results showed emotional labor, ego-resilience on organizational commitment averaged 3.80(out of 4), 2.81(out of 4), 3.86(out of 5). In terms of correlations, there was found to be a significant positive correlation between organizational commitment and ego-resilience(r=.418, p<.01) and negative correlation between organizational commitment and emotional labor(r=.309, p<.001). Age(${\beta}=.215$, p<.037), working department(${\beta}=-.209$, p<.011), emotional labor(${\beta}=.334$, p<.001), ego-resilience(${\beta}=.162$, p<.030) was largely influential in organizational commitment. The regression model explained 21.3% of organizational commitment. This study showed that organizational commitment of nurse was correlated with emotional labor and ego-resilience. On basis of these results, in order to increase organizational commitment on nurses, it is necessary to recognize the importance of emotional labor and ego-resilience, develop and adapt program reducing emotional labor, also increasing ego-resilience.