• Journal of Korean Academy of Fundamentals of Nursing
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• v.20 no.3
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• pp.220-229
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• 2013

Purpose: The purpose of the study was to investigate activities-specific balance confidence and risk of fallings among rehabilitation patients with impaired of mobility, and to identify the influence of activities-specific balance confidence on their risk of fallings. Method: Data for 132 rehabilitation patients were collected between October June 20 and August 20, 2012 at nine hospitals in a metropolitan city. Data were analyzed using t-test, ANOVA, Pearson correlation coefficient and stepwise multiple regression with SPSS/WIN 20.0. Result: The mean score for rehabilitation patients' activities-specific balance confidence was 40.18 out of a possible range of 0-100 and the mean score for risk of fallings among rehabilitation patients was 31.10 within a possible range of 0-125. Significant factors affecting the risk of fallings among the rehabilitation patients were 'activity level', 'dementia', 'body mass index', 'anxiety', and 'presence of a caregiver', which together explained 34.7% of the variance. The most significantly factor influencing rehabilitation patients' risk of fallings was activities-specific balance confidence which explained 23.5% of the variance. Conclusion: The study results indicate that activities-specific balance confidence as well as physical factors should be considered for interventions to decrease risk of fallings in rehabilitation patients with impaired mobility.

• Korean Parent-Child Health Journal
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• v.10 no.2
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• pp.99-109
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• 2007

Purpose: The purpose of this study was to examine the effects of providing information on Stress and maternal role confidence of pregnant women with preterm labor. Methods: The sample were 66 pregnant women with preterm labor admitted at 1 hospital in Busan. In the subjects, 33 were the experimental group and 33 were the control. Data was collected from March 1st to October 31st, 2007. A hand-out including the knowledge of preterm labor, fetus state and curing process. The tool for the stress had 14 questionnaires including the levels of anxiety and depress. And the tool for the maternal role confidence had 23 questionnaires. The data analyzed by $X^2$-test, t-test and pearson correlation coefficient with SPSS 12.0/pc program. Results: After providing information, the stress of the experimental group decreased significantly than the control(t=1.95, p=.048). And the maternal role confidence of the experimental group increased significantly than the control(t=-2.40, p=.016). There is a significant correlation between the stress and maternal role confidence(p<.01). Conclusion: The special program or educational nursing intervention should be created for each pregnant women with preterm labor and ante-natal nursing service may assessed and consulted on anxiety-depression and maternal role confidence.

• The Research Journal of the Costume Culture
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• v.20 no.2
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• pp.272-285
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• 2012

The purpose of the study is to examine the role of consumer perceptions of websites' entertainment and informativeness in developing their attitudes (attitude toward the retailer and attitude confidence toward the product) in the context of apparel e-tailing. A structural equation model was developed for an empirical test based on the literature on uses-and-gratifications and attitude confidence. A sample of 119 consumers who live in the United States participated in the online survey. The results generally supported the proposed model. Specifically, the analyses revealed that consumers' purchase intention toward the displayed product is positively influenced by their attitudes toward the retailer and by their confidence in their attitudes toward the product. Interestingly, only one of the two cognitive antecedents, perceived entertainment, has a positive impact on consumers' attitude toward the retailer. Perceived informativeness, however, had a positive impact on attitude confidence. These findings suggest that consumers who have high perception of an e-tail website's entertainment are more likely to exhibit favorable attitudes toward the e-tailer, while consumers who have high perception of an e-tail website's informativeness are more likely to hold strong confidence in their attitudes toward the product displayed on the website. Both consumer attitudes toward the e-tailer and their attitude confidence lead to their purchase intentions.

• Child Health Nursing Research
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• v.10 no.3
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• pp.311-320
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• 2004

Purpose: To investigate the relationships among mother's perception of her own newborn, her caring-confidence level, and her child-rearing attitude; and to provide data for developing effective nursing education programs on maternal newborn care. Method: Explorative survey questionnaires were completed by 159 married mothers of newborns from November 2003 to March 2004. Data were analyzed using SPSS/Win 10.0 by t-test and Pearson's Correlation coefficient. Result: The mean scores of the mother's perception of her own newborn, her caring- confidence level, and her child-rearing attitude were .26, 3.13, and 3.43 respectively. There was a positive correlation between mother's perception of her own newborn and her child-rearing attitude. There was a significant correlation between mothers caring-confidence level and her child-rearing attitude. Score of caring-confidence was significantly different depending on the availability of helper and history of delivery. Conclusion: Availability of helper and history of delivery significantly affected mothers caring-confidence. This in turn, along with mothers perception of her own newborn, enhanced mothers child-rearing attitude. Thus, an effective education for mothers should include these factors.

• International Journal of Reliability and Applications
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• v.7 no.2
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• pp.177-186
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• 2006

Typical confidence intervals for a mean or mean residual life (MRL) are centered about the mean or mean residual life. We discuss novel confidence intervals that produce statements like "we are 95% confident that the MRL function, e(t), is greater than a prespecified $\mu_o$ for all t in the interval [0, $\hat{\theta})$)" where $\hat{\theta}$ is determined from the sample data, confidence level, and $\mu_o$. Also, we can have statements like 'we are 95% confident that the MRL of population 1, namely $e_1$(t), is greater than the MRL of population 2, $e_2$(t), for all t in the interval [0, $\hat{\theta}$)" where $\hat{\theta}$ is determined from the sample data and confidence level. We illustrate these one and two sample confidence intervals on internal bonds (tensile strengths) for an important modem engineered wood product, called medium density fiberboard (MDF), used internationally.

• The Journal of Korean Academic Society of Nursing Education
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• v.13 no.1
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• pp.66-73
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• 2007

Purpose: The study was aimed to investigate the related variables with child care teachers in early childhood care and education centers affecting their self-confidence of safety performance for the children. Method: Structured questionnaires were distributed and self administered by the child care teachers in early childhood care and education centers. The study participants consisted of 482 teachers in early childhood care and education centers in Seoul. 394 questionnaires were analyzed for this study. SPSS 12.0 for Windows was used to analyze the collected data. Result: Teachers' knowledge on safety, teachers' beliefs in safety performance teachers' self-efficacy, and social support were statistically related to confidence in safety performance significantly with positive relationship. Job stress was related to confidence in safety performance with significant negative relationship. After binding each 4 clusters of variables, the most significant teacher related variables affecting teachers' confidence in safety performance was teachers' knowledge on safety statistically significantly, and those 4 variables explained 22.2% of teachers' confidence in safety performance. Conclusion: 4 related variables, teachers' knowledge on safety, teachers' self-efficacy, teachers' exposure to safety education, and social support, were identified significant factors affecting self-confidence of childcare teachers' safety performance for the children.

• Women's Health Nursing
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• v.12 no.3
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• pp.231-239
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• 2006

Purpose: This study was done to investigate differences in maternal role confidence and parenting stress according to the infant's feeding method. Method: The participants were 257 mothers of infants aged 5$\sim$7 months. 145 breast-feeding mothers and 112 bottle-feeding mothers participated. The Maternal Role Confidence Scale and Parenting Stress Index(PSI) were used. Results: The score of maternal role confidence of breast-feeding mothers (3.28) was significantly higher than that of bottle-feeding mothers(2.84). In addition, the parenting stress level of breast-feeding mothers(1.80) was lower than that of bottle-feeding mothers(2.97). However, the scores of maternal role confidence and the parenting stress level were not different according to the mother's and infant's personality characteristics. There was a significant negative correlation between the score of maternal role confidence and parenting stress levels(r=-.55, p<.001). Conclusion: Breast feeding mothers had more confidence of their maternal role, and a lower parenting stress level. Therefore, nurses must encourage infant mothers to breast feed since it is the best option for mothers as well as infants.

• 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.

• Genomics & Informatics
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• v.18 no.3
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• pp.31.1-31.8
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• 2020

The coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has become a global pandemic. No specific therapeutic agents or vaccines for COVID-19 are available, though several antiviral drugs, are under investigation as treatment agents for COVID-19. The use of convalescent plasma transfusion that contain neutralizing antibodies for COVID-19 has become the major focus. This requires mass screening of populations for these antibodies. While several countries started reporting population based antibody rate, its simple point estimate may be misinterpreted without proper estimation of standard error and confidence intervals. In this paper, we review the importance of antibody studies and present the 95% confidence intervals COVID-19 antibody rate for the Korean population using two recently performed antibody tests in Korea. Due to the sparsity of data, the estimation of confidence interval is a big challenge. Thus, we consider several confidence intervals using Asymptotic, Exact and Bayesian estimation methods. In this article, we found that the Wald method gives the narrowest interval among all Asymptotic methods whereas mid p-value gives the narrowest among all Exact methods and Jeffrey's method gives the narrowest from Bayesian method. The most conservative 95% confidence interval estimation shows that as of 00:00 on September 15, 2020, at least 32,602 people were infected but not confirmed in Korea.

• Journal of applied mathematics & informatics
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• v.42 no.2
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• pp.257-281
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• 2024

In real life, a decision-maker can assign multiple values for pairwise comparison with a certain confidence level. Studies incorporating multi-choice parameters in multi-criteria decision-making methods are lacking in the literature. So, In this work, an extension of the Best-Worst Method (BWM) with multi-choice pairwise comparisons and multi-choice confidence parameters has been proposed. This work incorporates an extension to the original BWM with multi-choice uncertainty and confidence level. The BWM presumes the Decision-Maker to be fully confident about preference criteria vectors best to others & others to worst. In the proposed work, we consider uncertainty by giving decision-makers freedom to have multiple choices for preference comparison and having a corresponding confidence degree for each choice. This adds one more parameter corresponding to the degree of confidence of each choice to the already existing MCDM, i.e. multi-choice BWM and yields acceptable results similar to other studies. Also, the consistency ratio remained low within the acceptable range. Two real-life case studies are presented to validate our study on proposed models.