• Journal of the Korean Data and Information Science Society
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• 제19권4호
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• pp.1281-1288
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• 2008

The purpose of this study is to consider the efficient methods for introducing the confidence interval. We explain various concepts and approaches about the confidence interval estimation. Computing methods for calculating the efficient confidence interval are suggested.

• Child Health Nursing Research
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• 제14권2호
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• pp.155-162
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• 2008

Purpose: The purpose of this study was to provide basic data for the development of health and safety programs by examining child-care teacher's knowledge, self-confidence and practice concerning the health and safety of children under their care. Method: The participants were 72 teachers from 15 child care centers in Seoul City and Chung-Nam Province. Data were collected using self-report questionnaires. Data were analyzed using descriptive statistics, ANOVA and Pearson correlation coefficients with SPSS 12.0 Win program. Results: The mean score for self-confidence was lower than knowledge and practice. Self-confidence score about emergency care for falls, fractures and resuscitation were lowest. For safety knowledge, scores about facility and environment were lowest. For health knowledge, scores about disease and symptoms were lowest. For practice, scores about seat belts and safe furniture arrangement were lowest. Significant correlations were found between practice and self-confidence. There were significant differences in the degree of knowledge according to education, and in practice according to age. Conclusions: Health and safety education programs for child care teachers are necessary for the promotion of knowledge, self-confidence and practice in health and safety. The results suggest that health and safety education program should be provided systematically and continuously for child care teachers.

• 중환자간호학회지
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• 제13권1호
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• pp.1-14
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• 2020

Purpose : The purpose of this study was to identify the factors influencing the general hospital nurses' confidence about the advance directives (ADs). Methods : This is a descriptive cross-sectional study. A total of 105 nurses were asked questions about characteristics, knowledge, attitude, learning needs, and confidence the about ADs, using structured questionnaires. Data were analyzed by descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient, and multiple regression. Results : The mean scores of knowledge were 7.26±1.47; attitude, 2.80±0.31; learning needs, 4.22±0.62; and confidence, 2.57±0.74. It was observed that knowledge had significant correlations with attitude (r=.43, p<.001), learning needs (r=.29, p=.003), and confidence (r=.40, p<.001), and attitude had significant correlations with learning needs (r=.31, p=.001) and confidence (r=.45, p<.001). Using multiple regression analysis, it was found that confidence was significantly influenced by knowledge (β=.27, p=.007), attitude (β=.21, p=.043), and experience of nursing or counseling a patient who wrote ADs (β=-.19, p=.046). The explanatory power of this model was 37.9% (F=5.16, p<.001, R²=.379). Conclusions : These findings suggest the need to develop a program to enhance nurses' knowledge, positive attitude, and experience of nursing or counseling a patient who wrote ADs.

• 여성건강간호학회지
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• 제22권1호
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• pp.21-29
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• 2016

Purpose: This study aimed to develop supplementary material about the electronic fetal monitoring for nursing students, and to test the effects on electronic fetal monitoring related knowledge and confidence on nursing performance in delivery room. Methods: Totally 58 nursing students were recruited either experimental group (n=30) or a control group (n=28). A non-equivalent control group pretest-posttest design was employed to test the effects on fetal monitoring related knowledge and confidence on nursing performance in delivery room. The supplementary material about the electronic fetal monitoring was developed based on Analysis, Design, Development, Implement and Evaluation (ADDIE) model. Fetal monitoring related knowledge and confidence on nursing performance in delivery room were self-reported by the scales that author developed. Data were collected at pre-test and after the 6-week intervention. Results: There was significant difference in confidence on nursing performance in delivery room between two groups after intervention. Conclusion: These findings suggest the importance of the supplementary material about the electronic fetal monitoring for nursing students to improve confidence on nursing performance in delivery room.

• 한국응급구조학회지
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• 제21권1호
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• pp.75-85
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• 2017

Purpose: This study evaluated the effects of knowledge and attitude on confidence about patient safety management among emergency medical technician (EMT) students. Methods: A self-reported questionnaire was completed by 174 EMT students in two cities from May to June 2016. Data were analyzed using PASW WIN 20.0 for descriptive statistics, t-test, one way analysis of variance, and hierarchical multiple regression. Results: The students' confidence about patient safety management was 3.33 (on a 5-point scale). Confidence varied according to average academic grade (p=.015), experience in patient safety education, and experience in writing medical error reports. After adjusting for sex, average academic grade, and experience in patient safety education, knowledge and attitudes about patient safety increased a student's confidence in patient safety management by 19%. Conclusion: Patient safety education should be included in programs on health promotion and be provided as basic information in intervention programs for EMTs.

• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 1996년도 춘계공동학술대회논문집; 공군사관학교, 청주; 26-27 Apr. 1996
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• pp.495-498
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• 1996

Regression model with nested error structure interval estimations about variability on different stages are proposed. This article derives an approximate confidence interval on the variance in the first stage and an exact confidence interval on the variance in the second stage in two stage regression model. The approximate confidence interval is based on Ting et al. (1990) method. Computer simulation is provided to show that the approximate confidence interval maintains the stated confidence coefficient.

• Communications for Statistical Applications and Methods
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• 제3권2호
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• pp.29-36
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• 1996

In regression model with nested error structure interval estimations about variability on different stages are proposed. This article derives an approximate confidence interval on the variance in the first stage and an exact confidence interval on the variance in the second stage in two stage regression model. The approximate confidence interval is vased on Ting et al. (1990) method. Computer simulation is procided to show that the approximate confidence interval maintains the stated confidence coeffient.

• 응용통계연구
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• 제6권2호
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• pp.435-442
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• 1993

일반화 감마분포 모형에서 지표모수(k)가 알려진 경우에는 백분위 수에 대한 정확한 추론이 가능하다. 이 방법은 정확한 결과를 제공하지만 복잡한식의 수치적 계산이 요구된다. 본 논문에서는 이러한 계산상의 어려움을 극복함과 동시에 거의 대등한 정확도를 유지하는 근사신뢰구간을 구하였다. 또한, 로그정규모형에 대해서도 그 결과를 적용시켜 보았다.

• 한국음향학회지
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• 제22권3호
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• pp.194-201
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• 2003

음성인식에서 신뢰도 측정이란 인식된 결과에 대한 신뢰 여부를 결정하는 것이다. 신뢰도는 프레임을 음소 및 단어 수준으로 통합하여 측정된다. 단어 인식의 경우, 신뢰도를 이용하여 인식 결과와 미등록 어휘를 검증한다. 따라서 이러한 후처리를 통해 이를 인식 결과로 승인하지 않음으로써 성능을 높일 수 있다. 본 논문에서는 기존의 신뢰도 측정 방법인 로그 유사도 비를 수정하여 신뢰도를 측정하였다. 제안된 방법은 프레임 수준에서 음소 수준으로 신뢰도를 통합할 때 로그 유사도 비가 음수인 것만을 누적하는 것이다. 단어 인식기의 인식 결과에 대한 검증 성능을 기존의 방법과 비교한 결과, CAR (Correct Acceptance Ratio)이 90%인 지점에서 FAR (False Acceptance Ratio)을 미등록 어휘에 대해서는 약 3.49%, 오인식에 대해서는 15.25% 감소시킬 수 있었다

• 품질경영학회지
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• 제16권2호
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• pp.10-17
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• 1988

The problem of making confidence statements is considered about the means of treatments with t largest sample values among k available treatments. These confidence bounds are used in selecting a fixed number of superior treatments. An illustrative example is also provided.