• Title/Summary/Keyword: T-test analysis

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The Mediating Effect of Biomedical Ethics Awareness in the Relationship between the Moral Distress and Moral Sensitivity of Hospital Nurses (병원 간호사의 도덕적 민감성과 도덕적 고뇌와의 관계에서 생명의료윤리의식의 매개효과)

  • Kim, Ok-Hyun;Ahn, Seong-Ah;Oh, Su-Mi;Kong, Jeong-Hyeon;Choi, Hye-Ok
    • Journal of Convergence for Information Technology
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    • v.9 no.9
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    • pp.78-86
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    • 2019
  • In the study, the moral sensitivity, moral distress, and biomedical ethics awareness levels of hospital nurses are examined, and the mediating effect of biomedical ethics awareness in the relationship between moral sensitivity and moral distress is verified. As the study subjects, 153 hospital nurses were selected from both university hospitals and general hospitals in S city and J city. Using the SPSS WIN 21.0 system, data analysis was conducted via t-tests, the Sheffe test, correlation analysis, multiple regression analyses, Sobel test. The average level of moral sensitivity experienced by the hospital nurses was 4.70(out of 7), moral distress was 62.80(out of 336), and biomedical ethics awareness was 2.21(out of 4). Moral distress had a static correlation with moral sensitivity and biochemical ethics awareness, and moral sensitivity had a static correlation with biomedical ethics awareness. Finally, biomedical ethics awareness showed a partial mediating effect in the relationship between moral sensitivity and moral distress. It is important to develop a biomedical ethics education program that can help hospital nurses to resolve moral issues, thereby improving moral sensitivity and diminishing their moral distress.

Effectiveness of PBL Based on Flipped Learning for Middle School English Classes (플립드러닝 기반 PBL 모형 중학교 영어 수업의 효과)

  • Won, Youngmi;Park, Yangjoo
    • Journal of the Korea Convergence Society
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    • v.12 no.11
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    • pp.185-191
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    • 2021
  • The purpose of this study is to develop middle school English classes using Problem-Based Learning(PBL) based on flipped learning and to examine its effects. Recently, various attempts to combine flipped learning and PBL have been made; however, many studies have not been applied to middle and high school curriculums yet. The attempt of this study is expected to have theoretical and practical significance. The instructional model was derived from the review of previous studies, and the development of instructional program followed the general design procedure(analysis-design-development-implement-evaluation), and its validity was secured with the advice of related experts. To verify the effectiveness of the program, the English academic achievement test and the English key competency test were conducted before and after the program. Changes in English academic achievement were analyzed by the paired-sample t-test, and the effect of key competency and the level of achievement test performance (high vs, low) on the pre-post score change was analyzed by the mixed effects repeated measures ANOVA. As a result of the analysis, both academic achievement and key competencies increased, and the low-level students in the pre-academic achievement test showed more improvements. In conclusion, the PBL class based on flipped learning is effective in improving the English academic achievement and key competencies of middle school students, and in particular, it is shown to be an effective teaching method for students with low academic achievement.

Statistical Analyses of Soil Moisture Data from Polarimetric Scanning Radiometer and In-situ (Polarimetric Scanning Radiometer 와 In-situ를 이용한 토양수분 자료의 통계분석)

  • Jang, Sun Woo;Jeon, Myeon Ho;Choi, Minha;Kim, Tae-Woong
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.30 no.5B
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    • pp.487-495
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    • 2010
  • Soil moisture is a crucial factor in hydrological system which influences runoff, energy balance, evaporation, and atmosphere. United States National Aeronautic and Space Administration (NASA) and Department of Agriculture (USDA) have established Soil Moisture Experiment (SMEX) since 2002 for the global observations. SMEX provides useful data for the hydrological science including soil moisture and hydrometeorological variables. The purpose of this study is to investigate the relationship between remotely sensed soil moisture data from aircraft and satellite and ground based experiment. C-band of Polarimetric Scanning Radiometer (PSR) that observed the brightness temperature provides soil moisture data using a retrieval algorithm. It was compared with the In-situ data for 2-30 cm depth at four sites. The most significant depth is 2-10 cm from the correlation analysis. Most of the sites, two data are similar to the mean of data at 10 cm and the median at 7 cm and 10 cm at the 10% significant level using the Rank Sum test and t-test. In general, soil moisture data using the C-band of the PSR was established to fit the Normal, Log-normal and Gumbel distribution. Soil moisture data using the aircraft and satellites will be used in hydrological science as fundamental data. Especially, the C-band of PSR will be used to prove soil moisture at 7-10 cm depths.

An Improvement Direction for Increases of Visitor Satisfaction on Arboretum by Post-evaluation - Based on Jade Garden - (수목원 방문객 만족도 증진을 위한 개선방향 - 제이드가든 내 4개 주제정원을 대상으로 -)

  • Park, Geon;Yun, Young-Jo;Kil, Sung-Ho;Rho, Hoe-Eun
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.37 no.4
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    • pp.60-72
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    • 2019
  • The purpose of this study was to identify detailed factors that affect visitor satisfactions of the plants on display, environments of pedestrian road and facility of each theme garden by conducting a survey of visitors to Jade Garden. The 400 data including 100 copies per theme garden were used for statistical analysis. The statistical techniques used in the survey analysis include multi-regression analysis, t-test, and analysis of variance(ANOVA). As a result of the analysis, most of theme gardens tended to have the greatest impact on the satisfaction of the plants on display and the lowest level of facility satisfaction. According to detailed factors analysis of the satisfaction of plants on display satisfaction of plant diversity and the method of plant display were most affected in most of the theme gardens. Among them, promoting the satisfaction of plant diversity is necessary to plant various species, but in case of Ginkgo Maze Garden, a type of tree community as one tree(Ginkgo biloba), the satisfaction of plants diversity did not show a rising-up value. Therefore, it was confirmed that the appropriate degree of plants diversity depends on the theme or environment of the garden. In the case of the pedestrian-road-satisfaction, the width of the pedestrian road was the most affected, It was analyzed that whether the point of intersection can be easily available during peak season has a significant impact on the satisfaction of visitors. In the case of facility satisfaction, it was analyzed that the presence of rest and convenience facilities had the most direct influence on visitors, so the facility diversity had the greatest influence. Therefore, it is necessary to more systematically categorize and consider the influential detailed factors such as plants diversity and methods of plant display, width of pedestrian road and facilities diversity for the management and development of the arboretum.

Factors affecting the resilience of dental hygienists' interpersonal relationships, job satisfaction, and organizational commitment (치과위생사의 인간관계능력, 직무만족 및 조직몰입이 회복탄력성에 영향을 미치는 요인)

  • Park, Shin-Hong;Kang, Hyun-Kyung
    • Journal of Korean society of Dental Hygiene
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    • v.19 no.6
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    • pp.983-992
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    • 2019
  • Objectives: This study is a descriptive analysis to identify factors that affect dental hygienists' flexibility by investigating the correlation between dental hygienists' interpersonal relationships, job satisfaction, organizational commitment, and resilience. Methods: Data were collected from October 8 to 22, 2018 using a structured questionnaire that was administered to 132 dental hygienists working in dental clinics and dental hospitals in Busan, Ulsan, and Gyeongsangnam-do. The collected data were analyzed using descriptive statistics, an independent sample t-test, one-way ANOVA, correlation analysis, and multiple regression analysis using SPSS 24.0 program. Results: First, the interpersonal relationships, job satisfaction, organizational commitment, and resilience of dental hygienists were all found above average. Second, the resilience of dental hygienists showed a significant positive correlation with interpersonal relationships (r=0.719, p<0.001), job satisfaction (r=0.328, p<0.001), and organizational commitment (r=0.519, p<0.001). Third, interpersonal relationships (t=9.87, p<0.001) and organizational commitment (t=3.30, p<0.01) were significant factors affecting the resilience of dental hygienists. Conclusions: In order to improve the resilience of dental hygienists, it is necessary to explore various ways to enhance their interpersonal relationships and organizational commitment. Furthermore, this study intends to provide basic data that are necessary for establishing a human resources management strategy for dental institutions to create a desirable organizational culture.

A Study on Aircraft Sensitivity Analysis for Supersonic Air-Data Error at Low Altitude (공기정보 오차에 의한 저고도 초음속 영역에서의 민감도 해석에 관한 연구)

  • Kim, Chong-Sup;Hwang, Byung-Moon;Kim, Seong-Youl;Kim, Seong-Jun
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.33 no.11
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    • pp.80-87
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    • 2005
  • T-50 supersonic jet trainer aircraft using digital flight-by-wire flight control system receives aircraft flight conditions such as altitude, VCAS(Calibrated Airspeed) and Angle of Attack from IMFP(Integrated Multi-Function Probe). IMFP sensors information have triplex structure using three IMFP sensors. Air-data selection logic is mid-value selection in three information from three IMFP sensors in order to have more reliability. From supersonic flight test at high altitude, air-data information is dropped simultaneously because of supersonic shock wave effect. This error information may affect to aircraft stability and safety in supersonic area at low altitude. This paper propose that sensitivity analysis and HQS(Handling Quality Simulator) pilot simulation in order to analyze flight stability and controllability in supersonic area at low altitude when these information is applied to flight control law.

Nursing Image and Professionalism Perceived by Male and Female Nursing Students in College (3년제 간호학 전공 남학생과 여학생이 지각한 간호이미지와 간호전문직관)

  • Joo, Mee Kyoung;Shin, Gye Young
    • The Journal of Korean Academic Society of Nursing Education
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    • v.18 no.3
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    • pp.510-521
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    • 2012
  • Purpose: The purpose of this study was to identify the degree and correlations between the nursing image and professionalism perceived by male and female nursing students in College. Method: The subjects were composed of 683 nursing students (male 59, female 624) in college located in Gyeonggi province using convenience sampling method. Descriptive statistics, Pearson correlation coefficient and t-test were used for data analysis. Results: The mean score of nursing image perceived by male nursing students was 3.80 (${\pm}0.51$) and that of female nursing students was 3.75 (${\pm}0.45$). The mean score of professionalism perceived by male nursing students was 3.61 (${\pm}0.55$) and that of female nursing students was 3.64 (${\pm}0.42$). There was no significant difference between nursing image of male and female students in statistical analysis (t=1.38, p=.248). And there was no significant difference between professionalism of male and female students in statistical analysis (t=1.73, p=.167). The nursing image perceived by male nursing students was positively related to professionalism (r=.74, p<.001). The nursing image perceived by female nursing students was positively related to professionalism (r=.69, p<.001). Conclusion: Based on the results of the study, further research is needed to change of perspectives on new educational approach to male nursing students.

Effect of Posterior-Anterior Mobilization of the Thoracic Spine on Pain, Respiratory Function, and Thoracic Circumference in Patients With Chronic Low Back Pain

  • Park, Ju-jung;Chon, Seung-chul
    • Physical Therapy Korea
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    • v.25 no.4
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    • pp.37-45
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    • 2018
  • Background: Posterior-anterior (PA) vertebral mobilization, a manual therapy technique has been used for relieving pain or stiffness treating in spinal segment for in clinical practice, however evidence to gauge efficacy is yet to be synthesised. Objects: This study aimed to investigate the effect of PA mobilization of the thoracic spine on the respiratory function in patients with low back pain (LBP). Methods: The study participants included 30 patients with chronic LBP. They were randomly allocated to the experimental and control groups. The experimental and control groups received PA mobilization of the T1-T8 level of the thoracic spine and placebo mobilization, respectively. All patients received interventions for 35 minutes a day, five times a week, over 2-week period, respectively. Forced vital capacity (FVC), forced expiratory volume in 1 second ($FEV_1$), peak expiratory flow (PEF), forced expiratory flow 25~75% ($FEF_{25{\sim}75%}$), and chest wall expansion were measured before and after the intervention. Statistical analysis was performed using independent t-test and two-way analysis of variance, and Pearson's correlation analysis was used to compare the correlation between respiratory function and chest measurement. Results: The experimental group showed significant improvements in FVC, $FEV_1$, PEF, $FEF_{25{\sim}75%}$ (p<.05), and chest wall expansion (p<.05) compared with the control group. Conclusion: PA mobilization of the upper thoracic spine may be beneficial for improving respiratory function parameters including FVC, $FEV_1$, PEF, $FEF_{25{\sim}75%}$, and chest wall expansion in patients with chronic LBP.

The Effects of Apparel Store Services on Impulsive Buying Behaviors (의류점포서비스가 의복충동구매행동에 미치는 영향)

  • 최영은;박은주
    • Journal of the Korean Society of Clothing and Textiles
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    • v.26 no.11
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    • pp.1615-1626
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    • 2002
  • The purpose of this study was to investigate the effect of shopping orientation, and service quality and satisfaction on impulsive buying behavior in two types of apparel store. The sample consisted of 616 females aged 20-30 who were shopping at department stores and shopping malls in Busan. Data were analyzed with factor analysis, t-test, cross analysis and path analysis. The results showed that consumers of department stores showed more strongly convenient orientation than those of the shopping mall, consumers of the shopping mall showed more strongly recreational orientation and practical orientation than those of the department. Stores services of the department were perceived better than that of the shopping mall in promotional services, salespersons' services and environmental services. But it didn't show any differences between store types in product services. Consumers 'satisfaction with the service was greater in department stores than the shopping mall. But it didn't show any difference between apparel store types in the impulsive buying behaviors. Impulsive buying behavior of department store shoppers is directly affected by a shopper' shopping orientation as well as store service quality perceived by shoppers rather than a shopper' satisfaction. The service quality does not have directly related to consumers’ service satisfaction. The causal relationships of impulsive buying behaviors showed similarity in shopping malls and department stores. The perceived quality and satisfaction with store service were higher at department store than shopping malls. In impulse buying behavior of a department store was directly affected by a shopper' shopping orientation as well as store service quality perceived by shoppers rather than a shopper’ store service satisfaction.

The influence of health literacy competencies on patient-centered care among clinical nurses (임상간호사의 건강정보이해능력 역량이 환자중심 간호에 미치는 영향)

  • Kim, Minyeon;Cha, Jieun
    • The Journal of Korean Academic Society of Nursing Education
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    • v.27 no.2
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    • pp.132-143
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    • 2021
  • Purpose: The aim of this study was to identify the relationships between health literacy competencies and patient-centered care among clinical nurses. Methods: The participants of this study were 254 nurses working in two hospitals in the D region. The data were collected from July to August 2020. The health literacy competencies for registered nurses scale and individualized care scale were utilized. Descriptive statistics, independent t-test, ANOVA, Pearson's correlation coefficient and multiple regression analysis were used for data analysis. Results: The mean of health literacy competencies was 3.16±0.31 points on a four-point scale, and the average of patient-centered care was 3.69±0.50 points on a five-point scale. Regarding the nurses' general characteristics, patient-centered care showed significant differences according to age (F=4.68, p=.010), marital status (t=-2.38, p=.018), religion (F=3.03, p=.030), total clinical experience (F=2.94, p=.021) and prior health literacy knowledge (t=3.20, p=.002). As a result of a hierarchical multiple regression analysis, health literacy competencies (β=.63) were found to significantly influence patient-centered care. The explanatory power of the model was 41.0% (F=25.58, p<.001). Conclusion: The study suggests that nurse's health literacy competencies should be developed in order to improve patient-centered care. Nursing education should include an emphasis on integrating health literacy into the nursing school curriculum.