• Title/Summary/Keyword: T-test analysis

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Comparision of Muscle Strength and Gait Ability between Hemodialysis Patients and Healthy adults (혈액투석 환자와 건강인의 근력과 보행능력의 비교)

  • Park, Keun-Sook;Choi, Soon-Hee;Park, Min-Jung
    • Journal of Korean Public Health Nursing
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    • v.26 no.1
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    • pp.82-90
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    • 2012
  • Purpose: This study was conducted in order to compare muscle strength and gait ability of hemodialysis patients with those of healthy adults. Methods: Data were collected through a questionnaire, by testing of muscle strength and gait ability of 40 hemodialysis patients and 40 healthy adults. $X^2$-test, t-test, and ANCOVA were used in performance of data analysis. Results: First, variables including of occupation ( $X^2$=22.40,p<.001), body weight (t=-3.72, p<.001), and BMI ( $X^2$=14.65, p<.001) differed significantly between patients in the hemodialysis group and subjects in the healthy adult group. Second, using ANCOVA analysis with correction for related variables, such as occupation, body weight, and BMI as covariates, numbers for lift/reach (F=8.15, p<.001) and sit-to-stand (F=5.47, p=.001), and both maximum safe speed (F=9.17, p<.001) and normal comfortable speed (F=8.89, p<.001) were significantly lower for patients in the hemodialysis, compared with subjects in the healthy adult group. Conclusion: According to the results, muscle strength and gait ability of patients in the hemodialysis group were lower than those of subjects inthe healthy adult group. These findings suggest the importance and necessity for an interventional exercise and rehabilitation program for hemodialysis patients.

Convergence Study on Stress, Stress of Clinical Practice, Coping, and Psychological well-being in Nursing Students. (간호대학생의 스트레스, 임상실습 스트레스, 대처, 심리적 안녕감에 관한 융합 연구)

  • Kim, Eun-A
    • Journal of the Korea Convergence Society
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    • v.9 no.3
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    • pp.91-99
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    • 2018
  • The purpose of this study was to investigate the stress, clinical practice, coping with the stress, and the degree of psychological well-being of nursing student. A descriptive research study was conducted to confirm successful university life of nursing college students and how to continue their nursing life. The data were collected from questionnaires filled out by 242 nursing students who experienced clinical practice. Data collection was performed from October to November, 2015. The collected data were analyzed by SPSS 21.0 program using ANOVA, t-test, pearson correlation coeffient and multiple regression analysis. As a result of the research, it was found that the psychological well-being increased as the problem faced, the problem was solved directly, and the less stress was applied. Results of the regression analysis showed problem solving coping(${\beta}=.446$), avoidance coping (${\beta}=-.301$), and stress(${\beta}=-.281$), it were explained 51.0%. Therefore, nursing college students should be able to cultivate psychological well-being through a strategy of managing stress to actively ask for solutions to problems through self or social support system.

Comparison of Visual Sensibility for Red Shirts between Korean and Chinese University Students (한국과 중국 대학생의 빨간색 셔츠에 대한 시각적 감성 비교)

  • Pan, Hong-Yu;Choi, Jong-Myoung
    • Science of Emotion and Sensibility
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    • v.15 no.1
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    • pp.57-64
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    • 2012
  • The purpose of this study was to compare the visual sensibility of red shirts in university students of two countries, Korea and China in order to suggest the color planning for shirts. Seven tonal red shirts' visual sensibility and preferences were evaluated by the students of Korea and from China in the sense of sight. Evaluated data were analyzed by using frequency analysis, average, factor analysis and t-test. The visual sensibility of red shirts was classified into three factors: sporty, romantic and classic. Those factors of visual sensibility showed a significant difference according to nationality and gender. The Chinese students had a more sporty feel to the strong tone, and a more classic feel to the dark tone than the Korean students. The deep tone red shirts was reputed to be more romantic by the Korean students, but the light tone and the pale tone were considered more romantic by the Chinese students. Meanwhile, the effects of nationality and gender on seven tone of preferences for red shirts was significantly differed.

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The Comparison of Subjective Evaluation of Band between On-line and Off-line by Structure and Sensibilities of Fabric (직물의 구조와 감각특성에 따른 온라인과 오프라인에서의 주관적 태평가 비교)

  • Kim, Hee-Sook;Cho, Shin-Hyun
    • Journal of the Korean Society of Clothing and Textiles
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    • v.31 no.1 s.160
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    • pp.1-10
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    • 2007
  • This research was designed to compare the subjective evaluation of Hand between on- and off-line by structure and sensible characteristics of fabric. 113 subjects who have a fashion design major evaluated the subjective evaluation of Hand of various 16 kinds of specimens on- and off-line. T-test and pearson correlation coefficient were used for statistical analysis by SPSS WIN 11.0. The results of this study were as follows: The results of correlation analysis of the evaluation score indicated that Crash and Satin show high correlation between two kinds of evaluation score. But, fabrics which have distinct characteristics such as Plush, Dobby, Seersucker represented low correlation coefficient. The results of t-test fer the difference of the evaluation score showed that thin fabrics like Organdy represent a large difference between on- and off-line evaluation. On the other hand, twill weaved fabrics like Drill, Tweed, Saxony did not show many differences. Analysing each item in terms of correlation of evaluation of hand between on- and off-line gave results that the shininess was most deliverable through on-line and density and the dryness was not so deliverable through on-line. Comparison of evaluation score between on- and off-line items showed that the estimation to real fabric is more negative than that of on-line. The results of most preferable hand between on-and off-line showed exact opposite preference between shinny, smooth and soft Satin and rough, woolen Tweed. Organdy showed the most different subjective evaluation of hand in real ones compared with that of on-line.

Malnutritional Status and It's Related Factors of Demented Elderly in Long-term Care Facilities (시설 치매노인의 영양불량 상태 영향요인)

  • Hyun, Eun-young;Oh, Jin-joo
    • The Journal of the Korea Contents Association
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    • v.17 no.9
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    • pp.426-436
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    • 2017
  • The purpose of this study was to analyze factors affecting malnutritional status of elders with dementia in facilities. The subjects were 140 elders with dementia residing in three nursing facilities in Chungnam, South Korea. Data were collected from May 30 to September 30 in 2016, using questionnaires. The collected data were tested by t-test, ANOVA, correlation, regression analysis. The malnutritional status of elders with dementia in facilities was high in the high-risk group (84, 60.0%), and the nutritional status was appeared to be related to sex, long-term care grade, Korean version-Activities of Daily Living and feeding difficulty and cognitive function. As a result of multiple regression analysis, significant influence variables on malnutritional status were Activities of Daily Living(${\beta}=0.379$, p=.001), feeding difficulty(${\beta}=0.264$, p=.001), cognitive function(${\beta}=-0.187$, p=.014) and these variables showed an explanatory power of 35.9% on malnutritional status. The results of this study are expected to be used as basic data for the development of malnutritional status improvement program for elders in facilities with dementia.

The Study on the Analysis of Efficiency of Governmental R&D Programs Regarding to the S&T Outcomes (과학기술적 성과 관점에서 정부 R&D사업 효율성 분석에 관한 연구)

  • Park, Seok-Jong;Kim, Kyung-Hwa;Jeong, Sang-Ki
    • Journal of Korea Technology Innovation Society
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    • v.14 no.2
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    • pp.205-222
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    • 2011
  • The Korean government continuously increases the R&D investment in order to pursue an economic growth through technological innovation. Hence, the intensity of governmental R&D has increased rapidly. However, the whole amount of the R&D investment is still small compared to developed countries. And the type of R&D policies is more and more changing from the catch-up model to the technology-driven model. Therefore, there is a growing interest in the efficiency of public R&D investment. Hence, many studies on the efficiency of R&D investment have been researched. This study estimated the efficiency of governmental R&D programs considering the technological outcomes, e.g. theses, patents and so on, using DEA(Data Envelopment Analysis) with data of S&T investment and outcomes from NTIS(National S&D Information Service). In addition, we used the Mann-Whitney Test to investigate the characteristics of governmental R&D investment.

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A Study on Drug awareness information, Usage and Misusage on Elderly Inpatients of Veterans Hospital (보훈병원입원노인환자의 약물정보인식, 약물사용 및 오용실태에 관한 연구)

  • Heo, Young Hi
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.9
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    • pp.4326-4334
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    • 2013
  • This study is descriptive research, attempts to determine the status of elderly inpatients of veterans hospital' of drug awareness information, drug use status and drug Misusage. The subjects were 220 patients of aged 65 and over only five metropolitan areas nationwide in drug use in the Veterans Hospital, national merit, the study is from May to June. SPSS Win 18.0 program was used as the data analysis and a statistical statement by mean, standard deviation, t-test and ANOVA, and multiple regression analysis. As a results, there was showed a statistically significant level 'age', 'type of marriage', 'education', 'triage', 'health status' as the general characteristics of the subjects. It showed the 'age' of the variables that influence recognition in the area of drug awareness information, and drug Misusage and drug use status factors seemed to affect the 'health status'. Therefore, It need for a comparative study of elderly inpatients and inpatients of veterans hospital, the research should be qualitative research of veterans medical services to the on reasonable support measures in the Veterans Affairs health care system and national merit.

Effect of dietary quality on periodontal diseases in Korean adults: the Korea National Health and Nutrition Examination Survey (2016-2018) (한국 성인의 식생활의 질이 치주질환에 미치는 영향: 국민건강영양조사 제7기(2016-2018) 자료 활용)

  • Park, Jung-Eun
    • Journal of Korean society of Dental Hygiene
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    • v.21 no.5
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    • pp.535-543
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    • 2021
  • Objectives: This study investigated the relationship between the Korean healthy eating index (KHEI) and periodontal disease in the Korean adult population. Methods: The data used in the analyses were obtained from the seventh Korean National Health and Nutrition Examination Survey (2016-2018). Data were analyzed by chi-square tests and t-test. Multiple regression analysis was also performed to assess the association between KHEI and periodontal disease. Statistical significance was set at p<0.05. Results: Multiple logistic regression analysis adjusted for socioeconomic variables showed that medical and health behavior variables were significantly related to the KHEI 1 (<63.7, odds ratio [OR]: 1.23, 95% confidence interval [CI]: 1.03-1.46), KHEI 2 (63.7-79.9, OR: 1.14, 95% CI: 0.97-1.34), and risk for periodontal disease. Conclusions: The results showed a significant association between the KHEI and periodontal disease in the Korean adult population.

Factors Influencing Hospital Nurses' COVID-19 Prevention Behaviors (대학병원 간호사의 COVID-19 예방행위에 미치는 영향요인)

  • Jeon, Sang-Won;Han, Suk-Jung
    • Journal of the Korea Convergence Society
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    • v.12 no.12
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    • pp.583-594
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    • 2021
  • This study is a descriptive research study conducted to understand the effects of hospital nurses' COVID-19 risk perception, media dependence, government trust, resilience, and Socio-psychological stress on COVID-19 prevention behavior. Data were collected from 200 nurses at university hospitals, and the collected data were analyzed using descriptive statistics, t-test, Pearson's correlation analysis, ANOVA, and multiple regression analysis using the SPSS 24.0 program. The average age of the subjects was 29.8 years old, the hospital experience was 6.6 years, and the prevention of COVID-19 was high with 4.3 points. COVID-19 prevention behavior showed positive correlation with COVID-19 risk perception, resilience, and media dependence and negative correlation with socio-psychological stress. Factors influencing COVID-19 prevention behavior were COVID-19 risk perception, resilience, socio-psychological stress, and media dependence. To ensure that hospital nurses' COVID-19 prevention behaviors can be continued, it is necessary to appropriately manage COVID-19 risk perception and media dependence, and to develop and apply an intervention program to strengthen resilience and reduce socio-psychological stress.

The Convergence Effect of Major Satisfaction, Resilience on Clinical Practice Satisfaction of Dental Hygiene Students (치위생(학)과 학생의 전공만족도, 회복탄력성이 임상실습만족도에 미치는 융합적 영향)

  • Lee, Ji-Won;Choi, Ha-Na;Jung, Ui-Jung;Kim, Mi
    • Journal of the Korea Convergence Society
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    • v.12 no.10
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    • pp.113-120
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    • 2021
  • This study was conducted to investigate the degree of major satisfaction, resilience and clinical practice satisfaction of dental hygiene students, and to find out factors affecting clinical practice satisfaction. A survey was conducted for students from the dental hygiene department with clinical practice experience, and a total of 256 questionnaires were finally analyzed. For data analysis, descriptive statistics, t-test, ANOVA, and multiple regression analysis were performed according to the purpose of the study. As a result of the study, it was found that relational of major satisfaction had a significant positive effect on the variables affecting clinical practice satisfaction. Based on these results, in order to improve clinical practice satisfaction, it is important to increase relationship satisfaction as a sub-factor of major satisfaction.