• Title/Summary/Keyword: T-test analysis

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In COVID-19, the Effect of Expected benefit of Time, Expected benefit of Learning, and Technology Familiarity in Online Class on Class Satisfaction (코로나 19로 인한 온라인 수업에서 시간적 기대 효익, 학습효과 기대 효익, 기술적 친숙도가 수업만족도에 미치는 영향)

  • Yu, Sang-Hui
    • Journal of the Korea Convergence Society
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    • v.12 no.11
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    • pp.257-263
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    • 2021
  • This study analyzed the factors affecting online class satisfaction and tried to use it as basic data for more effective class management. The survey was collected on 208 students majoring in dental laboratory technology in Jeonbuk and Chungbuk. The data were analyzed by reliability analysis, descriptive stastistics, compare means(t-test, one-way ANOVA), Pearson's correlation coefficient and stepwies multiple regression analysis(SPSS program). The analysis results showed that expected benefit of time was 3.87, expected benefit of learning was 3.30, technology familiarity was 3.40, and class satisfaction was 3.21. The most influential factor in class satisfaction was technology familiarity. In order to increase the online class satisfaction, it is necessary to build a learning environment to improve the ability to learning tools used in classes and technology familiarity with the online class system.

Factors Associated with Impaired Fasting Glucose in Middle-aged Men (중년 남성의 공복혈당장애 관련 요인)

  • Lee, Yeongsuk
    • The Journal of the Convergence on Culture Technology
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    • v.8 no.4
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    • pp.107-114
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    • 2022
  • The purpose of this study is to identify the prevalence of impaired fasting glucose among non-diabetic middle-aged men in Korea and to identify factors related to impaired fasting glucose. The research method is a descriptive research study using data of 545 men aged 40-64 who participated in the 8th Korean Health and Nutrition Examination Survey(KHANES) in the second year(2020). For data analysis, frequency and percentage, mean and standard deviation, Rao-Scott 𝛘2, t-test, and logistic regression analysis were performed using the complex sample analysis method of SPSS/WIN 23.0 program. The results of this study showed that the prevalence of impaired fasting glucose was 44.77%, and the frequency of drinking(OR=1.531, 95% CI: 1.01-2.33) and triglycerides(OR=1.002, 95% CI: 1.00-1.01) were significantly related factors for impaired fasting glucose. Therefore, it is necessary to develop a program for the prevention and management of impaired fasting glucose in middle-aged men, and this program should include drinking habits and triglycerides management strategies.

Association between hyperuricemia and metabolic syndrome (고요산혈증과 대사증후군과의 연관성)

  • Park, Yun-jin
    • Journal of the Korean Applied Science and Technology
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    • v.39 no.5
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    • pp.674-682
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    • 2022
  • This study aims to examine the relationship between hyperuricemia and metabolic syndrome, which is a risk to health, and to analyze the effect of hyperuricemia on the body. The analysis data were downloaded and used for the 8th 2nd (2020) data of the National Health and Nutrition Survey, and in this study, 2,320 men and 2,893 women were finally analyzed. For the analysis of the data, Chi-square test and t-test were used for the difference values according to collected general characteristics and hyperuricemia, and the risk of eGFR rise was analyzed by regression analysis, and Pearson correlation was used to confirm the correlation with each variable. Through this study, it was found that hyperuricemia is significantly related to metabolic syndrome, and through this, preemptive management is needed to prevent metabolic syndrome from worsening into vascular diseases including kidney diseases. Therefore, it is proposed to develop a health program suitable for the patient's age through this study.

The Effects of Growth Mindset and Self-leadership on Career Preparation Behavior in Senior Nursing Students (졸업학년 간호대학생의 성장마인드셋과 셀프리더십이 진로준비행동에 미치는 영향)

  • Kim, Eun-A
    • Journal of the Korean Applied Science and Technology
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    • v.39 no.4
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    • pp.499-506
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    • 2022
  • This study is a descriptive research study that attempted to investigate the effects of growth mindset and self-leadership on career preparation behavior of senior nursing students. The data collection period is from November 1 to 30, 2021, and the subject of the study is 173 nursing students from three universities located in G city and J province. For data analysis, t-test, ANOVA, descriptive analysis, Pearson's correlation, and controlled regression analysis were performed using the SPSS 26.0 program. As a result of the study, self-leadership(𝛽=.435, p<.001) and growth mindset(𝛽=.193, p=.005) had a positive effect on career preparation behavior and explained career preparation behavior by 32.0%. Therefore, it suggests that a practical strategy for cultivating self-leadership and growth mindset is necessary to promote career preparation behavior of senior nursing students.

Effect of Cross-legged Sitting Posture on Joint Range of Motion: Correlation with Musculoskeletal Symptoms and Facial Asymmetry

  • Shin, Yeong hui
    • The Journal of Korean Physical Therapy
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    • v.34 no.5
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    • pp.255-266
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    • 2022
  • Purpose: This study sought to study the effects of cross-legged sitting posture on joint motion. It also examined the correlation between the changes in the joint range of motion, musculoskeletal symptoms, and facial asymmetry. Methods: The Acumar Digital Inclinometer (Lafayette Instrument Company, USA) was used to measure the range of motion (ROM). We measured the flexion and extension of the cervical, thoracic, and lumbar spine using a dual inclinometer, and measured the ROM of the shoulder and hip joint with a single inclinometer. The Likert scale questionnaire was used to investigate musculoskeletal symptoms and facial asymmetry. Results: The data analysis was performed using the Jamovi version 1.6.23 statistical software. After confirming the normality of the ROM with descriptive statistics, it was compared with the normal ROM through a one-sample t-test. Correlation matrix analysis was performed to confirm the association between facial asymmetry and musculoskeletal symptoms. The result of the one-sample t-test showed a significant increase in the thoracic spine extension and right and left hip external rotation (p<0.001***), while most other joints were restricted. As per the frequency analysis, facial asymmetry was found to be 81.70%. Conclusion: The independent variable, namely cross-legged sitting posture led to an increase in ROM. The study also suggests that facial asymmetry and musculoskeletal symptoms could occur. Therefore, to prevent the increase and limitation of ROM and to prevent the occurrence of facial asymmetry and musculoskeletal symptoms, it is suggested that the usual cross-legged sitting posture should be avoided.

The Effects of Major Satisfaction and Clinical Practice Satisfaction on Job-Seeking Stress in Nursing College Students (간호대학생의 전공만족과 임상실습만족이 취업스트레스에 미치는 영향)

  • Cho, Young-Mi
    • Journal of Digital Convergence
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    • v.19 no.11
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    • pp.607-614
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    • 2021
  • This study was attempted to find out the effect of major satisfaction and clinical practice satisfaction of nursing college students on job-seeking stress. For this study, from May to June 2021, 152 4th grade students were participated from M University in Jeolla-do Province, using a self-reported questionnaire. Descriptive statistics, t-test, ANOVA, Pearson's correlation analysis, and multiple regression analysis were used for data analysis. As a result of this study, it was revealed that there was a significant negative correlation between the job-seeking stress of nursing students on major satisfaction(r=-.356, p<.001), but clinical practice satisfaction was not((r=-.018, p=.825). Also, the factors affecting the job-seeking stress of nursing students were age(β=0.285, p<.001), G.P.A.(β=0.250, p=.001) and major satisfaction(β=-0.331, p<.001) with a total explanatory power of 25.3%. As the results of this study, to decrease the job-seeking stress of nursing students, it is necessary to develop and apply programs to increase major satisfaction, and also the programs should be considered the nursing students' ages and G.P.As.

The Influencing Factors on Aging Anxiety of Middle-aged Men in Rural Areas During the COVID-19 Pandemic (코로나19 팬데믹 상황에서 농촌 거주 중년 남성의 노화 불안 영향요인)

  • Gang, Moonhee;Gwak, DongHyeon
    • Journal of Industrial Convergence
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    • v.20 no.10
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    • pp.103-111
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    • 2022
  • The purpose of this study was to identify the influencing factors on aging anxiety by middle-aged men in rural areas during the COVID-19 pandemics. The design of this study was descriptive survey study. The participants were 180 middle-aged men aged 45 to 64 living in G province. Collected data were analyzed by descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient and multiple regression analysis with SPSS statistics 26.0 program. As a result of regression analysis, As a result of regression analysis, influencing factors on aging anxiety were stress(β=.10, p=.004), economic difficulties (β=.16, p=.007), COVID-19 psychological distress(β=.18, p=.003), family care burdens(β=.50, p<.001), and the explanatory power of the variables was 60.5%(F=55.93, p<.001). In the future, interventions are needed to manage aging anxiety and stress in middle-aged men, and support policies are needed to reduce psychological distress and overcome economic difficulties caused by COVID-19.

Effect of water distribution on shear strength of compacted loess

  • Kang-ze, Yuan;Wan-kui, Ni;Xiang-fei, Lu;Hai-man, Wang
    • Geomechanics and Engineering
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    • v.31 no.5
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    • pp.519-527
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    • 2022
  • Shear failure in soil is the primary cause of most geotechnical structure failures or instability. Soil water content is a significant factor affecting soil shear strength. In this study, the shear strength of samples with different water contents was tested. The shear strength, cohesion, and internal friction angle decreased with increasing water content. Based on the variation of cohesion and internal friction angle, the water content zone was divided into a high-water content zone and low-water content zone with a threshold water content of 15.05%. Cohesion and internal friction angle have a good linear relationship with water content in both zones. Environmental Scanning Electron Microscopy (ESEM) test presented that the aggregates size of the compacted loess gradually increases with increasing water content. Meanwhile, the clay in the compacted loess forms a matric that envelops around the surface of the aggregates and fills the inter-aggregates pores. A quantitative analysis of bound water and free water under different water contents using a nuclear magnetic resonance (NMR) test was carried out. The threshold water content between bound water and free water was slightly below the plastic limit, which is consistent with the results of shear strength parameters. Combined with the T2 distributions obtained by NMR, one can define a T2 relaxation time of 1.58 ms as the boundary point for bound water distribution without free water. Finally, the effects of bound water and free water on shear strength parameters were analyzed using linear regression analysis.

Analysis of Instructional Design and Effect for Pre-service Mathematics Teachers' TPACK-P Improvement (예비수학교사의 TPACK-P 신장을 위한 강의 설계 및 효과 분석)

  • Jeon, Youngju;Rim, Haemee
    • Journal of the Korean School Mathematics Society
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    • v.26 no.1
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    • pp.49-70
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    • 2023
  • This study aimed to design a robot programming lecture for pre-service mathematics teachers to improve their TPACK-P (TPACK-Programming) and analyze its effectiveness. The lecture design involved stages of analysis, exploration, primary micro-teaching, and secondary micro-teaching, with each stage including design, application, and evaluation. The TPACK-P survey was conducted before and after the lecture, and the results indicated a statistically significant difference in TCK at the 1% significance level and TPK, TRACK, and TRACK(P) at the 5% significance level. Further analysis using dependent sample t-tests showed that the post-test mean was significantly higher than the pre-test mean in categories such as TCK, TPK, TPACK, and TPACK(P). These findings suggest that the designed lecture positively affected the growth of pre-service mathematics teachers' TPACK-P.

Development and Validation of Physical Education Teaching Anxiety Scale for Preservice Special Teacher (예비특수교사의 체육교수불안 척도 개발 및 타당화)

  • Lee, Yong-Kuk
    • 한국체육학회지인문사회과학편
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    • v.57 no.3
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    • pp.375-389
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    • 2018
  • This study aims to development and validation a tool to measure physical education teaching anxiety(PETA) among preservice special teacher. In order to achieve this study purpose, first, the preliminary items for measurement scale were collected through open-ended questions and were developed by inductive content analysis from the 100 preservice special teacher. Second, investigation for construct validity was conducted on exploratory factor analysis from the 100 preservice special teacher. Third, in the final process, verify exernal validity was conducted by confirmatory factor analysis and t-test from the 300 presevice special teacher. As a result, the measurement scale of physical education teaching anxiety(PETA) among preservice special teacher consists of 4 main factors with 14 items: pedagogical content knowledge(n=4), understanding students(n=4), class environment(n=3), class management(n=3) factors and this scale has enough suitability.