• Title/Summary/Keyword: 독립표본 t-검증

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A Study on Easing Library Anxiety of University Students (대학생의 도서관불안 완화에 관한 연구)

  • Park, Hyun-Young;Nam, Tae-Woo
    • Journal of the Korean Society for Library and Information Science
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    • v.41 no.1
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    • pp.411-429
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    • 2007
  • This study Performed five weeks' education on library use as a regular cultural subject at the target on university students and analyzed the difference in their library anxiety between Pre-education and Post-education as well as the difference in educational effectiveness based on the frequency of library use. The result intends to Present the result for basic materials which aye necessary for promoting the education on library use. The object of study selected the university freshmen. located in Gyeonggi-do, taking a lessen of cultural essential subjects. The education contents on library use were the understanding of library organization and function, the structure of library materials, the kind and use of academic information, the citation of materials, the description of bibliography, and the copyright in a library. The study methods applied in the study, were literature researches and two-times' questionnaire surveys in the first week of the education and the last week of that. Total 92 materials were applied for this study. This study performed faired t-test and independent t-test. As a result, four factors of six ones on library anxiety were selected in the verification of hypotheses after performing an education on university students' library use. In addition, the difference in education effectiveness based on university students' library use frequency was excluded in the course of hypothesis verification on six factors or library anxiety.

Effects of 16-week Combined Exercise on Dementia, Depression, and Cognitive Function in Elderly Women (16주간의 복합운동이 고령여성의 치매관련인자, 우울감 및 인지기능에 미치는 영향)

  • Park, Chan-Ho;Cheon, Ji-Un
    • Journal of the Korean Applied Science and Technology
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    • v.36 no.2
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    • pp.456-467
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    • 2019
  • The purpose of this study was to investigate the effects of combined exercise on dementia, depression, and cognitive function in elderly women. This study subject were 28 elderly female volunteers, aged 76-83 years and they divided into the exercise group(n=14) and control group(n=14). The combined exercise included the elastic band exercise and aquarobics performed 3 times per week for 90 minutes during 16 weeks. The exercise intensity was set at RPE 10-11 for 1 week to 4 weeks, RPE 11-14 for 5 weeks to 16 weeks, respectively. The test data were analyzed by two-way repeated measures ANOVA, paired t-test, and independent t-test. The alpha level of .05 was set for all tests of significance. The findings of this study were as follows; ${\beta}-amyloid$ and depression were significantly decreased and DHEAs and cognitive function were significantly increased than control group. In conclusion, regular and continuous combined exercise was effective for improving dementia and had a positive effect on depression and cognitive function in elderly women.

The Relationship Between Mothers' Safety Knowledge and Home Safety Practice (어머니의 안전 지식과 가정 안전 실천간의 관계)

  • Kim, Ji-Young;Youn, Jin-Ju;Kim, Yong-Lim
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.9
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    • pp.4240-4247
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    • 2013
  • This purpose of this study was to investigate the difference of safety practice and safety knowledge according to background variables of mothers and the relationship between practice and knowledge in safety of mothers. The subjects were 143 mothers in Iksan city. A questionnaire was made by the researcher on the basis of relevant materials. The data was analyzed by statistical methods such as frequency, Cronbach's ${\alpha}$, descriptive statistics, t-test, ANOVA, Scheffe and Pearson's correlation. The results are as follow: First, mothers' safety knowledge was higher than average. There were significant differences in emergence care, dangerous material, toy safety and young children' developmental character according to mothers' age. There were significant differences in dangerous situation, young children' developmental character and sum score of safety knowledge according to mothers' educational level. So there were significant differences in electrical fire safety, young children's developmental character according to children's age. Second, mothers typically practiced home safety. There were significant differences bathroom, entrance according to mothers' age. And there were significant differences room, kitchen and sum score of safety practice according to children's age. Third, there is no correlation between mothers' safety knowledge and home safety practice.

A Study of the Quantitative, Qualitative Analysis on Optimizing Diagnostic Imaging Device Selection in Nasopharynx MRI (비 인두 자기공명 검사 시 최적의 진단영상 장치 선택에 관한 정량, 정성적 평가에 관한 연구)

  • Goo, Eun-Hoe
    • Journal of the Korean Society of Radiology
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    • v.13 no.7
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    • pp.1035-1043
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    • 2019
  • The object of is this research is to find out the optimal Tesla by evaluating SNR and CNR, after testing 1.5 T and 3.0 T. The randomly selected patients tested by nasopharynx MRI transmitted in PACS were applied to the research. Two MRI units(1.5 T, 3.0 T) was used for analyzing the data. As a method of analysis, in T1W highlighting and T1 fat removal images, we set up a certain area of interest and evaluated the SNR and CNR on tongue, spinal cord, masseter muscle, fat, parotid gland, and tumor tissue. We evaluated the SNR and CNR by quantitative analysis of six tissue, measuring the quality of images for uniform fat removal, magnetic sensitivity artifact on a four-point scale by qualitative analysis. The statistical significance of this date analysis was based on independent sample verification and was accepted when the P value was less than 0.05. As a result of analysis of both devices, 3.0 T was high in the quantitative evaluation, while 1.5 T was high in the qualitative evaluation. Considering the advantages and disadvantages of each device, and if the device is selected complementarily and applied to patients, it is believed that it will provide the optimal information.

An Exploratory Study on the Relationship between External Causes of Injuries and Regional Safety Grade among Geriatric Injury Patients (노인 손상환자의 손상외인과 지역안전등급 간 관계에 관한 탐색적 연구)

  • Lee, Jeong-Wook
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.9
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    • pp.472-482
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    • 2016
  • The purpose of this study was to determine if a geriatric injury would have a statistically significant relationship with the spatial safety within a specific region. To achieve the objectives of this study, an independent sample t-test and One-way ANOVA were performed to verify difference in mean value of regional safety grade, depending on the injury intentionality, injury location, activities at the time of injury, and injury mechanism, in 6,572 geriatric injury patients by combining the National Hospital Discharge Patients Injury Survey data and regional safety index data. The results of statistical validation suggested that there was no difference in the mean value of regional safety grade by sub-group with respect to the injury intentionality. However, a statistically significant difference was observed in terms of the mean value of regional safety grade in each sub-group with regard to the injury location, activities at the time of injury, and injury mechanism in connection with some areas of the regional safety index. Based on the results of such analysis, we derived and presented 3 implications related to policies and practice for the prevention of geriatric injury and a reduction of its occurrence rate in light of spatial safety after a discussion of the results through a comparison with previous studies that examined individual areas.

Effect of Music Therapy on Vital Signs, Anxiety, Cortisol and Pain of Cataract Surgery Patients in Elderly (음악요법이 노인백내장 수술환자의 활력징후, 불안, 코티졸 및 통증에 미치는 효과)

  • Park, Jung-Hae;Park, Kwang-Hi
    • Journal of Digital Convergence
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    • v.13 no.8
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    • pp.549-558
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    • 2015
  • Purpose of this study was to investigate the effect of music therapy on vital signs, anxiety, cortisol, and pain of Cataract Surgery Patients in elderly. Non equivalent control group pre-post test design was adopted. The number of subjects consists of 41 elderly having cataract surgery, 21 in the experimental group and 20 in the control group. Data were analyzed by $x^2$ test, Fisher's exact test, independent sample t-test, and Mann-Whitney U test. Results were: 1) there was no difference between two groups in their vital signs changes 2) anxiety, cortisol in the saliva, and pain of the experimental group decreased more significantly than those of the control group. This study confirmed the ability of music therapy to relieve pain and anxiety in cataract surgery, and suggested that music therapy could be used effectively in various interventions for the elderly.

Cognition on Quality of Childcare-center between Mothers and Directors (보육시설의 질에 대한 어머니와 보육시설장의 인식 비교)

  • Kim, Hye Gum
    • Korean Journal of Childcare and Education
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    • v.6 no.2
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    • pp.135-154
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    • 2010
  • This study was to explore the cognition of mothers and directors about the quality of childcare centers and analyze the differences of cognition of two groups. The subjects were 166 mothers and 178 directors in Gwanak-gu, Seocho-gu, Dongjak-gu in Seoul and Suweon-city, Anyang-city in Gyeonggi-do. The instrument of this study was the questionnaire on the quality of childcare center developed by researcher. The collected data were analyzed using t-test in SPSS 12.0 program. The major findings of this study were as follows: First, mothers evaluated that process area was the most important area, followed by service and structure area. Second, directors evaluated that process area was the most important area, followed by structure and service area. Third, directors evaluated overall quality of childcare center higher than mothers.

The Effect of Storycrafting Program on Mathematical Creativity and Communication (스토리크래프팅 프로그램이 수학적 창의성 및 의사소통능력에 미치는 영향)

  • Lee, Hyewon;Chang, Hyewon
    • Journal of Elementary Mathematics Education in Korea
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    • v.20 no.4
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    • pp.677-694
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    • 2016
  • Storycrafting is a creative educational technique in Finland. Since 2011, storytelling approach of mathematics textbooks in South Korea can be regarded as opportunities for interesting learning of mathematics as well as its improper application to mathematics lessons. We need to revise and improve the storytelling method. The purpose of this study is to make a storycrafting program that encourages students to make mathematical stories for themselves and to analyze the effect of the storycrafting program on mathematical creativity and communication. To do so, we developed a storycrafting program of mathematics for sixth graders, which is composed of 33 lessons. And we applied them to one sixth class as experimental group. Through pre-test and post-test, their mathematical creativity and communication were tested. Based on the result of t-test, we can verify the statistical meaningful effect of the storycrafting program. This study contains some conclusions and suggestions.

The Effects of Emotional Intelligence, Nursing Work Environment on Nursing Work Performance in Clinical Nurses (임상간호사의 감성지능과 간호근무환경이 간호업무성과에 미치는 영향)

  • Park, So-Hee;Park, Min-Jeong
    • Journal of Digital Convergence
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    • v.16 no.4
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    • pp.175-184
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    • 2018
  • This study aimed to identify the effect of emotional intelligence, nursing work environment on nursing performance in clinical nurses. Data were collected through a self-report questionnaire for 222 subjects and analyzed using descriptive statistics, t-test, ANOVA, and multiple regression with SPSS WIN 22.0 program. The results showed that nursing performance had significant correlations with emotional intelligence and nursing work environment. Also, the influencing factors on nursing performance were emotional intelligence, age, nursing satisfaction, nursing work environment, and nursing unit. These factors explained 50.0% of variance. Therefore, emotional intelligence, age, nursing satisfaction, nursing work environment, and nursing unit should be considered in developing and applying an nursing interventions program to improve the nursing performance among clinical nurses.

Gender Difference Between Sexual Harassment Awareness and Sexual Attitude in College Students (대학생 성희롱 인식과 성태도의 남녀 차이)

  • Cho, Sunhee;Han, Eun-Ju
    • Journal of the Korea Convergence Society
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    • v.11 no.11
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    • pp.385-391
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    • 2020
  • This study aimed to identify gender differences in sexual harassment awareness, sexual attitude, and correlation between them among college students. Data were collected in a 4-year university in Jeollanam-do and a total of 127 female and 93 male college students participated in this study in April, 2018. Descriptive statistics, independent t-test, and Pearson's correlation coefficient were used for data analysis. Male students' level of sexual harassment awareness were lower than femal's (p<.001). Male's sexual attitude was more conservative, but difference of sexual attitude between male and female was not statistically significant (p=.073). This study presented that the more conservative sexual attitude was related to the higher level of sexual harassment awareness in male group. On the contrary, the more conservative sexual attitude was related to the lower level of sexual harassment awareness in female group. It is necessary to develop a gender-specific sexual harassment prevention education program.