• Title/Summary/Keyword: 독립표본 T-검정

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Development and application of algorithm judging system : analysis of effects on programming learning (알고리즘 자동평가 시스템의 개발 및 적용 : 프로그래밍 학습 효과 분석)

  • Chang, Won-Young;Kim, Seong-Sik
    • The Journal of Korean Association of Computer Education
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    • v.17 no.4
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    • pp.45-57
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    • 2014
  • Many studies on algorithm judging system which verifies the correctness and the time efficiency of your program have been underway recently, most of which are on an online judging system focused on programming contests. However this study is mainly about development and application of the judging system based on client-server. Especially, we designed to promote metacognition and motivation which are emphasized in CRESST model, and implemented the total system that consists of the problem, data set, validation program, and user service environments. We applied our system to elementary, middle, and high school students, and We noticed a significant difference of average score between the experimental and control group in posttest and concluded that the teaching method using our system gave the bigger positive effects on programming learning.

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Convergence Study on Job Value and Lifestyles in Some University Students -Focused on dental hygiene students- (일부 대학생의 직업가치관과 생활양식에 관한 융합연구 -치위생과 학생들을 중심으로-)

  • Shin, Seon-Haeng
    • Journal of Convergence for Information Technology
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    • v.9 no.12
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    • pp.190-197
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    • 2019
  • The purpose of this study was conducted as a basic data for the formation of a correct job value and to investigate the relationship between lifestyles and their job value in the dental hygiene students. A self-reported questionnaire was completed by 237 dental hygiene students in Seoul city from September 1 to 30, 2018. The data were analyzed by t-test, one way ANOVA, Pearson's correlation. regression analysis. There were lifestyles(3.27), job value(3.77) in subject. The faster birth order, the higher tended to have the internal job value(p<.05). The challenge·adventure, family-oriented lifestyles were were higher in female(p<.05). In order for college students' lifestyles to have a positive meaning on job values, it is necessary to apply job values education, career aptitude tests, and application of individual counseling programs.

Effects of cooperative Blended learning in secondary science instruction (중학교 과학 수업의 온.오프라인 혼합 협동학습 효과)

  • Kim, Sung-Wan;Kwon, So-Youn
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2011.06a
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    • pp.249-252
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    • 2011
  • 이 연구는 중학교 과학 수업의 온 오프라인 혼합 협동학습에 대한 효과를 검증해 보고자 하였다. 연구의 목적을 달성하기 위해 먼저 온 오프라인 혼합 협동학습과 관련된 문헌 고찰을 통해 연구의 수행에 필요한 이론적 기반을 마련하였다. 중학교 1학년 과학 내용 중에서 연구 단원을 선정하여 온 오프라인 혼합 협동학습 모형을 제시하였다. 연구대상은 경기도 김포시에 위치한 'K'중학교 1학년 학생들 중에서 사전 학업성취도 검사와 학습태도 검사에 의해 동질집단으로 확인된 2개 학습 79명이다. 연구대상 중 1개 학습 40명을 실험대상으로 선정하여 온 오프라인 혼합 협동학습의 실험을 실시하고 통제집단에는 기존의 면대면 협동학습을 실시하였으며 실험이 끝난 후 두 집단의 학업성취도 및 학습태도 변화 차이를 비교 분석하였다. 결과 분석은 SPSS Ver.12.0을 이용하였으며 학업성취도는 다변량 분산분석(MANOVA)을 하였고, 학습태도는 독립표본 t검정을 통해 분석하였다. 분석한 연구의 결과 첫째, 중학교 과학 수업에서 온 오프라인 혼합 협동학습은 면대면 협동학습과 학업성취도에서 유의미한 차이가 나타났다. 또한 온 오프라인 혼합 협동학습 실험집단이 면대면 협동학습 통제집단보다 학업성취도의 하위 영역 중 기억 영역에 그 효과성이 두드러짐을 확인하였다. 둘째, 중학교 과학 수업에서 온 오프라인 혼합 협동학습은 면대면 협동학습과 학습태도에서 유의미한 차이가 나타나지 않았다. 연구 결과를 토대로 온 오프라인 혼합 협동학습은 첫째, 학습자들로 하여금 자료 수집, 분석, 정리 단계에서 정보의 공유를 통해 적극적으로 학습을 유도하였다고 예측할 수 있다. 이는 온 오프라인 혼합 협동학습이 면대면 협동학습보다 학업성취도 향상에 효과적인 교수학습 방안으로 제시될 수 있음을 의미한다. 둘째, 중학교 과학수업에서 온 오프라인 혼합 협동학습은 학습자의 학습태도에 효과적이라고 확신할 수 없다. 따라서 학습자의 교과에 대한 학습태도의 향상을 위해서는 교수 학습방법을 다각화하고 교과와 학습목표에 맞는 적절한 학습방법의 지속적 활용이 중요하다고 판단된다.

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Influences of Self-leardership, Career Decision-Making Self-Efficacy, and Critical Thinking Disposition on Career Preparation Behavior: Focused on Nursing Students (셀프리더십, 진로결정 자기효능감, 비판적 사고성향이 진로준비행동에 미치는 영향: 간호대학생 중심으로)

  • kim, kyoung-Ha
    • Journal of the Korea Convergence Society
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    • v.12 no.9
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    • pp.307-314
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    • 2021
  • This study examined to identify the effect of self-leadership, career decision-making self-efficacy, and critical thinking disposition on career preparation behavior in nursing students. Data were collected from nursing students attending in nursing departments in G and M cities from April to June 2019. The 208 data were analyzed by descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient, and multiple regression analysis. Self-leadership(β=.331, p<.001) and critical thinking disposition(β=.302, p<.001) reported to have effect on career preparation behavior. The study model accounted for 38.7% of career preparation behavior. These results suggest that measures to promote self-leadership and career decision-making self-efficacy should be developed and operated to improve career preparation behavior of nursing students in the nursing education field.

Effect of Gap between Expected Job and Performed Job on Turnover Intention and Job Satisfaction in Clinical Dental Hygienists (치과위생사의 기대업무와 수행업무 격차가 이직의도와 직무만족도에 미치는 영향)

  • Choi, Ha-Na;Bae, Hyun-Sook;Cho, Young-Sik
    • Journal of dental hygiene science
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    • v.11 no.5
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    • pp.463-469
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    • 2011
  • The purpose of this study was to investigate effect of gap between expected job and performed job on job satisfaction and turnover intention in clinical dental hygienists. A total 292 hygienist in dental hospitals and dental offices in nationwide completed a questionnaire on their daily routine job and job which they expected and measured gap between expected job and performed job, such as chairside assisting, preventive care, consultation, reception. The study showed the gap on chairside assisting job among age, career and showed the gap on consultation among age, education, career and showed the gap on reception among age, career. gap on chairside assisting, salary satisfaction, personal day affected job satisfaction and gap on chairside assisting, children, salary satisfaction affected turnover intention. The study showed that salary satisfaction and gap on chairside assisting associated with turnover intention and job satisfaction. Personal day affected job satisfaction but did not affect turnover intention.

The Relationship of Engineering Education Accreditation Program, Gender, and Academic Year with Attitude towards Convergence among Engineering Students: Application of Latent Class Analysis (공과대학 학생들의 융합에 대한 태도와 공학교육인증, 성별, 학년과의 관련성 -잠재집단분석의 적용-)

  • Lee, Jun-Ki;Shin, Sein;Rachmatullah, Arif;Ha, Minsu
    • Journal of The Korean Association For Science Education
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    • v.37 no.1
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    • pp.113-123
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    • 2017
  • The purpose of this study is to investigate engineering students' attitude toward convergence and relevance with engineering education accreditation, gender, and academic year and attitude toward convergence. To be specific, fist, we examined whether the instrument for measuring attitudes toward convergence were reliable and valid for engineering students. Second, we compared levels of attitudes toward convergence in terms of engineering education accreditation, gender and academic year. Third, latent classes, which were distinguished in terms of attitudes toward convergence, were identified. Participants were 2076 engineering students. By using factor analysis and Rasch analysis, validity and reliability of instrument measuring attitudes toward convergence were confirmed. The differences in attitude toward convergence in terms of engineering education accreditation experience, gender, and academic year were examined by independent t-test and ANOVA. There were significant differences in attitude towards convergence in terms of engineering education accreditation, gender, and academic year. Students who experience engineering education accreditation program and male and high academic year have higher levels of attitude toward convergence than others. Lastly latent class analysis (LCA) was conducted to identify subgroups underlying engineering students in terms of attitude toward convergence and five latent classes were identified. In addition, the chi-square results showed that there were significant relationships between identified latent classes and engineering education accreditation, gender, and academic year. Based on these results, engineering education considering students' characteristics and diversity in attitude toward convergence were discussed.

Relationship between White Matter Changes and Homocysteine Concentration in Healthy Adults (건강한 성인에서 대뇌 백질 변성과 호모시스테인 농도의 연관성)

  • Hur, Wook;Kang, Hyun Goo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.8
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    • pp.449-455
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    • 2018
  • This study was conducted to analyze the correlation between changes in white matter and homocysteine concentration through brain computed tomography of healthy 50-75 year old subjects without stroke or dementia history. We studied 722 out of 900 patients who underwent health screening at one hospital from 2016 to 2017. Based on the medical records, retrospective studies were conducted and analyzed using SPSS. A chi-square test, T-test and univariate logistic regression analysis were used for analysis. After the subjects were divided into the group with and without white matter changes, the population characteristics were analyzed. The mean age, homocysteine concentration and prevalence of hypertension and diabetes were higher and the duration of education was shorter in the group with white matter changes. In the group with white matter changes, the population increased as homocysteine concentration increased. When the odds ratio was compared based on the lowest group (Q1), age [p<0.001], hypertension [p<0.001] and hyperhomocysteinemia [p=0.021] were risk factors for white matter changes. We also identified modifiable risk factors such as hypertension and hyperhomocysteinemia to prevent complications of white matter changes. However, there has been no report of risk for the each causes of hyperhomocysteinemia and relationship between white matter changes and homocysteine concentration in Koreans. Therefore, large scale prospective studies are needed to better understand this topic.

Prevalence Rates of and Related Factors to Constipation in Elementary School Students (초등학생의 변비 발생률과 관련요인)

  • Kim, Eun-Young;Jung, Eun-Young
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.7
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    • pp.597-606
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    • 2016
  • This is descriptive research to understand the constipation rate of elementary school students due to their differences in cognition of their eating habits, hours of exercise/physical activity, stress, and school restroom environment in accordance with the matter of constipation, as well as the factors related to the constipation rate. A total of 741 students (grade3-6) from six elementary schools in Jeollanam-do were targeted; the survey was conducted from April 30th to May 12th, 2014. The frequency, percentage, ${\chi}^2$ test, independent t-test, and bivariate logistic regression analysis were conducted. The constipation rate was 23.9%, and there were factors related to the constipation rate, such as restroom preference, matter of defecation during breaks, number of meals per day, number of breakfasts skipped, size of the meal, hours of institute class, hours of internet use, stress, and cognition of school restroom environment. In particular, students with 'high' stress had a 5.44 times higher rate of constipation than students with 'low' stress. As subjective symptoms are limited in diagnosing constipation, a detailed medical examination and physical checkup should be included in the process of understanding the constipation rate, as well as in education and management to prevent elementary school students from having constipation.

A Study on Degree of Interest in Health Projects Among Public Servants of Local Centers and Local Residents (보건사업에 관한 주민센터 공무원과 지역주민의 관심차이)

  • Kim, You Ho;Choi, Gyu yil
    • Journal of Digital Convergence
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    • v.18 no.5
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    • pp.521-530
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    • 2020
  • This study was intended to provide basic data for increasing the interest in health projects for the public servants and local residents in the period ahead by examining the difference in the degree of interest in health projects among the public servants at resident centers and the residents. For that, 46 public servants at resident centers and 107 local residents were sampled, and their degree of interest in specific health projects was analyzed based on Chi-Square and independent sample t-test. Based on comprehensive consideration of the results of analysis, public servants at resident centers were found to have lower interest in health projects than local residents. The results of this study showed that the public servants at resident centers had lower interest in health projects than local residents. That arises from the consideration that specialization is important for implementation of special works. Thus, this study needs to focus on expanding the role of public servants to ensure that resident centers can take on integrated role related to public health. Therefore, the results of this study can provide basic data for expanding the role of public servants at resident centers. Moreover, the results of this study suggested that various ways need to be explored to increase the interest in health projects for local residents.

A study on Career identity, Satisfaction in major, and Adjustment to college life for students of Department of Food and Nutrition at a University (일 대학 식품영양학과 학생의 진로정체감, 전공만족도 및 대학생활적응에 관한 연구)

  • Lee, Songmi;Cho, Jihyun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.10
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    • pp.6698-6707
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    • 2015
  • The purpose of this study is to investigate relationships among career identity, satisfaction in major, and adjustment to college life for students who major in food and nutrition that is complex and has diversity of carrier and to serve as a guideline for career counselling and college life. After reliability and validity of the data collected were verified using IBM SPSS Statistics 22, difference in variables according to characteristics of students was examined using independent t-test, ANOVA, and chi-square test. The results showed that there was a positive correlation among career identity, satisfaction in major, and adjustment to college life and students who had prior knowledge of their major showed a higher level of career identity, satisfaction in major and adjustment to college life compared to those who did not. Therefore, it is suggested that guidance on Department of Food and Nutrition should be provided to students before they decide on their major for their increased satisfaction in major, smooth adjustment to college life, and career decision. With this data, we recognize the gravity of psychological factor and carrer consciousness may provide base data to practical use of student life and carrer guidance.