• Title/Summary/Keyword: 독립표본 t-검증

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Analysis of Impact on Disaster Prevention Capability of Residents in Resident Participation Safety Improvement Project -Focused on Project of Creating a Safety Village in Sindeok, Daegu- (주민참여형 안전개선사업이 주민방재역량에 미치는 영향분석 -대구 신덕 안전마을 만들기 사업을 중심으로-)

  • Yoon, Sanghoon;Park, Sosoon
    • Journal of the Society of Disaster Information
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    • v.16 no.4
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    • pp.758-767
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    • 2020
  • Purpose: The purpose of this study is to analyze the impact of disaster prevention capability of residents according to before and after resident participation safety improvement project and to present implication. Method: The difference in disaster prevention capability of residents before-after project was compared and analyze using the independent sample t-test. Result: As a result of analysis, it was found that the resident participation safety improvement project had an effect on the disaster prevention capability of residents before-after project. Among them, the parts related to degree of preparation of evacuation and organizational disaster prevention capability were found to have a positive effect Conclusion: When promoting a resident participation safety improvement project, it is necessary to explore and consider various ways to improve the disaster prevention capability of residents and regions.

Effects on Micro-learning Contents on University Students' Learning Flow and Learning Motivation based on Extracurricular Program (마이크로러닝 콘텐츠 기반 비교과 프로그램이 대학생의 학습몰입, 학습의욕에 미치는 영향)

  • Gwak Chan Mi;Dong Yub Lee
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.6
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    • pp.973-980
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    • 2023
  • This study analyzed the effects of a Micro-learning content-based extracurricular program among university students based on their general characteristics. A survey was conducted on 600 students affiliated with G University, a major national university. Learning immersion and learning motivation were used as the key indicators for measuring the learning effects. Cronbach's α coefficient analysis was performed to validate the reliability of the learning effect measurement tool. Independent sample t-tests were utilized to analyze differences in learning immersion and learning motivation based on gender and major disciplines. One-way analysis of variance (ANOVA) was employed to measure differences in learning immersion and learning motivation according to academic year. According to the research findings, gender and academic year did not significantly influence participation in the Micro-learning content-based program. However, differences in learning immersion and learning motivation were observed depending on the major discipline. Based on this, it is suggested that future programs should provide suitable environments and stimuli based on the students' major disciplines.

Influence of Digital Literacy and Academic Self-Efficacy on Problem-Solving Competence in Nursing Students (간호대학생의 디지털 리터러시와 학업적 자기효능감이 문제해결능력에 미치는 영향)

  • Eun-Hwi Kim
    • Journal of Industrial Convergence
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    • v.21 no.9
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    • pp.113-121
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    • 2023
  • This is a descriptive survey research aimed at investigating the level of digital literacy and verifying the impact of digital literacy and academic self-efficacy on problem solving in nursing students, with fousing on digital literacy, which is emerging in the era of the 4th Industrial Revolution. Data were collected between April and May 2022 from 118 nursing students at a university located in K City, and were analyzed using descriptive statistics, two-sample t-test, one-way ANOVA, and multiple regression with the SPSS 18.0 program. The results showed that nursing students generally have good digital literacy, but they struggle with specific areas like material development and information evaluation. Nursing students' digital literacy (β=.311, p=.001), followed by academic self-efficacy (β=.184, p=.048), had a significant impact on problem-solving ability (F=12.237, p< .001), as explanaing 16.1% of the variation. To improve nursing students' digital literacy and problem solving, developing a more structured and situation-oriented nursing education curriculum is needed.

Differences between students' and teachers' perceptions of psychological learning environments in science instruction (과학수업의 심리적 학습 환경에 대한 교사와 학생의 인식 비교)

  • Park, Hyun-Ju;Suh, Ho-Nam
    • Journal of The Korean Association For Science Education
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    • v.29 no.5
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    • pp.492-500
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    • 2009
  • The purpose of the study was to investigate middle school students' and teachers' perception of psychological learning environments as well as the differences between them. This study sampled 503 middle school students and the 16 teachers who taught them. 'Psychological Learning Environment Instrument by Science Teacher' was implemented to collect data. Frequency analysis and descriptive statistics, as well as t-test, ANOVA were used for basic analysis of data. There were statistically meaningful differences in students' perception of psychological learning environments by gender, science achievement, science preference and self-efficacy in science. However, there are no differences in teachers' perceptions of psychological learning environments by gender, age, career year and major. The difference between teachers' and students' perception of psychological learning environments was not large, showing no statistical significance. However, teachers' perceptions of psychological learning environments was a little higher than that of students.

Effects of Energy System Contribution on Isokinetic Muscle Strength in Various Sport Events Athletes (무산소, 유산소 운동종목별 엘리트선수의 등속성 근기능에 미치는 영향)

  • Kwon, Hyeong-Tae;Kim, Ki-Hoon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.10
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    • pp.272-279
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    • 2018
  • This study was conducted to compare the muscle strength, muscle power, and H/Q ratio according to energy system contribution in athletes participating in various sports. Subjects of the study were assigned into an Anaerobic Exercise Group (AEG, n=60; Short-Distance, Weight Lifting, Jumping, Throwing, Bowling, Golf) and an Endurance Exercise Group (EEG, n=60; Modern Pentathlon, Field Hockey, Handball, Cycle, Boxing, Rowing) groups. Isokinetic peak torque/body weight% and flexor/extensor ratio at 60, 180 deg/sec of knee extension and flexion were measured using an cybex 770. Data analysis was conducted using an independent t-test and one-way ANOVA. Based on the results of this study, there was higher extension, flexion strength and flexion power in the AEG than the EEG (p<0.05). We also confirmed higher muscle strength and muscle power in short distance and jumping athletes than other athletes participating in other events (p<0.05). However, there was no significant difference within the endurance exercise group. The HS ratio was within a stable range of 50% to 60% in all events. Collectively, the outcomes of this study indicate that routine physiological and performance testing can provide measurable benefits for elite athletes and their coaches.

A Validation Study of the Creative School Environment Perceptions Scale and A Study of Group Differences (창의적 학교환경에 대한 인식 척도의 타당성 검증 및 집단 차이 연구)

  • Jo, Son-Mi
    • Journal of Gifted/Talented Education
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    • v.22 no.3
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    • pp.663-677
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    • 2012
  • The purpose of the study was to verify validity of Creative School Environment Perceptions (CSEP) scale developed based on the scale developed in 2010 by Mayfield and Mayfield. Factor analysis was used to assess construct validity. Another purpose of the study was to investigate factors related to students' perception of creative school environment through use of the group differences. The research participants were 203 elementary school students and all of them were 5th and 6th grade students. Factor analysis indicated that CSEP scale consist of three factors: creativity support, work characteristics, and creativity blocks. In addition the correlation between CSEP scale and the previous scale were investigated to verify the validity of CSEP scale. The results showed that the convergent validity were obtained. Independent-sample t test was performed to test for specific loci of significant between group differences in gender, grade, and the level of ideational behavior. The finding showed that 6th grade students said that their environment hinder creativity. Students with the high level of ideational behavior perceived their school environment was supportive while students with the low level of ideational behavior perceived their school environment was obstructive. Therefore teachers should understand students' perception of creative school environment using CSEP scale and should change students' perception of creative school environment through considering grade and the level of ideational behavior.

Pupil Data Measurement and Social Emotion Inference Technology by using Smart Glasses (스마트 글래스를 활용한 동공 데이터 수집과 사회 감성 추정 기술)

  • Lee, Dong Won;Mun, Sungchul;Park, Sangin;Kim, Hwan-jin;Whang, Mincheol
    • Journal of Broadcast Engineering
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    • v.25 no.6
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    • pp.973-979
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    • 2020
  • This study aims to objectively and quantitatively determine the social emotion of empathy by collecting pupillary response. 52 subjects (26 men and 26 women) voluntarily participated in the experiment. After the measurement of the reference of 30 seconds, the experiment was divided into the task of imitation and spontaneously self-expression. The two subjects were interacted through facial expressions, and the pupil images were recorded. The pupil data was processed through binarization and circular edge detection algorithm, and outlier detection and removal technique was used to reject eye-blinking. The pupil size according to the empathy was confirmed for statistical significance with test of normality and independent sample t-test. Statistical analysis results, the pupil size was significantly different between empathy (M ± SD = 0.050 ± 1.817)) and non-empathy (M ± SD = 1.659 ± 1.514) condition (t(92) = -4.629, p = 0.000). The rule of empathy according to the pupil size was defined through discriminant analysis, and the rule was verified (Estimation accuracy: 75%) new 12 subjects (6 men and 6 women, mean age ± SD = 22.84 ± 1.57 years). The method proposed in this study is non-contact camera technology and is expected to be utilized in various virtual reality with smart glasses.

Sex Differences in Bone Marrow Density Measured by Quantitative Ultrasonometry: For 20 year old college student (정량적 초음파 측정에 의한 골밀도의 남녀 차이: 20대 대학생 대상으로)

  • Lee, Won-Jeong
    • Journal of radiological science and technology
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    • v.40 no.3
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    • pp.401-405
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    • 2017
  • The Purpose of this study is to compare the bone marrow density measured by quantitative ultrasonometry (QUS) between men and women. Questionnaires for general characteristics were obtained from 104 participants, and then their both calcaneus was measured by using QUS. Sex differences for bone marrow density (BMD) were analyzed by an Independent t-test using the SPSS 19.0 program. Of 104 participants, women and men were 69(66.3%) and 35(33.7%), respectively. T-value of left calcaneus was high significantly in women than that in men(0.443 vs. 0.031, p=0.161) as well as that of right calcaneus(0.555 vs. 0.049, p=0.093). T-value of right calcaneus was high than that of left calcaneus in women and men (not significant, p>0.05). T-value of both calcaneus was increasing with physical activity. T-value of calcaneus was no statistically significant with age and body mass index. The BMD of women is high significantly more than that of men, and BMD is relation with physical activity.

Emotion Recognition Method of Competition-Cooperation Using Electrocardiogram (심전도를 이용한 경쟁-협력의 감성 인식 방법)

  • Park, Sangin;Lee, Don Won;Mun, Sungchul;Whang, Mincheol
    • Science of Emotion and Sensibility
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    • v.21 no.3
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    • pp.73-82
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    • 2018
  • Attempts have been made to recognize social emotion, including competition-cooperation, while designing interaction in work places. This study aimed to determine the cardiac response associated with classifying competition-cooperation of social emotion. Sixty students from Sangmyung University participated in the study and were asked to play a pattern game to experience the social emotion associated with competition and cooperation. Electrocardiograms were measured during the task and were analyzed to obtain time domain indicators, such as RRI, SDNN, and pNN50, and frequency domain indicators, such as VLF, LF, HF, VLF/HF, LF/HF, lnVLF, lnLF, lnHF, and lnVLF/lnHF. The significance of classifying social emotions was assessed using an independent t-test. The rule-base for the classification was determined using significant parameters of 30 participants and verified from data obtained from another 30 participants. As a result, 91.67% participants were correctly classified. This study proposes a new method of classifying social emotions of competition and cooperation and provides objective data for designing social interaction.

A Study on Integrated Marketing Communication(IMC) Activities to Increase the Crowd of Professional Volleyball Teams (프로배구구단 관중증대를 위한 통합적 마케팅 커뮤니케이션(IMC)활동에 관한 연구)

  • Kim, Kyoung-Hyun;Park, Sung-Su;Park, Kyeong-Rae
    • Journal of Korea Entertainment Industry Association
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    • v.14 no.7
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    • pp.95-106
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    • 2020
  • The study was conducted to investigate the effectiveness of professional volleyball teams' integrated marketing communication(IMC) activities. The subjects of this study were a total of 400 surveys of visitors who visited the stadium to watch mans professional volleyball games from 2019 to 2020, and 385 questionnaires except for invalid or error questionnaires were used for research purposes. For factor analysis and reliability testing, IBM SPSS Statistics Ver 21.0 was used. Frequency analysis was conducted to examine the general characteristics. To verify differences between groups according to demographic and general characteristics, independent sample t-test and one-way ANOVA were performed, and correlation analysis was performed to examine the relationship between variables. In addition, regression analysis was conducted to verify the influence between variables. The results of the study are as follows. First, there was no difference in club image, club reputation, and club loyalty by gender. Second, there was no difference in club image, club reputation, and club loyalty according to age. Third, there was no difference in the club image, club reputation, or club loyalty according to the viewing experience. Fourth, professional volleyball team IMC activities were found to affect the club image. Fifth, professional volleyball team IMC activities were found to have an impact on the club's reputation. Sixth, it was shown that professional volleyball team IMC activities have an effect on club loyalty. Eighth, the club image was found to affect the club loyalty. Finally, it was found that the club reputation influenced the club loyalty.