• Title/Summary/Keyword: 대응표본 t-검정

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Effect of chest compressions on the quality of back pain prevention and chest compressions by applying body stabilization Convergence movement (체간안정화 융합운동을 접목한 가슴압박이 요통예방과 가슴압박 품질에 미치는 영향)

  • Hong, Eun-Jeong;Cho, Byung-Jun;Kim, Gyoung-Young
    • Journal of the Korea Convergence Society
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    • v.10 no.5
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    • pp.85-94
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    • 2019
  • This study was aimed to identify a study on the effect of chest compressions combined with abdominal drawing-in technique on prevention of back pain and chest compression quality. We tested motion analysis, electromyography, and chest compression quality of 15 paramedics. Data were normalized to SPSS 21.0 (Kolmogorov-Smirnov and Shapiro-Wilk test). The paired t-test was used for the pre- and post-test chest compressions, the one-way ANOVA was used for the analysis of the measurement point-in-time differences, and LSD was used for the post-test. The results of the study showed significant difference in muscle activity and chest compression success rate when the chest pressure was applied with abdomen drawing-in. Therefore, it is necessary to study cardiopulmonary resuscitation education which can increase the chest compression success rate while preventing the back pain of the paramedics in the future.

Research on the Importance and Satisfaction of Selection Attribute for Pension using Importance-Performance Analysis(IPA) (IPA를 활용한 관광펜션업 선택속성의 중요도-만족도 연구)

  • Kim, Yeon-Sun;Lee, Sang-Hee
    • The Journal of the Korea Contents Association
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    • v.13 no.3
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    • pp.392-401
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    • 2013
  • This study was conducted to research the Selection Attribute for Pension which is located in the region of S. Gyeonggi-do. We intended to find the best choice point for reserving the pension using IPA and suggest or provide strategic implications and marketing method for running the pension. The survey was conducted from the early January to the end of March in 2012 with one to one method. A total of 300 questionnaires were distributed and 229 responded questionnaires were reliable to be used as a sample. The result of the survey was analyzed by using SPSS 15.0 version for window with Paired t-test and IPA method. Frequency Analysis was also conducted for the characteristic of samples. Findings are presented and discussed in three areas. First, the cleanliness of rooms, service for customer, heating and cooling system are the key important factors for the choice of pensions. Secondly, all factors are statistically significant level(p<0.01, p<0.001) as a results of performing IPA method. Thirdly, the result has shown that the varity of programs in the pension have significant impact on the customers' choice and satisfaction.

Research on the Importance and Satisfaction of Selection Attribute for Hanok Village using Importance-Performance Analysis(IPA) (IPA기법을 활용한 한옥마을 선택속성의 중요도-만족도 연구)

  • Kim, Yeon-Sun
    • The Journal of the Korea Contents Association
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    • v.20 no.7
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    • pp.585-593
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    • 2020
  • This study was conducted to research the Selection Attributes of tourists in Jeonju Hanok Village. The purpose of this study was to study the importance and satisfaction after visiting the Jeonju Hanok Village using IPA analysis, and to provide results and marketing implications. The survey was conducted from the October to the November in 2018. A total of 300 questionnaires were distributed and 258 responded questionnaires were reliable to be used as a sample. The result of the survey was analyzed by using SPSS 15.0 version for window with Paired t-test and IPA method. Frequency Analysis was also conducted for the characteristic of samples. As a result of the study, first, the cleanliness of tourist attractions was the highest among the selection attributes, and the next ranking was in the order of parking lot facilities, natural scenery, food, and weather. Second, the natural property was the most satisfactory as a selection property item that tourists visiting Hanok Village were satisfied with, followed by climate(weather), regional characteristics, historical and cultural resources, and cleanliness of tourist attractions. Third, depending on the importance-satisfaction value of the selection attribute variable perceived by tourists visiting Hanok Village, it is necessary to develop various programs in Hanok Village and prepare measures to increase tourist satisfaction.

The Effect of Ear-Therapy on Change of Adolescence Brain Function (이(耳)봉요법이 청소년기 뇌기능변화에 미치는 영향)

  • Byun, Youn-Eon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.11 no.9
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    • pp.3284-3288
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    • 2010
  • This experiment, through the use of Ear-Therapy by a Cylindrical bar, analyzed the change of adolescence brain function. For this experiment, from the months of Nov. until Dec. 2009, 41 subjects were selected students the experimental group 21, the comparison group 20 that adolescence lives in Kyonggi-do southern region. pre and post treatment were measured with a paired t-test. The results of study confirmed significant change of mental relaxation quotient. Therefore, this results show that Ear-Therapy is a effective for mental stress reduction and mental relaxation in adolescence brain function.

Accident Models of Rotary by Vehicle Type (차량유형별 로터리 사고모형)

  • Han, Su-San;Park, Byeong-Ho
    • Journal of Korean Society of Transportation
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    • v.29 no.6
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    • pp.67-74
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    • 2011
  • This study deals with the traffic accidents data from the Korean rotaries (circular intersections) to verify their characteristics affected by different vehicle types. This paper categorized the data into three groups based on vehicle types, and developed a set of accident models. The paper proposed two ZIP models and one negative binomial model through a statistical analysis for three vehicle types: automobile, truck and van, and others. The differences among those models were then statistically compared.

An explorative study on the perceived emotion of music: according to cognitive styles of music listening (음악정서인식에 대한 탐색 연구: 음악인지유형 중심으로)

  • Choi, Jin Hee;Chong, Hyun Ju
    • The Journal of the Acoustical Society of Korea
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    • v.40 no.4
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    • pp.290-296
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    • 2021
  • The purpose of this study was to examine the perceived emotion of music according to cognitive styles of music listening. A total of 91 music-related graduate students participated in this study. They were given a questionnaire about perceived emotions of music, musical elements, and Music Empathizing-Music Systemizing Inventory. To analyze statistically, Descriptive statistics, paired t-test, ANalysis Of VAriance (ANOVA), multi-variate analysis, and Pearson correlation analysis were conducted. Results showed that participants had relatively universal experience in perceived emotions of both types of music, and also showed that musical elements contributed to the experience differed by cognitive styles of music listening.

A Study on Performance Evaluation of Container-based Virtualization for Real-Time Data Analysis (실시간 데이터 분석을 위한 컨테이너 기반 가상화 성능에 관한 연구)

  • Choi, BoAh;Han, JaeDeok;Oh, DaSom;Park, HyunKook;Kim, HyeonA;Seo, MinKwan;Lee, JongHyuk
    • Proceedings of the Korea Information Processing Society Conference
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    • 2020.05a
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    • pp.32-35
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    • 2020
  • 본 논문은 실시간 데이터 분석을 위한 컨테이너 가상화 기술 사용에 대한 효용성을 알아보기 위해 HDP 와 MapR 배포판에 포함된 Spark 를 도커라이징 전과 후 환경에 설치 후 HiBench 벤치마크 프로그램을 이용해 성능을 측정하였다. 그리고 성능 측정치에 대해 대응표본 t 검정을 이용하여 도커라이징 전과 후의 성능 차이가 있는지를 통계적으로 분석하였다. 분석 결과, HDP 는 도커라이징 전과 후에 대한 성능 차이가 있었지만 MapR 은 성능 차이가 없었다.

A Study on the Expectation and Satisfaction of Parents on Cooking Activity Programs for Children (아동 요리활동 프로그램에 대한 학부모의 기대와 만족에 관한 연구)

  • Yang, Yeo-Jung;Yoon, Hye-Hyun
    • Culinary science and hospitality research
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    • v.20 no.2
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    • pp.152-164
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    • 2014
  • This research attempts to analyze the significant factors that affect the level of expectation and satisfaction of parents on cooking activities for their child(ren) by comparing the levels of their original expectation and satisfaction; based on the understanding of the educational values and effects of cooking activities for children. To conduct the empirical studies, 254 survey samples were collected from the parents who have had their child(ren) participate in cooking activities; in addition, the data was processed and analyzed by using various comparative statistical analysis; including t-test, IPA analysis, regression analysis, one-way ANOVA. And Duncan's multiple test was added to verify the outcome afterwards. As the result of the research, the expectation and satisfaction of parents who let their child(ren) participate in cooking activities were significantly different by such variables as 'improvement of linguistic expression,' 'development of understanding numbers and scientific concepts,' 'extension of capability to give his/her emotional expressions,' 'assistance in soothing his/her psychological stresses.' Besides, 'educational contents and methods' were revealed as another factor that influenced parents' satisfaction, and it is clarified that the level of satisfaction is significantly different according to the organizations offering activity programs.

Physical Functions of Industrial Workers with Chronic Low Back Pain and Changes in Health-related Quality of Life according to Virtual Reality Exercise Program (가상현실 운동프로그램에 따른 산업체 만성요통환자의 신체기능과 건강관련 삶의 질의 변화)

  • Ko, Dae-Sik;Jung, Dae-In;Lee, Sang-Heon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.10
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    • pp.4564-4571
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    • 2012
  • This study performed a virtual reality exercise program for self-back pain control of industrial workers with chronic back pain and analysed their physical function and health-related quality of life relating to industrial chronic back pain. The subjects of the study were thirty chronic back pain patients working for K company and were divided into Nintendo Wii Sports Group made of 15 subjects and Physical Therapy Group made of 15. As variables for physical functions, back strength, flexibility, balance and pain were measured and for the health-related quality of life, SF-36 of each group was measured before and after the exercise program. To compare differences before and after the program, a paired t-test was used and to compare differences between both groups, an independent samples t-test was used. As a result of the test, it was discovered that balance and pain of the both groups were improved statistically significantly. Physical functions of the Nintendo Wii Sports Group were improved statistically significantly in comparison with those of the Physical Therapy Group. The health-related quality of life was improved statistically significantly only for the Nintendo Wii Sports Group. In conclusion, it is suggested that as the virtual reality exercise program had a positive influence on chronic back pain of industrial workers, it should be considered as a home exercise program for back pain control.

The Effect of Parent Education Program Based on Sensory Integration Approach on the Parent's Understanding of Sensory Processing Ability of Children With Developmental Delays (감각통합접근 부모교육이 발달지체 아동의 감각처리능력에 대한 부모의 이해도에 미치는 효과)

  • Park, Hae-Seong;Kim, Kyeong-Mi;Chang, Moonyoung
    • The Journal of Korean Academy of Sensory Integration
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    • v.13 no.1
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    • pp.33-43
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    • 2015
  • Objective : The purpose of this study is to investigate the effect of parent education program with sensory integration approach on the parent's understanding of sensory processing ability of their own children with developmental delays. Methods : The period of this study is from March 15, 2015 to May 10, 2015. The participants of this study were thirty of parents who have children with developmental delays. The participants were randomly divided as experimental group (15 parents) and control group (15 parents) and an educational program was provided to those parents in the experimental group. The education program was developed based on sensory integration approach and 1:1 intensive individual counseling education. Short Sensory Profile (SSP) & a specially designed questionnaire were used to evaluate the parent's understanding of sensory processing ability of their children with developmental delays. The effect of between the groups was analyzed using an independent two samples t-test, and the effect of the intervention within a group was measured using the paired t-test. Results : After the intervention of parent education program, the total score of SSP was significantly decreased and the score of the parent questionnaire was significantly increased (p<.05). Conclusion : The results of this study show that parent education program with sensory integration approach is effective to improve the parent's understanding of sensory processing ability of their children with developmental delays. This study can be used as a good resource for therapists who is planning to provide sensory integration treatment for children with disabilities.