• Title/Summary/Keyword: 표본표준편차

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A Comparative Study on the Physical Fitness and Obesity of Students with Intellectual Disability and Non-disabled Students for the Integrated Middle School Sports (중학교 통합체육을 위한 지적장애학생과 비장애학생의 건강체력 및 비만 비교 연구)

  • Bae, Kwang-Youl
    • Journal of Digital Convergence
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    • v.18 no.3
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    • pp.93-98
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    • 2020
  • The subjects of this study were 10th grade students and 10 non-disabled students. For statistical programs, data were processed using SPSS Windows 25.0, and the statistical method used in the study was to calculate the mean and standard deviation of physical fitness factors and body mass index to determine the health and obesity of students with intellectual disabilities and non-disabled students. In addition, this study was conducted using the independent sample t-test to identify the differences in health fitness and obesity between intellectually and non-disabled students. The statistical significance level of the study was set at p <.05, and the results of the study showed that there were statistically significant differences in cardiopulmonary endurance, flexibility, muscle strength, muscle endurance, and responsiveness between middle and high school students with intellectual disabilities and non-disabled students. In the case of obesity, intellectually and non-disabled students were significantly different.

Effects of various support programs on the development of traditional performing arts industry (전통공연예술단체 발전요소에 따른 지원의 효과 연구)

  • Kim, Myungho;Park, Jeong-Bae
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.11
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    • pp.7831-7837
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    • 2015
  • In order to understand how various support programs affect the development of traditional performing arts, I used descriptive statistics and multivariate statistics analysis on 267 surveys. I estimated relationship between item-whole by calculating mean and standard deviation. This will help us comprehend effects of the variables. Cronbach alpha coefficient, a measure of internal consistency, exceeded 0.7, indicating that reliability is satisfactory. I have established one main hypothesis and four sub-hypothesis to identify the relationship between support programs and the performing arts more clearly. The result supports that the support programs do have effects on the performing arts. However, there are not enough researches done on this subject, and additional researches are needed in order to systemize relevant theories and the development of performing arts industry.

The Relationship Between The Type of R&D Investment and a Firm's Performance (연구개발 투자성향과 기업성과의 관계)

  • Kim, Kyung-Ihl
    • Journal of Convergence for Information Technology
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    • v.8 no.4
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    • pp.213-217
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    • 2018
  • The relationship between R&D investment and subsequent change has been mostly confirmed under additional influencing factors, with the form of innovation investments. The research assumes that a firm adjusts its R&D spending in accordance to performance feedback. It is argued that an increased fluctuation of a firm's R&D expense is related to a reduced performance. This hypothesis is tested on SME in World class 300 Projet by SMBA. Using panel data models, instability measured by SD is related to performance levels measured by ROA, ROE & PM. Results support the proposed relationship between R&D expense instability and the subsequent performance. Although a causal link cannot be clearly established, the results indicate that firms with a lower performance have higher R&D investment fluctuations, possibly being more responsive to performance feedback.

The Factors Affecting Life Satisfaction of College Students (대학생의 삶의 만족도에 영향을 미치는 요인)

  • Jo, Nam-Hee;Kwon, Ryeo-Won
    • Journal of Convergence for Information Technology
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    • v.11 no.7
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    • pp.155-163
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    • 2021
  • This study was conducted to identify factors that affect the life satisfaction of college students. The subjects of this study were 191 students from three universities located in one area, and the data collection used self-reported questionnaires. Data analysis was performed using frequency, percentage, mean, standard deviation, Independent T-test, One-way ANOVA, Pearson Correlation Coefficient, and Multiple Regression Analysis. The results of the study showed that significant factors affecting the life satisfaction of the subjects were self-esteem and school life satisfaction, and the explanatory power according to the influence factors was 42.3%. The research results suggest that improving college students' self-esteem and school life satisfaction can help them improve their life satisfaction. Therefore, it is necessary to consider self-esteem and school life satisfaction when developing educational programs to improve the life satisfaction of college students in the future.

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.

The Effect of Golf Participation on Exercise Adherence through Exercise Immersion (성인골프참여가 운동몰입을 통한 운동지속에 미치는 영향)

  • Lee, Seung-Do
    • Journal of Korea Entertainment Industry Association
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    • v.14 no.5
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    • pp.103-114
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    • 2020
  • The purpose of this study is to analyze the difference of the effect of adult golf participation on the exercise adherence through the exercise immersion and to suggest the adherence golf exercise. To achieve this purpose, 40~70 age subjects of adult golf club located in Gyeongsangnam-do jinju city were selected in January 2020 and sampled by systematic cluster random sampling. First, factor analysis and reliability analysis were conducted to secure validity and reliability. Second, the frequency analysis average(M) standard deviation(sd) were conducted to investigate the general characteristics of the respondents. Third, t-test and one-way ANOVA analysis were conducted to identify differences between exercise immersion and exercise adherence according to general characteristics. Fourth, correlation analysis and multiple regression analysis were conducted among variables. The results of this study through these methods and procedures are as follows. First, there was no significant difference in the exercise impression and exercise adherence of general characteristics. Second, exercise immersion showed a high difference in exercise adherence. Third, exercise immersion had a high effect on exercise adherence.

Investigation of Nutrition Knowledge, Eating Behaviors, and the Need for Integrated Programs to Improve Eating Behaviors According to the Residential Type of Female College Students (여대생의 거주 형태에 따른 영양 지식, 식이 행동 및 식이 행동 개선 통합프로그램에 대한 요구도 조사)

  • Chae, Myung-Ock
    • Journal of Digital Convergence
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    • v.20 no.5
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    • pp.833-846
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    • 2022
  • This study was conducted to identify nutrition knowledge, eating behaviors, and the need for an integrated program to improve eating behaviors according to residential type of female college students. Data were collected from March 16 to April 16, 2021, using online self-report questionnaires and the final 217 data were used. To analyze data, frequencies and percentages, means and standard deviations, independent sample t-test, and ANOVA were conducted using SPSS WIN 26.0. The results showed that home residents had better eating behaviors than those living in rented rooms. Moreover, the demand for an integrated eating behavior improvement program for disease and health information topic was higher among home residents and participants in rented rooms than among those living in dormitories. When developing an integrated program for improving eating behaviors among female college students, it is essential to apply a differentiated intervention program that considers residential type.

Application of the large-scale climate ensemble simulations to analyze future changes of precipitation characteristics (미래의 강수 특성 변화 분석을 위한 대규모 기후 앙상블 모의자료의 적용)

  • Kim, Youngkyu;Son, Minwoo;Jung, Kwansue
    • Proceedings of the Korea Water Resources Association Conference
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    • 2022.05a
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    • pp.325-325
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    • 2022
  • 본 연구는 용담댐 유역을 대상으로 현재 기후조건 대비 미래 기후조건에서의 강우 특성의 변화 분석을 목적으로, 대규모 기후 앙상블 모의실험 기반으로 생성된 d4PDF(Data for Policy Decision Making for Future Change)를 적용하였다. d4PDF 자료는 현재 기후조건에서 3000 개의 연 강수 자료를 제공하고, RCP 8.5 시나리오를 따르는 미래 기후조건에서 5400 개의 연 강수자료를 제공하기 때문에, 각 기후조건에서 대규모 표본크기를 이용하는 것이 가능하다. 이는 현재 기후조건과 미래 기후조건 사이의 강수 특성의 변화를 합리적으로 분석할 수 있도록 한다. 연평균강수량 및 계절별 평균강수량은 미래 기후조건에서 10% 이상 증가하였다. 10 mm 이상의 규모를 나타내는 호우의 발생일 수는 3 일에서 4 일 증가하였다. 본 연구는 연 최대 일강우량의 변화 및 특정 장기간 재현기간을 나타내는 확률강우량의 변화도 분석하였다. 그 결과, 미래 기후조건에서 더 높은 평균 및 표준편차를 나타냈다. 이 결과는 미래 기후조건에서 연 최대 일강우량 계열들이 더 높은 규모를 나타내고, 더 넓은 분포 형태를 나타내는 것을 의미한다. 이와 같은 특징은 미래 기후조건의 특정 재현기간을 나타내는 확률강우량의 규모 증가에 영향을 주었다. 현재 기후조건 대비 미래 기후조건의 확률강우량은 재현기간 10 년, 20 년, 50 년, 100 년, 200 년, 400 년에서 약 20% 증가하였다. 이 결과는 특정 규모에서 강우의 재현기간이 미래 기후조건에서 더 짧아지는 것을 의미하며, 또한 극한 규모의 강우량의 발생가능성이 미래 기후조건에서 증가한다는 것을 의미한다. 결과적으로, d4PDF 는 미래 기후에 따른 기존 강우의 특성 및 극한강우량의 변화 분석에 충분히 유용한 자료로 사용될 수 있을 것이다.

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A study on the anterior tooth size discrepancies among orthodontic patients with varying malocclusions (부정교합자의 전치부 치아크기 부조화에 관한 연구)

  • Kim, Hyeok-Soo;Shim, Hae-Young;Nahm, Dong-Seok
    • The korean journal of orthodontics
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    • v.35 no.6 s.113
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    • pp.420-432
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    • 2005
  • Bolton analysis is widely used to predict tooth size discrepancy. but its accuracy has been challenged. The purpose of this study was to describe true anterior tooth size discrepancies among orthodontic patients and to evaluate the factors that affect true anterior tooth size discrepancies. The subjects consisted of 80 patients with varying malocclusions (Class I. Class II. Class III. and Class III surgery) who were treated orthodontically. Pre-treatment models. set-up models from post-treatment models. and lateral cephalometric radiographs were analyzed The results were as follows. The means. the standard deviations. and ranges of anterior Bolton ratio in the present study were somewhat higher than those of Bolton's samples and Korean normal samples. The number of patients showing maxillary deficiency was larger than that of patients showing maxillary excess in view of true anterior discrepancies. There was a significant difference between anterior Bolton discrepancy from pre-treatment models and true anterior discrepancy from set-up models (p < 0.05) There was no significant difference in true anterior discrepancies among malocclusion groups (p > 0.05). And there was also no significant difference between the male and female groups (p> 0.05). Overbite and the incisal edge thickness of maxillary anterior teeth have little relationship with true anterior discrepancies. Multiple regression analysis showed that true anterior discrepancy was mainly determined by anterior Bolton ratio, upper incisor to occlusal plane angle after treatment. interincisal angle after treatment. and upper right lateral incisor width.

A case study on the effect of communication training program on nurse's communication ability, emotional intelligence (EQ), self - esteem and interpersonal ability (의사소통 훈련 프로그램이 간호사의 의사소통능력, 감성지능(EQ), 자존감 및 대인관계능력에 미치는 효과에 대한 사례연구)

  • Yoo, Mi-Ja
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.6
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    • pp.280-290
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    • 2018
  • This study was a non-equivalence-based Quasi experimental study comparing the difference in communication ability, emotional intelligence (EQ), self-esteem, and interpersonal abilities between an experimental group with communication training and a non-control group. The subjects of the study were nurses working for D university hospital located in C city and comprised an experimental group of 21 people and a control group of 21 people. From April to May 2017, the experimental group took communication training programs, which were designed to improve communication capacity, emotional intelligence, self-esteem, and interpersonal ability for a total of four sessions (for 2 hours a week), and pre-post examination was conducted for the validity of the study. For data analysis, the SPSS for Windows 23 was used for the mean and standard deviation of pre-post tests, and U-test of the independent sample Mann-Whitney and the Wilcoxon code order test of the corresponding sample were carried out. The study results indicate that, compared with the control group, the experimental group showed communication capacity (Z=-3.361, p<.05), emotional intelligence (Z=-2.209, p<.05), self-esteem (Z=-1.633, p<.05), and interpersonal relationship (Z=-2.577, p<.05). After the communication training program, scores of communication capacity, emotional intelligence (EQ), self-esteem, and interpersonal competence of the experimental group increased significantly, and all hypotheses were supported. These results suggest that nurses' use of communication training experience in performing nursing work in a clinical setting would improve communication skills, emotional intelligence (EQ), self-esteem, and interpersonal skills and provide therapeutic communication and effective nursing, thereby enhancing patients' satisfaction and contributing to the improvement of nursing quality.