• Title/Summary/Keyword: T-test analysis

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The Study on Psychological Process Home Eniveronment and Family Value Orientations of Students (가정의 심리적 과정환경과 대학생의 가족가치관에 관한연구)

  • 고정자
    • Journal of Families and Better Life
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    • v.14 no.1
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    • pp.85-96
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    • 1996
  • The purpose of this study is to investigate the psychological process home environment that students perceived and theirs family value orientations. The subjects of this study were 848 students randomly selected from 6 niversities in Pusan area. The collected data was analysed by following methods : T-test Paired T-test One way Scheffe-test MANOVA and Pearson's correlation coefficients. The following conclusions are derived from the data analysis in this study: First The psychological process home environment that students perceived is achieved opened attracted and autonomous. And theirs family value orientations are somewhat moderns. Second There were significant differences according to religions sibling order SES mother's jobs in the family value orientations Third There were significant correlations beween the psychological process home environment that students perceived and their family value orientations.

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A Characteristic Study of Wake Distribution for Container Carrier (컨테이너선의 반류분포 특성 연구)

  • Park Sung-Woo;Park No-Joon;Yu Yong-Wan
    • Special Issue of the Society of Naval Architects of Korea
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    • 2005.06a
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    • pp.51-56
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    • 2005
  • In this paper, a correlation analysis of wake distribution between model test and CFD was described. CFD calculation was performed by 'WAVIS' which is utilized in hullform development. By using the correlation between model test and CFD, we have estimated M/T wake distribution To control M/T and CFD wake distribution effectively. we have developed the program that it is possible to export to TECPLOT and visualize wake distribution.

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Effects of the multimodal intervention program including animal-assisted therapy on depression and self-esteem among university students

  • Kil, Taeyoung
    • Journal of Animal Science and Technology
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    • v.63 no.6
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    • pp.1443-1452
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    • 2021
  • This study aimed to investigate the effects of the multimodal group intervention that combined animal-assisted therapy (AAT) and integrated play therapy (IPT) on depression and self-esteem in undergraduate university students. The subjects were 40 students attending animal-related and social welfare departments of universities located in a metropolitan city. The multimodal intervention program was conducted for eight sessions (twice a week, 60 min each) in the experimental group. Data analysis was conducted using the independent sample t-test, ANCOVA, and paired sample t-test for pre- and post-test. Therefore, the multimodal intervention program applying AAT and IPT showed positive effects on depression and self-esteem in university students. Based on these results, this study proposed the operation of multidisciplinary education and practical and policy utilization methods to reduce depression among university students and help improve their self-esteem.

A Study on the Developmental Trend of the Human body for the establishment of the Apparel Sizing System -on the high school boys and girls between age 16 and 18- (의복의 사이즈 체계 설정을 위한 신체 발달 경향에 대한 연구)

  • Kim Ku Ja;Lee Soon Won
    • Journal of the Korean Society of Clothing and Textiles
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    • v.15 no.1
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    • pp.48-60
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    • 1991
  • The purpose of this study is to analyze the pattern of human developmental growth with empirical anthropometric data for clothing construction. The sample was drawn randomly out of senior high school boys and girls in seoul urban area. The sample size was 424 boys and 301 girls between age 16 and 18. Dependent variables of this study were modified after extraction of common variables from raw data. 42 dependent variables were analyzed by the method of Duncan Test as Multiple Range Test among three age groups and T-Test between male and female of same age groups. The analysis of these data was carried with spss-x package by the computer installed in INHA University. The major findings can be summarized as follows. 1. In Duncan Test, female students between age 16 and 18 were not significantly different in the majority of dependent variables, but girth measurements and weight of 17 and 18 age groups were significantly different from that of 16 age groups. 2. In Duncan Test, male students were significantly different in the majority of the dependent variables, especially 33 variabls from 42 variables, among three age groups. 3. In T-Test, hip girth was only not significantly different between male and female and neck girth of the female students was only significantly larger than that of the male students.

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Analysis of Luminance Degradation characteristics of OLED using the Hotplate (핫플레이트를 이용한 OLED의 휘도열화특성 분석)

  • Kim, Yun-Cheol;Lee, Duek-Jung;Jang, Joong-Soon
    • Journal of Applied Reliability
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    • v.16 no.4
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    • pp.356-363
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    • 2016
  • Purpose: The purpose of this study is to propose efficiency of equipment testing the luminance degradation of OLED. Methods: The degradation model of Exponential model and Stretched exponential model is analyzed by goodness of fit test using calculated R-square. The degradation model having the higher R-square is finally selected. Scale parameter and Shape parameter using the selected degradation model is estimated. The activation energy and current density n using peck model among the accelerated model is estimated. the estimated parameters are analyzed by t-test. Results: The results of t-test show that the estimated parameters on chamber and hotplate are equal statistically. we can know the similarity of the luminance degradation rate and degradation pattern on chamber and hotplate. Conclusion: The result of the degradation test on chamber and hotplate is similar. when the accelerated degradation test on the panel of the OLED TV is performed, hotplate is requiring less samples, time and cost than chamber. so the accelerated degradation test on the panel of the OLED TV using the hoplate is efficient of time and cost.

Factors associated with health-related quality of life in Postmenopause over 10 Years Women Using National Health and Nutrition Examination Survey (국민건강영양조사를 활용한 폐경 여성의 삶의 질에 영향을 미치는 요인 ; 폐경 10년 이후 여성을 중심으로)

  • Jung, Sun-Kyung;Park, Keum-Ok;Lee, Yoon-Hee
    • Journal of the Korea Convergence Society
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    • v.13 no.4
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    • pp.553-560
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    • 2022
  • This study was conducted to identify the factors affecting the quality of life of women over 10 years after menopause using data from 2014 to 2019 of the National Health and Nutrition Examination Survey. The subjects were 6,330. The data were analyzed by frequency analysis, t-test and multiple regression analysis using SPSS 25. As a result of the study, the factors affecting the health-related quality of life of women 10 years after menopause were age(F=30.625, p<.001), educational level(F=20.106, p<.001), perceived health status(F=187.925, p<.001, activity limitation(t=201.051, p<.001), arthritis(t=91.131, p<.001), osteoporosis(t=4.709, p=.030), hand grip strength(t=22.151, p<.001), perceived stress(F=32.775, p<.001), and depression(t=20.117, p<.001). The factors accounted for 35.1%(F=110.393, p<.001). In order to improve the quality of life of postmenopausal women, it is necessary to continuously evaluate and improve the factors affecting the quality of life from the early menopause.

Image Segmentation based on Statistics of Sequential Frame Imagery of a Static Scene (정지장면의 연속 프레임 영상 간 통계에 기반한 영상분할)

  • Seo, Su-Young;Ko, In-Chul
    • Spatial Information Research
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    • v.18 no.3
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    • pp.73-83
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    • 2010
  • This study presents a method to segment an image, employing the statistics observed at each pixel location across sequential frame images. In the acquisition and analysis of spatial information, utilization of digital image processing technique has very important implications. Various image segmentation techniques have been presented to distinguish the area of digital images. In this study, based on the analysis of the spectroscopic characteristics of sequential frame images that had been previously researched, an image segmentation method was proposed by using the randomness occurring among a sequence of frame images for a same scene. First of all, we computed the mean and standard deviation values at each pixel and found reliable pixels to determine seed points using their standard deviation value. For segmenting an image into individual regions, we conducted region growing based on a T-test between reference and candidate sample sets. A comparative analysis was conducted to assure the performance of the proposed method with reference to a previous method. From a set of experimental results, it is confirmed that the proposed method using a sequence of frame images segments a scene better than a method using a single frame image.

Comparison of Univariate and Multivariate Gene Set Analysis in Acute Lymphoblastic Leukemia

  • Soheila, Khodakarim;Hamid, AlaviMajd;Farid, Zayeri;Mostafa, Rezaei-Tavirani;Nasrin, Dehghan-Nayeri;Syyed-Mohammad, Tabatabaee;Vahide, Tajalli
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.3
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    • pp.1629-1633
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    • 2013
  • Background: Gene set analysis (GSA) incorporates biological with statistical knowledge to identify gene sets which are differentially expressed that between two or more phenotypes. Materials and Methods: In this paper gene sets differentially expressed between acute lymphoblastic leukaemia (ALL) with BCR-ABL and those with no observed cytogenetic abnormalities were determined by GSA methods. The BCR-ABL is an abnormal gene found in some people with ALL. Results: The results of two GSAs showed that the Category test identified 30 gene sets differentially expressed between two phenotypes, while the Hotelling's $T^2$ could discover just 19 gene sets. On the other hand, assessment of common genes among significant gene sets showed that there were high agreement between the results of GSA and the findings of biologists. In addition, the performance of these methods was compared by simulated and ALL data. Conclusions: The results on simulated data indicated decrease in the type I error rate and increase the power in multivariate (Hotelling's $T^2$) test as increasing the correlation between gene pairs in contrast to the univariate (Category) test.

A Characteristic Study of Panic Disorder Patients Based on The Core Emotional Assessmental Questionnaire (CEAQ) (한의학 칠정(七情)에 기반을 둔 핵심감정평가척도를 이용한 공황장애 환자의 특성 연구)

  • You, So-Jung;Park, Jong-Min;Kang, Hyung-Won;Lyu, Yeoung-Su
    • Journal of Oriental Neuropsychiatry
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    • v.26 no.3
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    • pp.235-250
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    • 2015
  • Objectives: The purpose was to conduct a characteristic study on panic disorder patients through The Core Emotional Assessmental Questionnaire (CEAQ), followed by a correlation analysis with STAI, STAXI and BDI. Methods: We analyzed medical records of 62 patients who had visited ${\bigcirc}{\bigcirc}$ University hospital, oriental neuropsychiatric department and completed the The Core Emotional Assessmental Questionnaire (CEAQ), STAI, STAXI, and BDI. Finally, 20 patients who were diagnosed as Panic Disorder according to DSM-V (2013) were included in the study. Patient data was analyzed by Chi-Square test, frequency analysis, independent t-test, one-sample t-test, and correlation analysis using the SPSS (Statistical Package for the Social S 21.0 Version). Results: 1. Panic disorder patients experienced less Hui, and more Sa (思), Gong (恐), Kyeong (驚), and Bi (悲). 2. Female Panic disorder patients experienced more Hui (喜), as compared to male patients; whereas, male patients experienced more No (怒). 3. U (憂), Bi (悲), Sa (思), Gong (恐), and Kyeong (驚) emotions of Panic disorder patients were correlated to STAI-S, STAI-T, and BDI.

Comparison of the Improvement of Subjective Symptoms between Body Acupuncture Group & 8 Constitution Acupuncture Group (요추간판탈출증 환자의 체질침과 체침에 의한 자각적 통증감소 비교)

  • Chae, Sang-Jin;Kim, Nam-Ok;Park, Young-Chul;Son, Sung-Se
    • Journal of Acupuncture Research
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    • v.18 no.3
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    • pp.48-55
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    • 2001
  • Objective : The main cause of back pain & sciatica is HNP of L-spine. Recently, 8 Constitution Acupuncture is largely used for it, but the effects isn't announced. So we studied. The perceived pain diminishment is compared with Body acupuncture and 8 Constitution acupuncture. Methods : VAS(Visual analogue scale) was used for this research, with the pain indicator of 10 and 0 which represents a patient admission to a hospital and a status of no pain respectively. Two groups, consisting of Body acupuncture group with 17 persons and 8 Constitution acupuncture group with 12 persons, was randomly allocated for this research. SPSS(Statistical Program for Social Science) for window is used for a statistical analysis, and the independent T-test is performed to gauge the improvement of VAS, in which case, value of P below 0.05 is considered as useful. Results : The result of the VAS of comparison analysis between two groups after 10 days, shows that the improvement of subjective symptoms in Body acupuncture group is more effective than that in 8 Constitution acupuncture group. (independent T-test, P=0.009)

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