• Title/Summary/Keyword: T-test analysis

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Residents' Attitudes for the components of Home Environment (주거환경 구성요소에 대한 거주자들의 태도에 관한 연구)

  • 조성희;강혜경
    • Journal of the Korean housing association
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    • v.11 no.1
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    • pp.45-56
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    • 2000
  • This study is to find out the residents' attitudes for the components of home environment. This study proceeded with purposes 1) to define the components which are used to evaluate home environment and 2) to suggest the profile of home environment by analyzing the rate of significance and consideration for them. A survey was conducted by 511 housewives who live in Pusan, and analyzed by using frequency, percentage, mean, factor analysis, t-test, one-way ANOVA and Scheffe's test. The major findings are as follows: 1) The 16 elements were selected as the components which are used to evaluate home environment. 2) As for residents' attitudes, the profile of the rate of significance and consideration for the components showed generally high as over 3.0(mean) in all elements. 3) A comfortable environments, safety, housing atmosphere, traffic environments and educational environments were found out as elements that were very significantly recognized and considered in the profile. 4) As for residents' attitudes according to housing and household characteristics, there was a difference in a few elements.

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Educational Needs Related to Home Management Perceviced by Secondary Students (중.고등학교 학생의 가정관리 교육 내용에 대한 학습요구도와 관련변수에 관한 연구)

  • 이연숙
    • Journal of Korean Home Economics Education Association
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    • v.6 no.2
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    • pp.1-12
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    • 1994
  • The purpose of the study were to: (1) determine important home management concepts in the secondary home economics education curriculum,(2) identify the educational needs related to home management perceived by secondary school students, and the factors affecting it, (3) use the findings to make recommendations for developing home economics curriculum and teaching home economics in the secondary school. The questionnaires were distributed to the 1,029 secondary school students, lived in seoul, local cities, and rural area. The data were analyzed by using descriptive statistics, T-test one ay ANOVA with scheffe test, and multiple regression analysis. Forty home management concepts were selected based on the related literatures. Stress man-agement, leisure time activities, resource use, making money for adolescents, work simplication methods were the concepts which showed the highest level of educational needs perceived by the students. The educational needs were affected by sex, school level, residence area of the respondents, and other factors related to the perception about home economics such as preference, GPA, etc.

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Sleep Patterns and Early Adjustment in 1- to 3-year-old Children in Daycare (영유아의 수면양상과 어린이집 초기 적응)

  • Kim, Jinwook
    • Journal of Families and Better Life
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    • v.32 no.2
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    • pp.41-52
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    • 2014
  • The present study investigated the sleep patterns 1-to 3-year-old children and examined whether their sleep patterns would predict their early adjustment to daycare centers. The participants were 239 young children attending daycare centers in Seoul. The data on children's sleep patterns were collected by parent report. Children's adjustment to daycare was assessed by daycare providers' reports. The data were analyzed by means of Chi-square test, t-test, Pearson's correlation, ANOVA and discriminant analysis. The results were as follows: Children from dual-earner families had shorter nocturnal sleep duration than those from single-earner families. There was no significant relation between daytime sleep duration and sleep-onset time at night. It was found that children who go to bed earlier were more likely to get sufficient sleep without nocturnal wakefulness. Age and total sleep duration were seen to be significant variables when it came to discriminating between the adjustment versus maladjustment groups.

Extraction of bridge information based on the double-pass double-vehicle technique

  • Zhan, Y.;Au, F.T.K.;Yang, D.
    • Smart Structures and Systems
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    • v.25 no.6
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    • pp.679-691
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    • 2020
  • To identify the bridge information from the response of test vehicles passing on it (also known as the indirect approach) has aroused the interest of many researchers thanks to its economy, easy implementation and less disruption to traffic. The surface roughness of bridge remains an obstacle for such method as it contaminates the vehicle response severely and thereby renders many vehicle-response-based bridge identification methods ineffective. This study aims to eliminate such effect with the responses of two different test vehicles. The proposed method can estimate the surface profile of a bridge based on the acceleration data of the vehicles running on the bridge successively, and obtain the normalized contact point response, which proves to be relatively immune to surface roughness. The frequencies and mode shapes of bridge can be further extracted from the normalized contact point acceleration with spectral analysis and Hilbert transform. The effectiveness of the proposed method is verified numerically with a three-span continuous bridge. The influence of measurement noise is also examined.

Analysis of Data Rate for Multimedia Network VDSL System (멀티미디어 통신망 VDSL 시스템의 전송속도 분석)

  • Park, In-Jeong;Yang, Geun-Mo;O, Seung-Rok
    • Journal of the Institute of Electronics Engineers of Korea CI
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    • v.39 no.1
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    • pp.75-81
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    • 2002
  • In this paper, data rate of VDSL system was analyzed in noise and crosstalk environment. For this paper, Matlab tool was used to analyze the performance of VDSL system. Various "VDSL Test Loop" are used which is suggested by ANSI DSL Standard group T1E1.4. Many parameters, "Noise Model A", "Noise Model F", duplex method VDSL-998 which is suggested FDD plan by ANSI was used. The most of conditions for simulation are followed to the ANSI Standard "Spectrum management" Lots of data have been obtained according to the different conditions of the test loops. The result shows that the data rate of VDSL system is decreased due to the other DSL signals in the same cable bundle. And also there was more reduced data rate in case of Noise Model F than that of Noise Model A.

Difference of Customer Satisfaction Variables with the Student Characteristics (학생특성에 따른 고객만족변수의 차이)

  • Kim Yong-Ho
    • Management & Information Systems Review
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    • v.4
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    • pp.285-308
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    • 2000
  • Marketing is a topic of growing interest to nonprofit organizational managers(for example, hospitals, museums, charities and, churches, universities and colleges) as their organizations confront new, complex marketplace problems. These organization heads(specially in university and college) are laking their first, tentative steps toward marketing, often confusing it with its advertising and selling subfunctions. A genuine marketing response has been undertaken by a relatively small number of college in america. Their approach is best described as market-oriented institutional planning. In these approach, marketing is recognized as much more then mere promotion, and indeed, the issue of promotion cannot be settled in principles until more fundamental issues are resolved. According to market-oriented institutional planning customer satisfaction is one of the most important concept in university(college) marketing. Therefore, this study reviews literatures about university(college) marketing and general customer satisfaction. The literature study suggests some research hypotheses about customer satisfaction in college. Next, these hypotheses are tested empirically using ${\chi}^2-test$, multiple linear regression analysis and t-test. The research results worth explorative study on the customer satisfaction in the college.

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The Effect of Body Cathexis on the Clothing Behavior - among Male and Female College Students - (신체만족도에 따른 의복행동에 대한 연구 - 남녀 대학생을 중심으로 -)

  • 임경복
    • The Research Journal of the Costume Culture
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    • v.5 no.2
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    • pp.195-205
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    • 1997
  • The purpose of this study was to identify the effect of genderand body cathexis on clothing behavior (interest in clothing and clothing satisfaction/dissatisfaction). The questionnaire were administered to 395 college students living in Jechon. Data were analyzed by frequency, factor analysis, t-test, ANOVA, two-way ANOVA, Duncan's Multiple Range Test and Pearson's Correlation. The results of this study were as follows : 1) body-cathexis was higher in men than women. In general, students were more satisfied with upper body parts than lower body parts. 2) There was no relationship between interest in cloghing and body-cathexis. But woman showed more interest in clothing than man, therefore sex showed main effect. And there was interaction between sex and body-cathexis on interest in clothing. 3) Clothing satisfaction was devided into aesthetic/economical/practical factors. Among three satisfaction factors, body cathexis has the main effect in economic factor, and there was no interaction. But in aesthetic factor, gender and body-cathexis showed interaction and body-cathexis showed main effect.

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Effect of Gender Equality Career Education Program on Vocational Gender Egalitarianism and Career Identity of Middle School Students (양성평등 진로교육프로그램이 중학생의 직업관련 양성평등의식 및 진로정체감에 미치는 효과)

  • Sung, Mi-Kyung;Lee, Hee-Yeong
    • Journal of Fisheries and Marine Sciences Education
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    • v.19 no.1
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    • pp.121-128
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    • 2007
  • The purpose of this study was to test the effect of the gender equality career education program on vocational gender egalitarianism and career identity of middle school students. The subjects of this study were 72 middle school students in Busan. They were divided into two groups, the experimental group and the control group, with 36 students each. Korea Gender Egalitarianism Scale for Adolescents and Career Identity Scale of My Vocational Situation(MVS) were used to measure vocational gender egalitarianism and career identity. Collected data were analyzed using t-test. Results of analysis showed that the experimental group showed higher vocational gender egalitarianism and higher career identity than the control group. The implications of this study for career guidance were discussed and recommendations for future research were made.

A Study on the Digital DC Protection Relay through with Field Adoption Test in the DC Distribution System (직류급전시스템 시험적용 사례를 통한 디지털 직류 보호계전기에 관한 연구)

  • Cha, Kwang-Seok;Ko, In-Suk;An, Tae-Pung;Min, Byung-Hoon
    • Proceedings of the KSR Conference
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    • 2006.11b
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    • pp.606-615
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    • 2006
  • This study identifies the comparison of Technical specification and Characteristics of DC Protection Relay(ETCPU200) used in DC Distribution System in Korea. ETCPU200 has completed Field Test and approved its capability by finding out causes of recent operations through lately developed digital DC protection relay in parallel operation at Maebong-Substation, Nakseongdae-Substation, Euljirosaga-Substation, Jegi-Substation and Chongryangri T/P area. It also examines additional features for efficient System Analysis and Operations.

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A Study on the Effect of Marital Satisfaction to the degree of Marital Commitment (주관적 비교수준에 의한 결혼만족도가 관계몰입에 미치는 영향)

  • 어은주;유영주
    • Journal of Families and Better Life
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    • v.10 no.2
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    • pp.231-243
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    • 1992
  • The purposed of this study is to examine the general tendency of the degree of marital commitment and its relationship with marital satisfaction by comparison level , and to find out the factors which affect the marital commitment. For these purposed, a questionnaire was consisted of 35 items, of which 22 questions are for marital satisfaction and 13 questions for the degree of marital commitment(3 of instrumental commitment, 4 for moral commitment , 6 for affective commitment) The analytical methods adopted in this study were frequency, t-test, oneway-ANOVA, Duncan test, and Multiple Regression Analysis. The major findings of this study are follows; 1)The degree of marital commitment is high as a whole. 2)Marital satisfaction affects on the degree of marital commitment significantly. The more Marital satisfaction, the more the degree of marital commitment. 3) The degree of marital commitment is affected by the variables such as age the number of children. husband' job, wives' employment, and marriage type. 4) The factors which ha a especially strong relationships with marital commitment are marital satisfaction husbands' job, and the number of children.

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