• Journal of the Korean Statistical Society
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• 제35권3호
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• pp.225-238
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• 2006

This paper considers noninformative priors for the scale parameter of exponential distribution when the data are collected in step stress accelerated life tests. We find the Jeffreys' and reference priors for this model and show that the reference prior satisfies first order matching criterion. Also, we show that there exists no second order matching prior in this problem. Some simulation results are given and we perform Bayesian analysis for proposed priors using some data.

• 디지털융복합연구
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• 제14권10호
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• pp.327-337
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• 2016

본 연구는 부모방임이 청소년의 학교생활적응에 미치는 영향을 살펴보고 그 과정에서 자아정체성과 삶의 만족도의 매개효과를 검증하는데 그 목적이 있다. 이를 위해 한국아동 청소년패널 조사의 5차년도(2014) 자료를 활용하였고, 본 연구에 적합한 2,035명의 중학생을 대상으로 변수간의 위계분석과 경로분석을 실시하였다. 주요 분석 결과를 살펴보면. 첫째, 부모방임은 청소년의 자아정체성과 삶의 만족도 및 학교생활적응에 모두 부정적인 영향을 미치는 것으로 나타났다. 둘째, 청소년의 자아정체성과 삶의 만족도는 학교생활적응에 긍정적인 영향을 미치는 것으로 확인되었다. 셋째, 자아정체성과 삶의 만족도는 부모방임과 청소년의 학교생활적응 간에 부분매개 역할을 하는 것으로 확인되었다. 이러한 결과를 바탕으로 청소년의 자아정체성과 삶의 만족도, 학교생활적응을 향상시킬 수 있는 프로그램 개발의 필요성이 제시되었다.

• 한국지역사회생활과학회지
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• 제15권4호
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• pp.113-125
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• 2004

The objective of this study was to analyze the evaluation of the rural resident's on their community at view of community life satisfaction. The specific purposes of this study were to identify the degrees of community life satisfaction, consciousness of rural community according to the individual variables. The data were gathered from 1,870 rural residents by the structured interview in the 187 communities sampled by multi-staged cluster stratified sampling method in November, 2003. The major findings of this study were as follows; first, the degree of the rural residents'community life satisfaction was generally low, especially the rural residents were dissatisfied with the opportunities of leisure and education environment in their communities, and by half were satisfied with housing environment. Second, as consciousness of rural community, the degree of rural resident's joining at community meeting was high, and openness to the outside residents' was high. third, the most important factor for consciousness of rural community were community organization, good neighbor. As result of this study, the following conclusion and recommend can be drawn. First, the level of rural resident's community life satisfaction is overall low. Especially it is needed policy efforts and priority investment for advancing satisfaction on leisure and education environment in rural community. Second, to foster rural resident's community consciousness, community orgaruzatlon Is first of all supported and activated. Through viability of these community organization, rural resident's participation in community welfare will be enhanced

• 대한가정학회지
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• 제35권2호
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• pp.33-47
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• 1997

The purpose of the study is to examine the differences between rural and urban in the factors and the level of stress in adolescent, inner control and communication with parents. Also, It is to research the influence of environmental variables, inner control and communication with parents on adolescent's stress in sides of rural and urban. Therefore, I provide needed data in instructing students. For the data set, academic high school students in second grade in a town for rural and Su-Seung gu, Dal-Sugu, chung gu in Dae-gu for urban were chosen. The data were analyzed with the frequency, percentage, factor analysis Mean, S.D, reliability, t-test, regression in use of Spss PC+ Program. The main results are as follow. First, for rural students, stress level is displayed studies, future0affair, life-attitude, companions, self-assurance and home life in order by lower sphere. For urban students, it is displayed future-affair, studies, life-attitude, companions, self-assurance and home life in order by lower shpere. In case of rural "I don't know effective study method" is highly displayed by factors. In case of urban. "I am tired of a competitive life" is highly displayed. The mean of stress level is 3.22 for rural and 3.07 for urban. The differences between rural and urban are showed in self-assurance, studies and companions. Finally when we see the stress generally the stress level is higher in rural high school students than in urban high school students. Second, rural students are lower displayed than urban students in inner control and communication with parents. There is no difference urban students in inner control and communication with parents. There is no difference in communication with a mother. third, influential variables on stress level are inner control, communication with parents, satisfaction with companions and school life as environmental variables in sides of rural and urban. Physical condition is added for rural and sex for urban Finally we get the result that stress level is high in low inner control, poor communication with parents, bad companions and unsatisfied school life for both rural and urban. Bad physical condition for rural and female for urban are added.

• 수산해양교육연구
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• 제24권6호
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• pp.977-988
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• 2012

The purpose of this study was to help teachers increase the level of student's school life satisfaction by comparing between the practical data of a group which have an accordant perception for class teacher's discipline style perceived by between teacher him/herself and student with another group which have a discordant perception for class teacher's discipline style perceived by between teacher him/herself and student. For this study, 1460 second grade special high school students in Pusan were selected. And 1273 students and 56 teachers' questionnaires were used for analysis, while 5 questionnaires went uncompleted. T-test and Multiple Regression Analysis were used for compiling statistics of collected data. The results of this study are as follows: First, perceptions about the teacher's discipline style perceived by between teacher him/herself and student were different. Second, the levels of student's school life satisfactions were different by two group. A group which has an accordant perception for class teacher's discipline style perceived by teacher him/herself and student shows the high level of school life satisfaction than B group which has an discordant perception. Last, class teacher's discipline style which affects the level of student's school life satisfaction was different by the two group. These results suggest that to increase the level of student's school life satisfaction, class teachers have to a mutual understanding first, and then approach their students with different discipline style by the level of their interactive relationship with their students.

• 수산해양교육연구
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• 제22권1호
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• pp.123-140
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• 2010

The Purpose of this study was to examine the effects of self-growth group counseling on self-esteem and life satisfaction of university students. For this study the following hypotheses were established. First, does the self-growth group counseling enhance significantly the participants' self-esteem? Second, does the self-growth group counseling enhance significantly the participants's life satisfaction? Those who participated in this study were 22 University students which are in D University in Busan. Ten participants were assigned in the experimental group and twelve in the control group. The experimental group participated in the self-growth group counseling one session a week for 12 consecutive weeks held by counseling center for D University students. The instruments used in this study were Self-Esteem Scale and life satisfaction Scale. The data was analysed by ANCOVA. The average, standard deviation, and estimated marginal means were calculated and the differences between the pre and post-tests calculated, processed by SPSS 12.0. The major findings of this study can be summarized as follows: First, the self-growth group counseling is effective to enhance significantly the level of self-esteem of University students. Second, the self-growth group counseling is also effective to enhance the level of life satisfaction of University students. Based on the results, the self-growth group counseling was suggested as a means to help University students enhance their self-esteem and life satisfaction.

• 대한가정학회지
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• 제49권1호
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• pp.107-120
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• 2011

This study is focused on the levels of life satisfaction influenced by the socio-demographic characteristics, personal activities, personal support and psychological characteristics. We surveyed 504 future elderly people(age between 50 to 64) and the elderly(over 65). The results are as follows; First, future elderly people are more satisfied with their life than the elderly. Second, life satisfaction of the future elderly is rarely influenced by the social demographic characteristics. Whereas, life satisfaction of the elderly is more influenced by the socio-demographic characteristics rather than the personal activities. Supports from neighbors and psychological characteristics are more satisfying their lives. Thus, we should come up with new programs providing opportunities to attend various social activities to maximize their life satisfaction of the future elderly. For the elderly, we need systems to build social network for supports from neighbors and to provide more job opportunities and educating programs.

• 한국안전학회지
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• 제24권5호
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• pp.48-56
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• 2009

This paper presents the procedure for the optimal design of a PSC-I girder bridge considering life cycle cost (LCC). The load carrying capacity curves for the concrete deck, PSC-I girder and $\pi$-type pier were derived and used for the estimate of service lives. Total life cycle cost for the service life was calculated as sum of initial cost, damage cost, maintenance cost, repair and rehabilitation cost, user cost, and disposal cost. The advanced First Order Second Moment method was used to estimate the damage cost. The optimization method was applied to the design of PSC-I girder bridge. The objective function was set to the annual cost, which is defined by dividing the total life cycle cost by the service life, and constraints were formulated on the basis of Korean Standards. The optimal design was performed for various service lives and the effects of design factors were investigated.

• 가정과삶의질연구
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• 제21권3호
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• pp.87-99
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• 2003

The purpose of this study was to examine how the life styles of Korean people are influenced by the value systems of different generations. We analyzed the survey data of the 869 Korean participants aged from 20 to 69. The following results were obtained. First, differences exist among generations in various values such as collectivism, authoritarianism, environmental control, individualism , universalism, egalitarianism, and environmental accommodation. Especially, the older generation shows high scores in collectivism, authoritarianism and environmental accommodation, among traditional values. On the other hand, younger generation scored a higher level in individualism and egalitarianism. Second, there is a generation gap in the life style, as shown in family activities, household work, consumption activities, and leisure activities. In family activities, leisure activities and consumption activities, the younger generations gained higher scores than the older generations. Third, Korean people's value systems affect their life styles. Also, it was found that the interaction between the genera(ion and the value systems affects the life styles of Korean people.

• 수산해양교육연구
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• 제23권3호
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• pp.388-399
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• 2011

The purpose of this study was to analyze the relationship between leadership life skills, social competence and self-regulation ability of scientifically gifted and regular middle school students. The subjects for this study were 351 middle school students in Busan. The results of this study were as follows: First, scientifically gifted students had higher significant differences in leadership life skills, social competence and self-regulation ability than regular middle school students. Second, there were significant positive correlations between leadership life skills, social competence and self-regulation ability. Third, social competence and self-regulation ability affected leadership life skills. This suggests that social competence and self-regulation ability are important variables to develop and improve leadership life skills of gifted students.