• Communications for Statistical Applications and Methods
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• 제16권1호
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• pp.41-50
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• 2009

1990년대 들어 정보통신산업을 중심으로 기술혁신이 급속히 진행되면서 고정가중법에 의한 실질 GDP 통계의 현실반영도가 저하됨에 따라 연쇄가중법의 도입 필요성이 대두되고 있다. 연쇄가중법의 도입은 전기비 성장률의 작성 기준이 되는 계절조정계열산출에도 영향을 미치게 되며 특히 연간법, 특정분기법, 전년 동분기법 등 분기 연환지수의 연결방식에 따라 시계열의 계절패턴이 달라질 수 있어 이를 적절히 반영할 수 있는 계절조정방법을 필요로 한다. 또한 연쇄계절조정계열은 연쇄가중법 적용 후 사후적으로 계절조정을 실시하는지 아니면 계절조정계열을 대상으로 연쇄가중법을 적용하는지 등 적용순서에 따라 산출 결과에 차이가 발생할 수 있다. 국민소득통계를 이용한 시산결과 우리나라에서는 연간법에 의해 분기 연쇄지수를 산출하고 사후적으로 계절조정을 실시하는 것이 가장 바람직한 것으로 평가되었다.

• 한국심리학회지 : 문화 및 사회문제
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• 제22권3호
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• pp.387-410
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• 2016

본 연구에서는 위험과 안전에 대해 실존심리학적 관점의 고찰을 실시하였다. 실존주의 철학과 실존주의 심리학적 논의들을 통해서 실존적 과제로서 '위험'을 파악하였으며, 실존적 욕구로서 '안전'을 규정하였다. 나아가 실존적 과제의 미해결성과 실존적 욕구의 비충족성으로 인해 발생되는 실존적 불안으로서 '주관적 위험'을 파악할 수 있음을 제시하였다. 또한, 실존적 불안으로서 '주관적 위험'은 '위험'과 '안전'에 대한 실존적 직면과 완성으로 나아가게 하는 나침판으로서 역할을 하고 있음과 발현된 현상적 상태를 통해 문제적 고착 상태에 놓여 있음을 파악할 수 있는 신호로서의 기능을 수행하고 있음을 밝혔다. 그리고 실존적 불안으로서 '주관적 위험'의 문제적 고착 양상은 발현된 현상에 대칭적인 특성과 상태로 인식될 수 있는 경험과 정보를 공급하는 방법을 통해서 조절할 수 있음을 제안하였다. 실존심리학적 관점으로 '위험'과 '안전'을 파악하려는 시도는 세월호 참사를 비롯한 한국 사회의 인재형 사고에 대해 보다 근원적인 원인 분석과 대책을 마련해 줄 수 있을 것이라고 생각한다. 이를 통해 향후 위험 감소와 안전 향상을 위한 심리학적인 접근을 보다 다양한 방면에서 효과적으로 적용할 수 있는 시사점을 제시해 줄 수 있을 것이다. 또한, 본 연구를 통해 제시된 여러 견해들을 종합해서 다양한 실존적 주제들의 상태를 조절하는 방법[주제상태조절이론(Theme Condition Adjustment Theory: TCAT)]에 대한 이론적 토대를 마련할 수 있을 것이라고 기대한다.

• 한국학교보건학회지
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• 제26권1호
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• pp.13-25
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• 2013

Purpose: This study is a descriptive correlation study to identify how factors such as motivation to learn, school adaptation, self-control, and self-esteem influence the degree of Internet game addiction and to provide basic data for nursing interventions for male middle school students. Methods: The subjects of this study were 418 male students in lst, 2nd and 3rd grade at three middle schools located in Ulsan. Data were collected from May 1, 2011 to May 31, 2011 and analyzed through descriptive statistical methods, such as the t-test, ANOVA, Sheffe's test, Pearson correlation coefficient and multiple regression analysis, via SPSS 18.0 program. The study's structured questionnaire was composed of 25 items of 'the Motivation to Learn Scale', 41 items of 'the School Adaptation Scale', 20 items of 'the Self-Control Scale', 10 items of 'the Self-esteem Scale', and 20 items of 'the Internet Game Addiction Scale'. Results: 163 students (39.0%) belonged to the non-addiction group while 255 students (61.0%) fell into the addiction risk group. The addiction risk group showed a higher degree of addiction than ones in the non-addiction group. The addiction risk group's average scores for motivation to learn, school adaptation, self-control, and self-esteem were lower than those of the non-addiction group. The statistically significant factors (p<.05) that increase the chance of addiction were grade, family atmosphere, self-control, trading of online game items, and the amount of time playing online games. Conclusion: On the basis of the findings of this study, it is suggested that; qualitative research on the routes of addiction be conducted to find out ways to prevent and nurse addicted students; considering the fact that the average age of Internet users is getting lower and lower, a study targeting primary school students be implemented; since the influences of the variables covered in this study turned out to be relatively low, other factors, especially environmental factors, should also be investigated.

• International Journal of Advanced Culture Technology
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• 제6권2호
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• pp.30-35
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• 2018

In contemporary society, neglected families increase adolescents' maladjustment behaviors, causing academic problems, psychological and emotional problems, and showing flight behavior. By identifying the nature of the protective factor against the dangerous environment of a neglected family and increasing the protection factor for the children in a dangerous environment, it is necessary to create the environment so that the young can grow up positively rather than adversely. The purpose of this study is to identify the characteristics of adolescents who are psychologically adaptive at the level of general family children among the adolescents who are in a dangerous environment. The results showed that self - esteem, ego - resilience, ego - identity, and community variables had a significant effect on discriminating adolescents who showed high psychological adjustment from risk factors of neglect while controlling other factors. SPSS 20.0 was used to analyze the data.

• 아동학회지
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• 제22권3호
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• pp.123-136
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• 2001

The Multigroup Ethnic Identity Measure(Phinney, 1992) was administered to 179 Korean-Chinese mothers and their 8th and 9th grade children in the Yanbian region of China. Children also completed the Depression, Self-Esteem, and Social Competence scales. Findings were that while there was no difference between mothers and their adolescent children in Integration and Marginalization, more Separation in mothers and more Assimilation in adolescents were found. Korean-Chinese adolescents who belonged to the Integration type showed higher self-esteem and social competence than those of the marginalized type. Children's self-esteem and social competence were highest when both mother and child were in the Integration type. These results support the notion that Integration reflects the most adaptive, while Marginalization is the most at-risk attitude to acculturation.

• 한국병원경영학회지
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• 제19권4호
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• pp.21-33
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• 2014

This study was conducted to propose an insight into the appropriateness of hospital length of stay(LOS) by developing a severity-adjusted LOS model for patients with pneumonia, organism unspecified. The pneumonia risk-adjustment model developed in this paper is based upon the 2006-2010 the Korean National Hospital Discharge in-depth Injury Survey. Decision tree analysis revealed that age, admission type, insurance type, and the presence of additional disorders(pleural effusion, respiratory failure, sepsis, congestive heart failure etc.) were major factors affecting the severity-adjusted model using the Clinical Classifications Software(CCS). Also there was a difference in LOS among the regional hospitals, especially the hospital LOS has not been efficiently managed in Gyeongsangbuk-do, Jeollanam-do, Jeollabuk-do, Daejeon, and Busan. To appropriately manage hospital LOS, reliable statistical information about severity-adjusted LOS should be generated on a national level to make sure that hospitals voluntarily reduce excessive LOS and manage main causes of delayed discharge.

• Journal of the Korean Data and Information Science Society
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• 제26권1호
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• pp.217-227
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• 2015

In observational study, handling confounders is a primary issue in measuring treatment effect of interest. Historically, a regression with covariate adjustment (covariate-adjusted regression) has been the typical approach to estimate treatment effect incorporating potential confounders into model. However, ever since the introduction of the propensity score, covariate-adjusted regression has been gradually replaced in medical literatures with various balancing methods based on propensity score. On the other hand, there is only a paucity of researches assessing propensity score methods compared with the covariate-adjusted regression. This paper examined the performance of propensity score methods in estimating risk difference and compare their performance with the covariate-adjusted regression by a Monte Carlo study. The study demonstrated in general the covariate-adjusted regression with variable selection procedure outperformed propensity-score-based methods in terms both of bias and MSE, suggesting that the classical regression method needs to be considered, rather than the propensity score methods, if a performance is a primary concern.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2016년도 춘계 학술논문 발표대회
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• pp.95-96
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• 2016

The floor slip test method using O-Y·PSM was developed based on the risk assessment and sense of slip by the users implementing actions such as changing walking direction on a floor. This test method is regulated under the Korea Industrial Standard KS M 3510, and in the Korea Industrial Standard KS F 3230, the article of KS M 3510 is cited. Yet, in the standard, the surface condition of test or slip adjustment method is merely mentioned or difficult to be found, and thus it creates confusion in floor slip test using O-Y·PSM. Therefore, this study is to provide the useful data to revise the relative standard through the standardization study including various surface conditions of sample and slip adjustment method used in floor slip test method using O-Y·PSM.

• The Journal of Asian Finance, Economics and Business
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• 제7권9호
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• pp.125-134
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• 2020

This study examines the nominal price anomaly in the Vietnamese stock market, that is, whether stocks with low nominal price outperform stocks with high nominal price. Using a sample of all 351 companies listed on the Ho Chi Minh Stock Exchange (HOSE) from June 2009 to March 2018, we confirm our hypothesis and document that cheaper stocks yield higher subsequent abnormal returns. The results are robust after controlling for various stock characteristics that have been documented to be value-relevant in prior literature, including firm size, book-to-market ratio, intermediate-term momentum, short-term reversal, skewness, market risk, idiosyncratic risk, illiquidity and extreme daily returns, using both the portfolio analysis and the Fama-MacBeth cross-sectional regression. The negative effect persists in the long term (i.e., after up to 12 months), implying a slow adjustment of stock prices to their intrinsic value. Further analysis show that the observed nominal price anomaly is mainly driven by mispricing but not a latent risk factor proxied by stock price, thus the observed anomaly reflects a mispricing but not a fundamental risk. The study highlights the irrational behaviour of investors and market inefficiency in the Vietnamese stock market and provides important implication for investors in the market.

• 보험의학회지
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• 제26권
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• pp.31-39
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• 2007

Background and main issue: In the Korean insurance market, an outstanding issue is the decrease of margin of risk ratio. This affects the solvency and profitability of insurance companies. Insurance medicine, which has been developed in Western countries, is so-called medical risk selection or medical underwriting. Medical risk selection is based on clinical follow-up study and mortality analysis methodology. Unfortunately, there have been few clinical follow-up studies, and no intercompany disease analysis system is available in the Korean insurance market. In practice, we use underwriting guidelines, which were developed by some global reinsurance companies. However, these guidelines were developed under clinical follow-up studies performed abroad. So, we cannot rule out underestimation of excess mortality factors such as mortality ratio, excess death rate, and life expectancy. It is necessary to perform medical assessment in claims administration. Comparing the insured's statement by medical records with products' benefit according to this procedure, we can make sound claim decisions and participate in the role of sound underwriting. We can call this scientific procedure as the verification of medical claims review. Another area of medical claims review is medical counsel for claims staff. Result: There is another insurance medicine in addition to medical risk selection. Independent medical assessment by medical records of insured is medical claims review. Medical claims review is composed of verification and counsel.