• Title, Summary, Keyword: 사전-사후 비교 평가

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선물 만기효과를 고려한 주가지수 선물의 헤지효율성

  • Yu, Il-Seong
    • The Korean Journal of Financial Studies
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    • v.5 no.1
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    • pp.165-190
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    • 1999
  • 본 논문에서는 KOSPI 200 주가지수 선물의 만기효과와 베이시스의 행태를 체계적으로 헤지 의사결정에 반영하기 위한 몇 가지 방법을 실증분석하였다. 우선 베이시스의 동태적 운동형태를 명시적으로 설정하지 않고 통계적인 방법을 통하여 헤지해제시점이 선물만기에 접근함에 따라 베이시스가 변동되는 양상을 반영한 헤지비율을 산출한다. 그 다음에는 헤지기간 전체에 걸친 베이시스의 운동형태를 명시적으로 설정하여 이에 입각한 헤지비율을 계산한다. 명시적인 베이시스의 운동형태는 비확률적인 과정과 확률적인 과정으로 다시 구분하고, 이 각각에 입각하여 최적헤지활동을 결정한다. 모든 헤지활동은 가장 최근까지의 정보를 이용하여 사전적으로 미래 헤지기간에 대한 의사결정을 하게 된다. 그러한 헤지활동의 사후적인 결과는 베이시스 행태를 별도로 고려하지 않고 단순선형회귀분석만을 이용하여 산출된 헤지성과와 비교되고, 변동성 감소 및 손실감소의 측면에서 각 접근방법이 가지는 특징 및 효율성을 평가한다. 실증 분석 결과, 헤지의 성과를 제고하기 위하여 선물의 만기효과와 베이시스의 행태변화를 체계적으로 반영한 세 가지의 시도 중 어느 것도 위험-수익의 2차원적인 비교에서 베이시스의 행태변화를 명시적으로 반영하지 않은 전통적 단순회귀분석을 압도하지 못하였다.

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거래비용 개념을 사용한 다부처연구개발사업의 추진체계 효율성 평가방법 연구

  • Bang, Soohyun;Jin, Young-Hyun;Park, Chang-dae;Kim, Hyeonoh
    • Proceedings of the Korea Technology Innovation Society Conference
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    • pp.209-228
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    • 2017
  • 사회의 글로벌화와 다원화로 인한 행정수요가 다양화 되고 정책문제가 복잡해지면서 이를 해결하기 위한 부처 간의 협력이 강조되고 있다. 이에 따라 다부처연구개발사업(이하 다부처사업)의 수요가 확대되고 있는 상황에서, 실무적 측면의 다부처사업 추진체계 설계 및 평가를 위한 가이드라인이 필요하다. 이를 위해, 본 연구에서는 연구개발사업의 목적 및 내용에 따른 추진체계 평가방법을 개발하는 것을 목적으로 하였다. 본 연구에서는 추진체계의 효율성 평가를 위해 거래비용 개념을 도입한 평가방법론을 제안하였다. 추진체계를 도입함으로써 절감할 수 있는 거래비용과 발생하는 조직비용의 값을 비교하여 추진체계의 효율성을 분석할 수 있는 평가방법을 설계하였고, Williamson과 Coase의 이론을 도입하여 각 비용을 측정할 수 있는 대리지표를 도출하고 설문을 설계하였다. 전문가를 대상으로 델파이 조사를 진행하여 도출된 대리지표의 기획 평가 관점에 따른 가중치를 설정하였다. 제안한 평가방법의 적용 가능성을 검증하고 보완사항을 도출하고자 현재 추진되고 있는 4개의 다부처사업에 대한 사례연구를 수행하였다. 본 연구는 다부처사업의 추진체계의 효율성을 사전적 및 사후적으로 평가할 수 있는 방법을 제시하였다는 점에서 의의가 있다.

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Development of A Parent Education Program to Improve Anger Control Ability of Parents of Elementary School Children (초등학생 부모의 분노조절능력 향상을 위한 부모교육 프로그램 개발)

  • Lee, Jae-Taek
    • The Journal of the Korea Contents Association
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    • v.16 no.5
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    • pp.668-685
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    • 2016
  • When the parents are unable to control anger properly, it can have a negative effect on their children. Therefore, parents need anger control ability very much. The purpose of this study is to develop a parent education program to improve anger control ability of parents of elementary school children so that it could help them to perform their parental role. The development of the program followed the procedure of analysis, design, development, execution, and assesment. In the analysis stage, previous studies were examined to explore in depth the ways to improve anger control ability. In the design stage, the goals were confirmed and learning objective for each session was defined, and according to this, the contents of education were selected. In the development stage, 8 sessions of education activities were formulated with 2 hours for each session and experts were consulted to examine the validity of the contents. In the execution stage, the operating method was proposed and the program was applied with a total of 8 sessions, 1 session for a week. In the final assessment stage, the effect of the program was assessed. Assessment of the program was carried out by both quantitative and qualitative methods. The quantitative method was verified by pre-and-post comparison, and analyzed by Wilcoxon Signed Ranks Test. For the qualitative method, questionnaire and interview were used. After the program was implemented, the pre-and-post comparison was carried out. The result shows there was significant improvement in both anger control ability of parents and parenting efficacy. Also, participants reported the program was very helpful for increasing parenting skills in many aspects. Lastly, the researcher of this study proposed the direction for further development of the program.

Curriculum Integration of Communication Simulation to Community Health Nursing Course for Nursing Students: Pilot Study (간호학생을 위한 의사소통 시뮬레이션교육프로그램의 지역사회간호학 교과적용을 위한 예비연구)

  • Ha, Yi-Kyung
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.4
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    • pp.2329-2337
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    • 2015
  • The purpose of this study was to develop a communication simulation and evaluate its applicability of curriculum of community health nursing for nursing students. This study used one- group pretest-posttest design and participants were 35 junior nursing students. Data was collected through self-reported questionnaires of communicative competence and satisfaction and analyzed using paired-t test and descriptive statistics. There was no change of overall mean score of communicative competence, though the simulation program related to communication of community health nurses was developed and the score of satisfaction after the simulation was 4.4 out of 5. In the categories of communicative competence, the score of role competence was increased after simulation(p<.001) but interpretive competence was decreased(p=.029). And others were not significant changes. As these results, the developed simulation program was applicable to community health nursing course, but further consideration is needed about strategies of simulation to increase communicative competence.

Effect of Sensory Integration Group Therapy on Sensory Processing, Peer Interaction and Task Performance of Children With Intellectual Disabilities (그룹감각통합치료가 지적장애아동의 감각처리와 또래상호작용, 과제수행에 미치는 영향)

  • Choi, Ji-Hyon;Kim, Hee;Lee, Jae-Shin;Yoo, Doo-Han
    • Korean Journal of Occupational Therapy
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    • v.26 no.4
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    • pp.111-125
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    • 2018
  • Objective : This study was designed to determine the effects of sensory integration group therapy with regard to the sensory processing, peer interactions, and task performance, and whether they continue. Methods : Twelve children aged 7 to 13 years enrolled in this study for 60 minutes per session, three times a week for 8 weeks. Sensory integration group therapy consisted of a total of 24 activities that included sensory processing, play skills, and interaction with peers. Short Sensory Profile was used to select subjects. In order to measure the outcome, we used the Short Sensory Profile, Penn Interactive Peer Play Scale and Canadian Occupational Performance Measure at pre, post, and follow-up evaluations. The results were analyzed by means of repeated measures analysis, and the pre-test, post-test, and follow-up tests were compared using the Wilcoxon matched-pair signed rank test. Results : After sensory integration group therapy, sensory processing, peer interaction, and task performance significantly improved(p<.05). In addition, we confirmed that the effects of treatment were maintained in the 4 weeks follow-up test. Conclusion : Sensory integration group therapy is an effective way of mediating effects not only by improving sensory processing skills, but also by providing imitation and training in groups for children in need of peer interaction and linking them to daily life.

The effect of applied electrical stimulation after props exercise on the development of balance of the elderly (소도구 운동 후 적용한 전기자극이 노인 균형발달에 미치는 영향)

  • Bae, sea-hyun;Lim, so-hee;Nah, seung-hyuk;Kim, kyung-yoon;An, so-young;Kim, yeon-hwa;Nah, hong-hee;O, min-kyu;Kim, min-seok
    • Proceedings of the Korea Contents Association Conference
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    • pp.367-368
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    • 2018
  • 본 연구의 목적은 노인 대상자에게 소도구 운동 후 적용한 전기치료가 노인의 균형 능력에 어떠한 영향을 미치는지 알아보고자 하였다. 34명의 노인을 대상으로 소도구 운동군(n=16), 소도구 운동과 전기자극군(n=18)으로 무작위로 설정하였다. 두 군은 1주일 5일 20분씩 5주 동안 각 군의 운동 프로그램을 진행하였다. 모든 대상자는 사전 사후에 균형 측정하였다. 연구 결과 군간 비교에는 유의한 차이를 보이지 않았지만, 군내 변화는 유의한 변화를 나타내었다. 전기자극이 노인의 균형능력을 높이는데 있어 영향을 줄 수 없다고 판단된다. 하지만 각 군의 평가 결과를 통해 소도구를 통한 운동은 노인의 균형능력 발달에 긍정적 영향을 미친다고 생각된다.

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The Effect of Make-up Education on Elderly Women's Self-esteem and Life Satisfaction (화장교육이 노인여성의 자긍심과 생활만족도에 미치는 영향)

  • Kim, Jung-Si;Min, Kyung-Jin
    • Proceedings of the KAIS Fall Conference
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    • pp.659-662
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    • 2011
  • 본 논문은 노인복지관을 방문하는 60세 이상의 노인여성을 대상으로 8주간의 화장교육을 실시하여 화장교육이 노인여성의 자긍심과 생활만족도에 미치는 영향을 알아보고자 하였다. 조사 대상자는 전체 80명 중 연령과 화장관심도를 근거로 실험군 40명, 대조군 40명으로 나누고 사전 조사 후, 실험군에게 8주간 화장교육을 실시하고, 효과 검증을 위한 사후 검사를 실시하여 실험군과 대조군의 자긍심과 생활만족도를 비교하였다. 교육 후 노인여성들의 화장교육에 대한 평가는 대체로 만족도가 높았으며 연구결과, 화장교육을 받은 실험군의 생활만족도는 유의하게 향상되었고(p<0.05), 자긍심은 교육 후 대조군이 낮아진 것에 비해 실험군은 변화가 거의 없는 것으로 나타나 교육의 효과로 인한 결과로 생각되며, 화장교육이 노인여성의 자긍심과 생활만족도에 유의한 영향을 미치는 것으로 확인되었다.

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Probabilistic Assessment of Hydrological Drought Using Hidden Markov Model in Han River Basin (은닉 마코프 모형을 이용한 한강유역 수문학적 가뭄의 확률론적 평가)

  • Park, Yei Jun;Yoo, Ji Young;Kwon, Hyun-Han;Kim, Tae-Woong
    • Journal of Korea Water Resources Association
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    • v.47 no.5
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    • pp.435-446
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    • 2014
  • Various drought indices developed from previous studies can not consider the inherent uncertainty of drought because they assess droughts using a pre-defined threshold. In this study, to consider inherent uncertainty embedded in monthly streamflow data, Hidden Markov Model (HMM) based drought index (HMDI) was proposed and then probabilistic assessment of hydrologic drought was performed using HMDI instead of using pre-defined threshold. Using monthly streamflow data (1966~2009) of Pyeongchang river and Upper Namhan river provided by Water Management Information System (WAMIS), applying the HMM after moving-averaging the data with 3, 6, 12 month windows, this study calculated the posterior probability of hidden state that becomes the HMDI. For verifying the method, this study compared the HMDI and Standardized Streamflow Index (SSI) which is one of drought indices using a pre-defined threshold. When using the SSI, only one value can be used as a criterion to determine the drought severity. However, the HMDI can classify the drought condition considering inherent uncertainty in observations and show the probability of each drought condition at a particular point in time. In addition, the comparison results based on actual drought events occurred near the basin indicated that the HMDI outperformed the SSI to represent the drought events.

The Development and Evaluation of a Nutrition Education Program for Preschoolers Focused on Family-linked Cooking Activity (가정연계 요리활동 중심의 유아 영양교육 프로그램 개발과 평가)

  • Han, Young Suk
    • The Journal of the Korea Contents Association
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    • v.20 no.6
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    • pp.521-530
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    • 2020
  • The purpose of this study was to develop and evaluate the nutrition education program for preschoolers focusing on family-linked cooking activities. After a pilot study and consultations of experts, a program(composed of twelve lessons) that was emphasized the right season food and cooking activities based on the social cognitive theory was developed. The lessons once-a-month and survey(pre and pro) were conducted to 29 preschoolers. The distribution of children was 72.5 months(mean age). The post-survey after the program was found to have significantly higher effects on nutrition knowledge and diet habits than the comparative group. Through this, the nutrition education program for preschoolers based on family-linked cooking activities developed in this study is effective in improving preschoolers' nutrition knowledge and diet habits, and provides grounds and implications for applying family-linked cooking activities to nutrition education.

The Effects of a School Zone Improvement Project on Crash Reduction Regarding Land Use Characteristics (토지이용 특성별 어린이 보호구역 개선사업의 교통사고 감소효과 분석)

  • Lee, Soo-Beom;Jung, Do-Young;Kim, Do-Gyeong
    • Journal of Korean Society of Transportation
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    • v.26 no.3
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    • pp.109-117
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    • 2008
  • The first phase of School Zone Improvement Project introduced to enhance the safety of school-routes were completed by 2007 and the second phase of the project will be continued from 2008 to 2012. Since a huge budget is required for the project, there is a need to evaluate how many child-related crashes were reduced through the project, prior to the implementation of the second phase. Therefore, this study aims to analyze the influence of the School Zone Improvement Project on reduction in child-related crashes with data collected from the database of the National Police Agency. This study employed a Before-and-After study with comparison group to assess how many crashes were reduced. The results showed that the number of child-related crashes were decreased by 10, which is about 39% reduction in crash frequencies. With respect to the land use characteristics of school zones, the number of reduced crashes in residential zone, commercial zone, and mixed zone were 2.41, 3.8, and 0.5, respectively. The results may provide a significant implication for the second phase of the project that there is a need to establish different plans for improvement project with respect to land use characteristics.