• Journal of Information Technology Applications and Management
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• 제25권1호
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• pp.67-85
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• 2018

We propose a noise reduced risk aversion index for measuring risk aversion through a laboratory experiment to overcome disadvantages of the multiple pricing list format developed by Holt and Laury (2002). We use randomized multiple list choices with coarser classification and reward weighting, supplement the rank of risk aversion with extra individual characteristics of risk attitude, and construct an index of risk aversion by standardizing the risk aversion ranking with quantile normalization. Our method reduces multiple switching problems that noisy decision makers mistakenly commit in experimental approaches, so that it is free of the framing effect which severely occurred in the HL. Furthermore, the index doesn't utilize any specific utility function or probability weighting, which allows researcher to hold the independence axiom. Since our noise reduced index of risk aversion has many good traits, it is widely used and applied to reveal fundamental characteristics of risk-related behaviors in economics and finance regardless of experimental environment.

• 대한가정학회지
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• 제41권12호
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• pp.53-68
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• 2003

The purpose of this study was to develop lesson plans and teaching materials applying practical reasoning instruction for the 7th home economics curriculum content, and to test the effect of practical reasoning instruction on morality of middle school students. This study is a quasi-experimental research with a pretest-posttest design. Practical reasoning instruction for experimental group and traditionally lecture oriented instruction for comparison group were input, and tested the statistical differences between two groups before and after the treatment. The subjects for this study were 8th grade students of a middle school located in Kwangju city. Two classes of 76 students homogeneous in characteristics and academic record for each experimental and comparison group were assigned. Instrument used for this study was a revised moral indicator, that was developed by KEDI(2001). Spss/win for 10.0 statistics program was used for analysis of data. ANCOVA was done for testing statistical difference between pretest and posttest of experiment group and comparison group. Result of study which showed statistically significant difference between groups were：1. Virtue of "responsibility for words and deeds"(from 3.22 to 3.61 for experimental group and from 3.27 to 3.26 for comparison group) in domain of responsibility and cooperation, and virtue of "punctuality"(from 3.59 to 3.76 for experimental group and from 3.41 to 3.28 for comparison group) in domain of trustworthiness, 2. Virtue of "conversation etiquette"(from 3.47 to 3.67 for experimental group and from 3.28 to 3.31 for comparison group) in domain of caring for others, 3. Virtue of "forgiveness other′s mistakes"(from 3.32 to 3.65 for experimental group and from 3.33 to 3.25 for comparison group) in domain of kindness, concession, forgiveness, and virtue of "volunteering activity"(from 2.89 to 3.71 for experimental group and from 3.36 to 3.45 for comparison group) in domain of compassion and service, 4. Virtue of "equip the convenient facility for handicapped"(from 4.19 to 4.29 for experimental group and from 4.17 to 3.91 for comparison group) in domain of equality and human rights, virtue of "recovering selfness for own community"(from 2.34 to 2.79 for experimental group and from 2.14 to 2.29 for comparison group), virtue of "opposing way of accomplishing purpose by an means"(from 3.27 to 3.31 for experimental group and from 3.47 to 3.05 for comparison group), virtue of "opposing election of considering acquaintance"(from 3.35 to 3.56 for experimental group and from 3.12 to 3.14 for comparison group) in domain of fairness, and virtue of "eradication of military force or violence among countries"(from 3.49 to 3.57 for experimental group and from 3.38 to 3.05 for comparison group) in domain of love for humanity. The morality of experimental group was improved more than that of comparison group in all of above items. From the results of this study, following conclusion was drawn. Practical reasoning instruction in home economics is effective in raising students′ virtue and value of responsibility in words and deeds, trustworthiness in punctuality, courtesy of not interrupting conversation, forgiveness of other′s mistakes, volunteering activity, equity for handicapped, fairness opposing selfness for own community, fairness opposing way of accomplishing purpose by all means, fairness opposing election of considering acquaintance, and love for humanity opposing war.

• Journal of Nutrition and Health
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• 제2권1호
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• pp.29-34
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• 1969

The nutrients such as protein, calcium, iron and all three of them, either by natural or chemical substances were added to the recipes of yeast breads. Acceptability test was carried for the each formulated bread before selecting eight experimental diets. Sixty albino rats were separated into ten dietary groups including eight enriched breads and two control diets of plain breads from the market, which were used as the carbohydrate sources of the each basal diet. Experimental regime was seven weeks. The growth rate, hematology, total serum protein and organ weights we compared. Generally animals on the enriched bread showed the better growth rate than the rats fed control diet. Diet H enriched protein, iron and calcium by natural foods, brought up the highest weight gain among all of the rats. Hemoglobin concentrations of the rats on the diet H and G (enriched with three nutrients by chemicals) were 14.3 and 14.2 gram % comparing with other two control groups (12.9 and 13.1 gram%). Rats on diet K (fed nothing but diet H enriched bread) showed the significantly higher growth rate, total serum protein and hemoglobin level than these on the diet L (fed only plain bread from the market).

• 한국생활과학회지
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• 제20권3호
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• pp.545-560
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• 2011

The purpose of this study was to examine the effects of traditional fairy tales on the basic understanding of economics and numbers for 4 year old preschoolers. The subjects were 20 children at one education center located in Seoul: Among them, 10 were in the experimental group and 10 were in the control group, based on random selection. The program for economic education was conducted for eight weeks; two times each week for the experimental group, while a general curriculum was conducted with several traditional fairy tale books related to economic education were given to the control group. The preschoolers' basic understanding of economics and numbers was examined using the scales of Park(2008) and Choi(2003). Collected data was analyzed by t-test and ANCOVA using SPSS 17.0 program. The results were as follows: there were significant differences in the understanding of economics and numbers according to economic education based on traditional fairy tales respectively. In conclusion, it is necessary to conduct a scientific study in order to develop an economic education program. Also, various activities were discussed to use the economic program for preschoolers.

• 한국가정과교육학회지
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• 제16권2호
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• pp.27-36
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• 2004

본 연구는 문제중심학습 가정과 수업을 가족관계 영역에 적용했을 때 학생들의 자아효능감에 미치는 효과와 이에 대한 학생들의 평가를 알아보기 위한 것으로 결과를 요약하면 다음과 같다. 첫째 문제중심학습을 적용한 가정과 수업은 강의식 수업을 한 학생들보다 자아효능감 및 자아효능감의 하위요인인 자신감, 자기조절효능감, 과제난이도 선호에서 효과가 나타났다 둘째, 문제중심학습 가정과 수업 후 학생들의 평가를 통하여 대체로 문제중심학습 가정과 수업을 통해 협동심을 기를 수 있게 되었고, 가정 과목의 재미를 느꼈으며, 자기 스스로 하는 수업이었다 둥의 긍정적이고 적극적인 반응과 수업 후 가족관계 부분을 일상생활에서 직접 활용할 수 있어서 우리가 일반 생활에서도 쉽게 접할 수 있다는 긍정적인 반응을 얻을 수 있었다. 이러한 연구 결과를 정리해 보면 학생들은 가정과 수업을 할 때 교사위주의 강의식 수업이 아닌 문제중심학습 수업을 할 매 더 적극적이고 긍정적으로 참여하며, 이로 인해 자신감, 자기조절효능감, 과제난이도 선호 등 자아효능감이 향상된다는 것을 알 수 있다. 그러므로 문제중심학습을 적용한 가정과 수업은 학생들의 자아효능감 향상에 효과적이며 이를 통해 강의식 수업에서 벗어난 학생중심의 수업과 실제적 문제중심접근, 자율학습과 협동학습을 기를 수 있기 때문에 가정과 수업의 질을 향상시키는데 기여할 수 있는 평가방법이라고 할 수 있다.

• 대한가정학회지
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• 제24권2호
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• pp.51-62
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• 1986

This study was designed to observe the effects of nutritional supplementation of general Korean diet on protein metabolism in growing rats. Seventy weanling Sprague-Dawely male rats weighing 76.8$\pm$1.45g were blocked into ten groups and fed ten different experimental diets for eight weeks. The rats in cereal-vegetable group were fed ad libitum for all the experimental period and those in other experimental groups were pairfed following the feed intake of rats in C-V gp. Control group was given 72% cornstarch-29% casein diet : C-V gp was fed cerealvegetable diet composed of rice, barley, soybean and Chinese cabbage : the other eight groups were fed C-V diets supplemented with casein, vitamin B\sub 2\ calcium, vitamin A, vitamin B\sub 2\ and vitamin A, vitamin A and calcium, vitamin B\sub 2\ and calcium, vitamin A and vitamin B\sub 2\ and calcium, respectively, on the basis of each nutrients content of standard diet.

• 자원ㆍ환경경제연구
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• 제9권5호
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• pp.903-924
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• 2000

This paper examines the alternative method to measure the state of overall economic activity. The macroeconomic variables, used for business cycle, take more than a month after a period for collection and aggregation. The electricity generation data is compiled in mechanical ways just after the period. Based on this fact, we develop the two stage estimation method for coincident economic indicators in order to detect the business cycle in an earlier period, using Stock-Watson's Dynamic Factor Model. Using monthly data from 1970 to 1999, it is found that the experimental coincidence economic indicators are well-fitted to data and also that the estimates of two stage estimation method have good explanatory power, equivalent to the experimental coincidence economic indicators. While the RMSE of coincidence economic indicators is found to be 1.27%, that of the experimental coincidence economic indicators is found to be 1.31% and that of the two stage estimation method is around 1.44%. If we take consideration into the fact that it measures the business cycle in one month earlier, we come to the conclusion that the two stage estimation is of great use.

• 대한가정학회지
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• 제18권4호
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• pp.103-107
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• 1980

This study was conducted to compare the effect of dietary sucrose and starch on the lipid metabolism of Rat fed by low protein diet for 3 and 6 weeks periods. Forty male weanling Spargue-Dawley rats weighing 52.7 grams each, after being adopted for 2 days with standard diet, were blocked into 8 groups and fed experimental diet as designed. Experimental diet were composed of two different levels of proteins, 6% designed as low protein diet and 15% designed as standard protein diet. In each group, the content of serum lipid, serum cholesterol and liver lipid were measured. The results of this experiment were summerized as follows. 1. liver lipid content was tended to be high in the sucrose group of low protein fed animal. 2. the content of total serum lipid was tended to be high in the sucrose group, and this tendency was showed statistical significance in the animals fed by low and standard protein after 6 weeks of experimental period. 3. The difference in the total serum cholesterol content between the sucrose and starch group was not significant

• 대한가정학회지
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• 제44권10호
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• pp.121-132
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• 2006

The purpose of this study was to determine the effect of the parent education program based on the MBTI for mothers' on their parenting self-efficacy and family cohesion and family adaptability. The study participants comprised 66 mothers in the experimental group and 79 in the control group. The experimental group, underwent a twelve-week long parent education program, with weekly sessions providing 2 hours of parental education; The control group received no education. Data were analyzed by MANCOVA using scores of the pretest as covariance. Significant differences were found between the experimental and control groups in parenting self-efficacy, health parenting ability and learning guidance ability subscale. However, no differences were found between the two groups in family cohesion and family adaptability.

• 대한가정학회지
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• 제44권1호
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• pp.47-58
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• 2006

The purposes of this research were to evaluate the effects of the sex education program on sexual knowledge and sexual attitude, and to provide fundamental information on sex education for middle school students. The research design was comparison and experimental groups including pre-test and post-test. The study subjects were 160 male middle school students in Pusan: 80 students of the experimental group and 80 students of the comparison group. The experimental group showed the significant differences from the comparison group in terms of sexual knowledge and sexual attitude. Through formative evaluation, students recognized human sexuality, especially in the areas of physical change, psychological change, dating, sexual drives and sexual violence. This sexual education program was designed with literature review and participated students' requests.