• 가정과삶의질연구
• /
• 제10권1호통권19호
• /
• pp.131-138
• /
• 1992

Regression analysis has become a standard statistical tool in the behavioral science. Because of its widespread popularity. regression has been often misused. Such is the case when the dependent variable is a qualitative measure rather than a continuous, interval measure. Regression estimates with a qualitative dependent variable does not meet the assumptions underlying regression. It can lead to serious errors in the standard statistical inference. Logit model is recommended as alternatives to the regression model for qualitative dependent variables. Researchers can employ this model to measure the relationship between independent variables and qualitative dependent variables without assuming that logit model was derived from probabilistic choice theory. Coefficients in logit model are typically estimated by the method of Maximum Likelihood Estimation in contrast to ordinary regression model which estimated by the method of Least Squares Estimation. Goodness of fit in logit model is based on the likelihood ratio statistics and the t-statistics is used for testing the null hypothesis.

• 한국소프트웨어감정평가학회 논문지
• /
• 제15권1호
• /
• pp.25-35
• /
• 2019

우리나라에서 컴퓨터프로그램의 실질적 유사성 여부 판단은 정량적인 유사도를 산출하여 그 결과를 활용하는 방식이 일반적으로 이용된다. 실질적 유사성은 유사한 부분의 양과 질을 고려하여 판단되어야 하는데, 실무에서는 정량적인 유사도 계산 과정에서 가중치를 곱함으로써 유사한 부분의 질을 고려하는 모습을 보인다. 그런데 실질적 유사성 판단과 관련하여 유사한 부분의 양적, 질적인 고려는 동일한 지위에서 순차적으로 이루어져야 한다는 본질적 특징을 고려할 때, 현재와 같은 실무 방식은 적절하다고 할 수 없다. 이에 이와 같은 가중치 활용의 문제를 지적하고, 실질적 유사성 판단을 위한 유사 부분의 질적 평가는 정량적 유사도 판단에 후행하여 그와 동일한 지위에서 이루어져야 함을 제시 및 이를 위한 적절한 실무적 방안을 제언하였다.

• 복식문화연구
• /
• 제10권6호
• /
• pp.601-616
• /
• 2002

Qualitative research is a method widely used in marketing research. However, the method has seldom been used in fashion marketing research in Korea. The purpose of this study was to prove that using both qualitative and quantitative research methods in main stage is much useful than using qualitative research method only in exploratory stage. Qualitative data were gathered by conducting Focus Group Interview(FGI) with 48 college students. Quantitative data were gathered by surveying college students, and 487 questionnaires were used in the statistical analysis. The data were analyzed using content analysis, mean, standard deviation, and t-test. As a result, FGI, one of the tools used in qualitative research methods, was proved to be useful in revealing consumers´deep emotional needs as well as purchase motives. FGI also revealed information which quantitative research method tools such as survey could have missed. Therefore, it is best to use multiple methods-simultaneous use of quantitative and qualitative methods-to understand fast changing consumers´needs and purchase motives.

• 가정과삶의질연구
• /
• 제15권3호
• /
• pp.15-32
• /
• 1997

The purpose of this study is to understand the elements of the standard of living aspired by today's Korean consumers with the consumer choice theory of the institutional school. This study attempted a qualitative method that is narration to collect live stories from 12 narrators. The results of this study indicated that Korean consumers eagerly aspired socially oriented standard of living which is farely materially oriented and mainly composed of a fixed list of famous brands. The physiological and welfare elements of the standard of living were not expressed in 12 narrators' stories. The personal and individual elements were also expressed within a limited extend. These results imply that the neoclassical theory of consumer choice is not appropiate for consumers in culture of collectivism.

• Journal of Information Processing Systems
• /
• 제1권1호
• /
• pp.79-85
• /
• 2005

In this paper, we dealt with substantial asset analysis methodology applied to two-dimensional asset classification and qualitative evaluation method according to the business process. Most of the existent risk analysis methodology and tools presented classification by asset type and physical evaluation by a quantitative method. We focused our research on qualitative evaluation with 2-dimensional asset classification. It converts from quantitative asset value with purchase cost, recovery and exchange cost, etc. to qualitative evaluation considering specific factors related to the business process. In the first phase, we classified the IT assets into tangible and intangible assets, including human and information data asset, and evaluated their value. Then, we converted the quantitative asset value to the qualitative asset value using a conversion standard table. In the second phase, we reclassified the assets using 2-dimensional classification factors reflecting the business process, and applied weight to the first evaluation results. This method is to consider the organization characteristics, IT asset structure scheme and business process. Therefore, we can evaluate the concrete and substantial asset value corresponding to the organization business process, even if they are the same asset type.

• 대한방사선기술학회지:방사선기술과학
• /
• 제44권5호
• /
• pp.443-449
• /
• 2021

In this study, the purpose is to present the foot inclination angle for realizing an image similar to that of the existing examination method and to present the clinical usefulness of the new examination method through comparison between the existing examination method and the newly designed standing foot oblique projection. A foot phantom was used, and the magnification of the image according to the angle was quantitatively evaluated by attaching a nut to the position of the cuboid of the phantom. The internal oblique image acquired using a 30° wedge was set as the standard image. And that image was compared with the images acquired by changing the angle of the foot from 20° to 65° at intervals of 5°. Image evaluation was performed by 3 radiological technologists, and qualitative evaluation using a Likert 5-point scale for evaluation items of true oblique view and quantitative evaluation of the value obtained by measuring the diameter of a nut in each image were performed as image evaluation. For data analysis, reliability analysis between the measure and comparative analysis of the average value for each angle were performed. The qualitative evaluation score for each image was 4.5 to 5 points for most questions in the case of the standard image. And 4 points or less for most questions in the images with a foot angle of 45° or less, and an evaluation score close to the standard image was obtained in the image of 50° or more. And in the quantitative evaluation, the diameter of the nut was measured to be 9.28~9.56 mm. The qualitative evaluation showed a reliability of 0.95~1.0 and the quantitative evaluation was 0.62. As a result of comparing and analyzing the average of the quantitative and qualitative average values for each angle image, the group with the average value most similar to the standard image was images obtained at 55° and 60°, and in the post-analysis, the images of both groups were the same group as the standard image(p<0.01). As a result of this study, it was found that the angle of inclination of the foot for realizing the image most similar to the existing image in the standing foot oblique projection is 55°~60°. In addition, if this test method is applied to the clinic, it is believed that it will help prevent safety accidents such as falls during the test and improve test efficiency by minimizing the movement of patients for the test.

• 대한토목학회논문집
• /
• 제38권5호
• /
• pp.733-739
• /
• 2018

공공복지를 위해서 다양한 공공 건설사업이 수행되었고, 이에 공공사업의 효과와 효율에 대한 적절한 평가에 대한 필요성이 요구되고 있다. 국토교통부에서 건설기술진흥법상에 공공건설공사 사후평가를 법제화를 통해 공공공사 중 공사비가 300억 원 이상인 사업은 사후평가를 수행하도록 규정하였다. 이를 위해 국토교통부는 사후평가를 정량적 평가와 정성적 평가를 포괄하고 이의 효율적 수행을 위해 사후평가 매뉴얼을 제공하였다. 그러나 사후평가 매뉴얼은 시설물별 특성 등을 반영하지 못하고 전반적인 사후평가 개념과 절차만을 제공하였다. 따라서 본 논문은 기존 연구와 사례를 분석하여 사후평가 중 정성적 평가를 위해 수행되는 설문조사 표준포맷을 제시하였다. 본 연구 결과, 표준화된 설문양식을 기반으로 대부분의 토목 및 건축 시설물의 사후평가에 적용할 수 있다. 그러나 시설물의 종류와 특성을 반영한 세부적인 설문항목의 개발과 피드백을 위한 데이터 저장 및 처리 시스템에 대한 추가 연구가 필요할 것으로 생각된다.

• 설비공학논문집
• /
• 제25권2호
• /
• pp.70-78
• /
• 2013

Plants which are having conditions of high temperature and pressure always are exposed to danger. In order to prevent unexpected accidents, safety management that can effectively and appropriately examine facilities is required in plant operation. RBI(Risk-Based Inspection) technology in API 581 is one of standard management technique for evaluating risk on petroleum plants. There are qualitative and quantitative assessments in RBI methodology. Quantitative evaluation step is complex and required much information, so high-risk facilities in plant are selected firstly by qualitative method. Qualitative RBI is performed by choosing the answer in prepared questionnaire. However, it is difficult to believe thoroughly results from survey including ambiguous information. In this study, the procedure of qualitative RBI analysis with considering probability distribution concept were proposed by using Monte Carlo simulation method in order to increase reliability in spite of uncertain factors. In addition, qualitative risk of cooling system for LNG plant was evaluated using proposed procedure. Although 20 items of total 39 assessment items are applied to uncertain factors, risk section of high probability(89%) were verified. The detailed results were described in manuscript.

• 산경연구논집
• /
• 제12권7호
• /
• pp.15-25
• /
• 2021

Purpose: The greatest asset to all organizations is the employees and they should be guarded against factors hindering their work ability. Nevertheless, most organizations are always more concerned about making profits to the extent of forgetting their employee's welfare. On this point, this study aims to examine employee's work-related stress and its relationship with work ability. Research design, data and methodology: This study focused on obtaining mostly peer-reviewed works to suggest research findings, assuming that qualitative literature approach allows researchers to explore in-depth information concerning complex issues in a standard life setting. Numerous prior researchers applied their research design in content analysis, especially where various concepts are present for analysis. Results: Based on numerous qualitative textual resources, this study found that human resource practitioners should plan stress management strategies for their employees to apply five kinds of solutions that the current study suggests because it is vital to ensure their wellbeing towards sustaining their performance. Conclusions: All in all, based on the findings, this study concludes that employee's work stress negatively impacts their work ability with affecting their mental health. As a result, there is little doubt that practitioners should regularly monitor the working environment for stress-related factors besides creating a healthy working environment for all employees.

• Natural Product Sciences
• /
• 제9권1호
• /
• pp.10-12
• /
• 2003

In the present study, dikamali resin (obtained from the leaf buds and the young shoots of Gardenia gummifera Linn.) was extracted with diethyl ether and the extract was vacuum dried. Qualitative tests confirmed the presence of flavonoids and free phenolic compounds in the extract. The antioxidant property (qualitative) of the extract was performed by TLC method $({\beta}-carotene-linoleate method)$. The $LD_{50}$ of the extract was found to be 2227 mg/kg by Karber's arithmetic method. The extract was screened for analgesic, anti-inflammatory, antipyretic (100, 200 and 400 mg/kg) and anthelmintic (0.1,0.2 and 0.5%w/v) activities by standard methods. The extract exhibited antioxidant property and prevented oxidation of ${\beta}-carotene$. The extract exhibited significant graded dose response for analgesic, anti-inflammatory, antipyretic and anthelmintic activities. The extract caused the death of earthworms in all experimental concentration whereas the standard drug (piperazine) only effected paralysis. The present study proved the claims of dikamali resin mentioned in the Indian system of medicine.