• 품질경영학회지
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• 제30권3호
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• pp.38-52
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• 2002

This paper is concerned with the analysis of structural equation model(SEM) with the ordinal data such as Likert scale. The SEM is misused when the arbitrary scores allocated to the Likert scale are treated as quantitative data. The underlying distribution approaches have been studied to solve this problem, and the partial least squares(PLS) Is also tried. In this paper the quantification methods for the Likert scale are proposed to analyze the SEM. We assume that the Likert scale is an observation of the interval of the continuous underlying distribution, and the respondents have their own patterns in the response of some questions. Normal and beta distributions as the response patterns are considered to quantify the Likert scale. To compare the efficiency of the proposed method the bootstrap simulations are tried.

• 대한지역사회영양학회지
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• 제14권5호
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• pp.600-607
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• 2009

The purpose of this study was to examine if Likert scales had been properly utilized in community nutrition research. A total of 527 research articles published in the 32 issues of Korean Journal of Community Nutrition from the volume 5, issue 1 in 2000 to the volume 10, issue 2 in 2005 were screened and 55 articles were found to have utilized one or more Likert scales for the studies. Therefore, 109 Likert scales used in the 55 studies were reviewed regarding the name, statement and response items, reliability and validity check, and analysis method. The scales were mostly referred as Likert scales (60%) or Likert-type scales (27%). Some scales were found to be referred as Likert scales although they were Likert-type scales when judged based on the information given in the respective articles. However some scales couldn't be judged for the rightness of the names because the information given for the scales in the articles was not enough. About 23% of the scales consisted of items less than 6 or more than 30, and therefore found to be inappropriate. The percentage of the scales listing all the statement items in the articles was only 25%. Most of the scales (85%) included 5 response items, and the rest included 4 (7%), 7 (6%), or 3 (2%). The percentages of the scales including appropriate center and end items were only 2% and 22%, respectively. Less than half of the scales (41%) were found to have been checked for reliability and only one scale was reported to have been checked for validity. In some scales (6%), the responses were scored improperly for analysis. The responses to the scales were frequently found to have been analyzed by parametric statistics such as mean, ANOVA, t-test, and Pearson's correlation, which might be a problem depending on the size and distribution of study samples. In conclusion, there is much room for improvement in the use of Likert scales in community nutrition research.

• 한국과학교육학회지
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• 제34권4호
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• pp.385-391
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• 2014

일반적으로 연구자들은 관찰할 수 없는 심리적인 특성들을 연구할 때 주로 척도를 이용하여 수량화한다. 과학교육 연구에서도 척도를 활용하는 사례가 자주 나타난다. 특히, 정의적 영역의 평가에서는 학생들의 태도나 인식 등의 특성을 파악하고 평가하기 위하여 척도를 많이 사용한다. 그 중에서 사용이 간편한 리커트 척도를 많이 활용한다. 하지만 리커트 척도의 경우 활용 과정에서 여러 오류들이 발생하여 이를 절대시하는 것은 유의해야 한다. 이에 본 연구에서는 흥미와 태도관련 과학교육 연구에서 리커트 척도의 활용에 따른 중심화 경향을 살펴보고 연구 대상 및 연구 내용에 따라 그 경향성이 어떠한지 분석하였다. 연구결과 연구 대상에 따라서는 대상 학교급 즉, 연령이 높아질수록 중심화 경향이 더 크게 나타났으며, 영재학생보다 일반학생의 경우 중심화 경향이 더 크게 나타났다. 연구 내용에서는 자기노출이 비교적 큰 영역에서 중심화 경향 더 나타났다. 그러므로 과학교육 연구에서도 리커트 척도를 활용할 때 중심화 경향의 오류가 발생하는 것을 알 수 있었다. 따라서 과학교육 연구에 리커트 척도를 활용할 때는 사회문화적 환경과 연구 대상 및 연구 내용의 특성을 고려할 필요가 있다. 또한 리커트 척도를 개선하여 적용해야 하며 나아가 조사 결과의 수치에만 의존하여 해석하는 것을 피해야 할 것이다.

• Communications for Statistical Applications and Methods
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• 제16권4호
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• pp.669-673
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• 2009

When a social scientist prepares to conduct a survey, he/she faces the problem of deciding an appropriate sample size. Sample size is closely connected with cost, time, and the precision of the sample estimate. It is thus important to choose a size appropriate for the survey, but this may be difficult for survey researchers not skilled in a sampling theory. In this study we propose a method to determine a sample size under certain assumptions when the quantity of interest is measured by a Likert scale.

• 한국식생활문화학회지
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• 제24권4호
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• pp.440-450
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• 2009

The purposes of study were to survey the status of nutrition education in school and investigate the perception of nutrition teacher candidates concerning the direction and ideal method for nutrition education. A questionnaire was distributed to 554 nutrition teacher candidates from August to October, 2006. A total of 468 usable data were collected (84.5% response rate). The statistical data analysis was completed by using SPSS for Windows (ver. 10.0) for descriptive analysis, ANOVA and $X^2$-test. About 52% of respondents had nutrition education teaching experience. Half of the respondents indicated that the necessity for nutrition education stemmed from their own need for such education. The main problem in students' dietary life was 'the increasing intake of processed foods, instant foods and fast foods (4.23 out of Likert 5 point scale)' and the major nutritional problem was 'high calorie intake with low essential nutrients (3.96 out of Likert 5 point scale)'. Over half the respondents (53.4%) recommended that nutrition education be oriented towards behavioral change rather than knowledge delivery. Social learning theory was preferred mostly as an theory apt to nutrition education (60.3%) and the most effective means of education was referred to organizing the regular class for nutrition education (50.5%). The 'playing such as songs or game' was reported as both effective and realizable method in nutrition education.

• 대한물리치료과학회지
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• 제13권2호
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• pp.57-65
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• 2006

This study was conducted to develop the PBL module using simulation(S-PBL), to apply it to the physical therapy curricula, and its effect on students; learning contents, learning process, and its overall impacts. The S-PBL module was apply on 47 students of first year physical therapy in Jeju Halla College for 8 weeks from 2005 Feb to April. The data was analyzed via SPSS 10.0; the evaluation of learning contents and process was divided into 5 areas; the learning impacts in 4 areas. The research sought average and standard deviations. The students; satisfaction regarding S-PBL learning contents and process averaged >3.5 (on the Likert Scale of 1 thru 5) which indicated high learning achievement. For the learning impact, using an S-PBL module, it averaged >2.8 (on the Likert Scale of 1 thru 4) which indicated high learning impact. Significantly, the students showed high satisfaction in the areas of clinical practicum, the learning process, the opportunity to participate in clinical affiliation, and motivation for acquiring professional knowledge. This study proved that the application of S-PBL is effective for the physical therapy students; ability to carry out physical therapy, and it is also worth to apply in the physical therapy curricula to improve the students; participation in clinical skills.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2003년도 추계학술대회 및 정기총회
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• pp.321-324
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• 2003

The purpose of this paper is to analyze the actual condition, the result and the problem of the military defense CALS system and seek the way of the effective use of the military defense CALS. We perform an analytic hierarchy process to find the factors that have an influence on the effective use of CALS and evaluate the level of importance of these factors. Also we estimate the actual condition and the result by the Likert 7 scale.

• 한국초등과학교육학회지:초등과학교육
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• 제19권1호
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• pp.1-13
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• 2000

For a profound understanding about the elementary students' scientific attitude, I have performed this study based on the students' opinion by the ethnographic interview and participant observation of science classes. I have analyzed the data by qualitative data analyzing method, and compared the analyzed results with analyzed results by the Likert's scaled as il questionnaire method. To perform this study, I selected one elementary school located in an agricultural village in Choong-Buk Province in Korea and studied four 5th grade students. Here, I present results of this study as follows. First, in ethnographic interview, all informants represented positive reaction to scientific curiosity. But, It is appeared that there are external curiosity and internal curiosity. Internal curiosity is more closely and positively related to problem solving skills. Second, all informants represented positive open-mindness expressing their own opinions actively and accepting other students' opinions. Students who had positive critical-mindness and voluntariness recorded high scores in science achievement. Third, scientific attitude analyzed by ethnographic methods didn't correspond with scientific attitude measured by Likert's scale in all cases. I presumed this discrepant result could come from subjects' different tendency on replying to questionnaire and students' own criterion.

• 여성건강간호학회지
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• 제4권3호
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• pp.429-440
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• 1998

A survey was conducted to examine the fatigue and the related factors in pregnancy. 426 pregnant women were recruited from antenatal clinic at 8 hospital from November 1, 1997 to January 1, 1998. Fatigue was measured by the Modification of the Fatigue Symptoms Checklist(MFSC) developed by the Industrial Fatigue Research Committee of the Japanese Association of Industrial health(Yoshitake, 1978). The MFSC consisted of 34 items with 4-point Likert scale. Minor discomfort during pregnancy was measured using a 14-item checklist with 4-point Likert scale. The data were analyzed by percentage, t-test, ANOVA and Pearson correlation. The major findings of study were as follows : 1. The average fatigue score during pregnacy was 63.02 and the average minor discomfort score was 26.92. 2. The fatigue score of nullipara was significantly lower than that of mutipara. There was a significant difference of fatigue score between pregnant women with conjugal family and those with extended family. The fatigue score during 1st trimester was the highest in comparison with that of 2nd and 3rd trimester of pregnancy. 3. The fatigue score of pregnant women who worked for house-keeping only was significantly lower than that of pregnant women who worked partially or did not work for house-keeping. 4. There were significant correlations among each type of measure of fatigue and discomfort. Fatigue was the most common symptom during pregnancy and related to type of family, house-keeping work, and parity. Nursing intervention such as self-car, relaxation, and nutrition would be developed to manage fatigue problem in pregnancy.

• 의학교육논단
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• 제19권2호
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• pp.101-108
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• 2017

When participating in problem-based learning (PBL), it is important for medical students to generate claims and provide justifications for their claims in small group discussions. This study aimed to investigate the effect of argumentation instruction on medical student learning experiences with PBL. A total of one hundred first-year preclinical students from Inje University College of Medicine, who had attended argumentation instruction, participated in this study. All of the participants completed a 5-point Likert scale questionnaire regarding their learning experiences with PBL, before and after the argumentation instruction. The questionnaire comprised 22 items with eight subcategories: argumentation activity, reflection, integration of basic and clinical science, identification of lack of knowledge, logical thinking, self-directed study, communication, and attitude toward discussion. The collected data were analyzed through a paired-sample t-test. The results of this study found that the argumentation instruction promoted the preclinical students' experiences with argumentation activities, reflection, an integration of basic and clinical science, the identification of their lack of knowledge, logical thinking, and self-directed study, and it increased positive attitudes toward group discussion. The findings suggest argumentation instruction can enhance medical student group discussions and help students achieve the objectives of PBL, including acquisition of basic and clinical science knowledge and development of clinical reasoning and self-directed learning abilities, which can highlight the meaningful learning experiences students have with PBL.