• 농촌지도와개발
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• 제22권3호
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• pp.333-344
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• 2015

The purpose of this study was to assume suitable cultivation areas by items and expectably suitable cultivation areas through coefficient of specialization and spatial concentration analysis, and suggested regional specialized items discovered by this research and regional specialized business management plans & development directions. This study has monitored changing aspects of spatial distribution of suitable cultivation areas in stockbreeding items from 2000 to 2010 by applying methods of location quotient(LQ), a multiple model, and etc, and predicted changing aspects of suitable cultivation areas from 2015 to 2020. As the result of analysis, I found that there were specialized items which were spatially concentrated and that there were hot-spots which were focused on some areas by items. Additionally, there were suitable cultivation areas which remained stable or changed by them. To discover specialized items and to develop businesses, I have suggested that it is necessary to ensure business project's feasibility including the present conditions, circumstances & potential of specialized items, and etc., and to secure business competitiveness including technology exchange, production cost curtailment, business management based on consumer's needs and building systematic data about achievement and etc.

• 대한간호학회지
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• 제40권6호
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• pp.882-891
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• 2010

Purpose: This study was designed to identify burnout and factors influencing burnout in contingent nurses. Methods: A cross-sectional design was conducted with a sample of 228 contingent nurses randomly selected from 25 general hospitals in Korea. The tools used for this study were scales measuring burnout (8 items), job stress (8 items), job satisfaction (9 items), self efficacy (9 items), organizational commitment (9 items), empowerment (9 items), autonomy (7 items) and social support (8 items). The data were analyzed using SPSS 15.0 employing Pearson correlation coefficients and multiple regression analysis. Results: The mean score for burnout in contingent nurses was 3.05 points. Factors influencing burnout in contingent nurses were identified as job stress (${\beta}$=.40), satisfaction level with current ward (${\beta}$=-.25), organizational commitment (${\beta}$=-.21), job satisfaction (${\beta}$=-.19) and empowerment (${\beta}$=-.16). These factors explained 65.0% of burnout reported by contingent nurses. Conclusion: The results indicate which factors are major factors influencing burnout in contingent nurses in general hospitals. Therefore, these factors may serve as predictors of burnout in contingent nurses.

• 대한화학회지
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• 제65권1호
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• pp.48-57
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• 2021

본 연구는 국제 학업성취도 평가인 TIMSS 2019 사전검사에서 지필 평가와 컴퓨터 기반 평가로 시행된 과학 평가 문항을 분석하여 검사 매체에 따라 문항 정답률에 영향을 미치는지를 문항 및 학년별로 살펴보았다. 그 결과, 4학년과 8학년 모두 검사 매체에 따른 과학과 문항 정답률 차이가 크지 않았다. 학년별로 살펴보면, 8학년보다는 4학년의 경우 정답률 차이가 상대적으로 크게 나타났다. 문항별로 살펴보면, 선다형 문항보다는 서답형 문항의 경우 정답률 차이가 상대적으로 크게 나타났다. 검사 매체 영향에 대한 과학과 평가 문항 내용을 분석한 결과로는 선다형 문항은 지필 평가와 컴퓨터 기반 평가 문항간의 차이가 거의 없었으나, 서답형 문항은 지필 평가에 비해 서답형 문항의 정답률이 낮아지는 경향을 보였다. 또한, 학년별로는 4학년 학생들이 8학년 학생들보다 서답형 문항에서 정답률이 낮아지는 것으로 나타났다. 본 연구를 토대로, 우리나라 컴퓨터 기반 평가의 개발과 현장 도입과 관련된 시사점을 제공하고 컴퓨터 기반 평가가 학교 평가로 잘 정착하기 위한 교육적 함의를 고찰하고자 한다.

• 한국치위생학회지
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• 제17권1호
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• pp.39-47
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• 2017

Objectives: Identifying influencing factors of stress in clinical practice of dental hygiene students through controlling the amount of stress in clinical practice. Methods: A self-reported questionnaire was filled out by 226 dental hygiene students in Daejeon, Cheongju and Jeolla province from March 2 to 30, 2016. The contents of the questionnaire included general characteristics (6 items), clinical practice characteristics (4 items), clinical practice stress (16 items), quality of life (24 items), health promotion behavior (20 items), OHIP (14 items), and critical thinking disposition (15 items). Data was analyzed using SPSS 19.0. for one way ANOVA, scheffe' posthoc test, Pearson correlation coefficients, and multiple regression analysis. Cronbach's alpha of clinical practice stress, quality of life, health promotion behavior, OHIP, and critical thinking disposition were 0.827, 0.913, 0.896, 0.921 and 0.778, respectively. Results: Clinical practice stress was 3.38 points, quality of life was 3.40 points, health promotion behavior was 3.21 points, OHIP was 4.21 points and critical thinking disposition was 3.17 points. Conclusions: Factors that had impact on clinical practice stress include sleeping state, satisfaction of clinical practice, practice number, and the quality of life, and they appeared statistically significant (p<0.05). This exercise showed the necessary manuals and system implementations in clinical practice, which can reduce the amount of stress in dental hygiene students.

• 가정과삶의질연구
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• 제21권3호
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• pp.15-28
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• 2003

The purpose of this study was to develop a family functioning scale that is suitable for Korean families. The data for this study were obtained from a survey on a sample of 350 mothers of school-age children, who were living in Seoul, Kyunggi-do, and other cities of Korea. The major findings ate as follows; 1) Through the item discrimination test, 63 of the 77 items were found to be significant, thus deemed acceptable. The level of discrimination indices of the 63 items ranged from .38 to .84. 2) A factor analysis was conducted on the 63 items. Six different factors (Emotional Support, Family Intimacy, Respect for Autonomy, Communication, Family Rules, Time Spent Together) emerged for 37 items. The six factors accounted for 56.51% of total variance. 3) A multiple regression analysis was conducted to reduce the number of items, and the final 36 items were selected for the Family Functioning Scale. 4) The reliability measured by the internal consistency of the 36 items was high (Cronbach's a =.93). 5) The Family Functioning Scale was found to have a significant correlation with FACESIII(r=.80) as well as with FAD(r=.78).

• 인터넷정보학회논문지
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• 제14권6호
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• pp.1-8
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• 2013

거대한 데이터베이스로부터 중요하고 의미 있는 정보를 찾아내기 위해 데이터 마이닝 기법들이 사용되며, 패턴 마이닝은 이러한 데이터 마이닝을 위한 중요한 기법 중에 하나이다. 패턴 마이닝은 거대 데이터베이스로부터 유용한 패턴을 찾아내는 기법이며, 패턴 마이닝 분야 중에 하나인 빈발 패턴 마이닝은 데이터베이스에서 최소 임계치 이상의 빈도수를 가지는 빈발 패턴을 마이닝 한다. 전통적인 빈발 패턴 마이닝은 전체 데이터베이스에 대한 단일 최소 임계치를 기반으로 중요 빈발 패턴을 마이닝 한다. 단일 최소 임계치 모델은 데이터베이스 내 모든 아이템이 동일한 특성을 가진다고 암묵적으로 가정한다. 그러나 실제 응용에서는 각 아이템들이 개별적인 특성을 가지고 있을 수 있으며, 따라서 이를 반영한 패턴 마이닝 기법이 요구된다. 데이터베이스 내 아이템들의 이러한 특성이 반영되지 않은 빈발 패턴 마이닝 모델에서, 중요한 희귀 아이템이 포함된 패턴을 마이닝 하기 위해서는 낮은 최소 임계치를 설정해야 한다. 그러나 너무 낮은 최소 임계치는 의미 없는 아이템들을 포함하는 수많은 패턴을 야기한다. 반대로 높은 최소 임계치는 희귀 아이템이 포함된 패턴을 마이닝 하지 못하는 희귀 아이템 문제라 불리는 딜레마가 발생한다. 이러한 문제의 해결을 위한 초기 연구들은 아이템 빈도수에 따라 데이터를 몇 개의 블록으로 분할하거나 관련 희귀 아이템들을 하나의 그룹으로 만드는 방법을 사용한 근사적 접근법을 제안하였다. 그러나 이러한 기법들은 근사적 방법의 적용에 의해 모든 희귀 패턴을 포함한 빈발 패턴을 마이닝 하지 못한다. 다중 최소 임계치를 고려한 패턴 마이닝 모델은 아이템들의 개별적인 특성을 반영하여 희귀 아이템 문제를 해결하기 위해 제안되었다. 다중 최소 임계치 기반의 빈발 패턴 마이닝 모델에서 각 아이템은 MIS (Minimum Item Support)라고 불리는 개별 최소 임계치를 가지며, 아이템들의 데이터베이스 내 빈도수를 기반으로 계산된다. 다중 최소 임계치 모델은 MIS를 통해 수많은 의미 없는 패턴을 생성하지 않고도 손실 없이 모든 희귀 빈발 패턴을 찾아낸다. 한편, 빈발 패턴을 마이닝 하는 과정에서 후보 패턴들이 생성되며, 단일 최소 임계치 모델에서는 각 후보 패턴의 빈도수가 유일한 최소 임계치와 비교된다. 따라서, 희귀 아이템 문제가 발생할 뿐만 아니라 후보 패턴을 구성하는 아이템들의 특성이 고려되지 않는다. 다중 최소 임계치 모델에서는 이 문제를 다루기 위해 후보 패턴을 구성하는 아이템들의 MIS 값 중에서 가장 작은 MIS 값을 해당 후보 패턴의 최소 임계치로 설정하여 패턴 내 아이템들의 특성을 반영한다. 이를 적용하여 효율적으로 희귀 빈발 패턴을 마이닝 하기 위해 트리 구조 기반의 알고리즘은 빈도수 내림차순으로 트리 내 아이템들을 정렬하는 단일 최소 임계치 모델과는 달리 MIS 내림차순으로 아이템들을 정렬하여 마이닝을 수행한다. 본 논문에서는 다중 최소 임계치 기반의 빈발 패턴 마이닝 알고리즘에 대한 특성을 살펴보고, 일반 단일 임계치 기반 알고리즘과의 성능평가를 수행한다. 성능평가는 실행 속도, 메모리 사용량, 그리고 확장성의 관점에서 수행된다. 성능평가 결과, 다중 최소 임계치 기반의 빈발 패턴 마이닝 알고리즘은 희귀 빈발 패턴을 포함한 모든 빈발 패턴을 단일 임계치 기반의 빈발 패턴 마이닝 알고리즘보다 더 빠른 속도로 마이닝 하였으며, 각 아이템의 최소 임계치 정보를 위한 추가적인 메모리를 필요로 하였다. 또한, 비교 알고리즘들은 좋은 확장성 결과를 보였다.

• 산업경영시스템학회지
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• 제20권44호
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• pp.333-341
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• 1997

The purpose of this paper is to compare the manufacturing process with random covariate using multiple comparison procedure. The methodology that compares each manufacturing process by inspecting the number of nonconforming items out of k-treatment, has serveral limitations and problems according to the method and contect of the analysis. The proper way of analysis, therefore, could be obtained by the multiple comparison procedure of simultaneous confidence region of variance components. Effections that affect a manufactuing process may be predictive of responce to treatments are called covariates. In the study of comparing several treatments, prsense of covariate may bias the estimates of treatment effects.

• 대한간호학회지
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• 제18권3호
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• pp.231-238
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• 1988

The purpose of this study was to assess and compare discrepancy in the scores of uncertainty perceived by patients and nurses' interperson perception. For this study, 124 hospitalized patients and the same numbered nurses assigned for direct care of each 124 patients were selected from general ward of C. University Hospital in Seoul during the time period from September to November 1987. Degree of uncertainty was measured by 27 items modified from Mishel Uncertainty in Illness Scale (MUIS), and was utilized by a Likert type scale The data were analysed by Mcnemar-test. Unpaired t-test. ANOVA, Scheffe - test and Stepwise multiple regression. The results are summarized as follows : 1. The discrepancy in the scores of uncertainty perceived by patients and nurses' interperson perception showed significant differences in 23 of 27 items : 11 of 23 items showed that the scores of patients' perception of uncertainty were higher than that of nurses' interperson perception of uncertainty. but 12 of 23 items were revealed reversely. 2. With regard to nurse's demographic variables, the discrepancy scores were the higest in the group under 22 years of age (F＝3.20, p＝.026) and in the group less than 1 year of nursing experience among 4 groups (F＝4.41, p＝.006). 3. The discrepancy scores had a tendency to be lowered in the higher age group(r＝ -.27. p＝.0026) and in the longer experienced group (r＝-.25, p＝.0052). 4. The most important variable affecting the discrepancy scores was identified to be the nurses' age which acounted for 7.2% fo the total variances in the stepwise multiple regression analysis. This was followed by patient hospital days which accounted for an additional 4.5% of the total variances. To conclude, the discrepancy in the scores of uncertainty perceived by patients and nurses' interperson perception showed significant differences in 23 of 27 items. The discrepancy scores of uncertainty had a tendancy to be lowered in the higher age group and in the longer experienced group.

• 대한방사선기술학회지:방사선기술과학
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• 제24권2호
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• pp.59-64
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• 2001

The purpose of this study was to examine the general health status of radiological technologists by using Todai Health Index(THI) that has been employed as a standard health assessment tool for a specific group. The subjects in this study were 800 radiological technologists who were working in clinics, hospitals and university hospitals in and around Seoul and in some provincial cities. A survey was conducted directly or by mail in June and July, 2001. And the response rate was 68%. Using THI, the following findings were acquired: 1. By gender, both male and female radiological technologists complained about multiple subjective symptom(I) the most. And the women made more significant complaint of eight items including irregular life. 2. By age group, the radiological technologists whose age ranged from 20 to 24 got higher marks in most of the items, including multiple subjective symptom(I) and symptoms related to eyes and skin. 3. For career, those who had worked for a year or less or for one to five years got higher marks in most of the items. 4. Concerning marital status, the unmarried people complained about many items more, and the married people's symptom was more associated with live scale(L). 5. By the type of medical institution, the radiological technologists in the university hospitals got higher marks in two items including aggressiveness(F), but those in the clinics complained about the others more. 6. Regarding a place of service, there were little differences between the radiological technologists in basement and on the ground.

• 대한본초학회지
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• 제37권2호
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• pp.13-21
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• 2022

Objectives : The evaluation of academic achievement is pivotal for establishing accurate direction and adequate level of medical education. The purpose of this study was to firstly establish innovative item analysis technique of Item Response Theory (IRT) for analyzing multiple-choice test of herbology in the traditional Korean medicine education which has not been available for the difficulty of test theory and statistical calculation. Methods : The answers of 390 students (2012-2018) to the 14 item herbology test in college of Korean medicine were used for the item analysis. As for the multidimensional analysis of item characteristics, difficulty, discrimination, and guessing parameters along with item-total correlation and percentage of correct answer were calculated using Classical Test Theory (CTT) and IRT. Results : The validity parameters of strong and weak items were illustrated in multiple perspectives. There were 4 items with six acceptable index scores, and 5 items with only one acceptable index score. The item discrimination of IRT was found to have no significant correlation with difficulty and discrimination indices of CTT emphasizing attention of professionals of medical education as for the test credibility. Conclusion : The critical suggestions for the development, utilization and revision of test items in the e-learning and evidence-based Teaching era were made based on the results of item analysis using IRT. The current study would firstly provide foundation for upgrading the quality of Korean medicine education using test theory.