• 정보학연구
• /
• 제2권2호
• /
• pp.235-250
• /
• 1999

디지털 VLSI 소자 테스트는 소자 규격서에 정의 된 파라메터들을 최악의 환경 상태에서 소자가 설계된 기능들이 모두 동작하는 지를 보증하는 것이다. 통신용 VLSI 소자의 고집적화에 따른 제품의 신뢰성을 향상하는 것이 VLSI 소자 테스트에서 중요한 고려사항이 된다. 통신용 소자의 신뢰성 향상을 위해서 테스트 파라메터들이 증가되고 테스트 시간이 늘어난다. 데스트 종류는 크게 펑션 데스트, DC 파라메터 테스트 및 AC 파라메터 테스트로 나눌 수 있다 소자의 특성과 신뢰성을 분석하는 기존의 데스트 항목들 중에는 핀간 단락 또는 핀간 누설저항을 테스트하는 항목들이 없다. 본 논문은 핀간 현상을 모델링하고 현재의 DC 파라메터 테스트 방법을 수정하고 새로운 핀간 DC 파라메터들을 테스트하는 방법을 제안한다. 실제로 제품 테스트를 통해 테스트 방법의 수정과 추가에 따른 제품 테스트의 신뢰성 향상을 확인하였다.

• 한국보건간호학회지
• /
• 제13권2호
• /
• pp.1-11
• /
• 1999

The purpose of this study was to provide the elderly and their family kowledge about senile dementia and to get them to have positive attitude about senile dementia. The subjects were 204 elderly who lived in the whole country. The data were collected from Sep. to Dec., 1998, using a 36 items questionnaire and analyzed by SAS program for t-test, ANOVA. Scheffe test, Pearson Correlation Coefficients. The results were as follows: 1. The mean score of knowledge about senile dementia was $9.33\pm2.68$(range 0-15), The elderly who was unschooled, lived in Kyung Sang province, didn't have any hobby or interest, didn't access to informations about senile dementia got lower score than the others. 2. The examples of knowledge test items about senile dementia that the subjects above fifty percents answered uncorrectly were 'the patient of senile dementia doesn't die soon', 'senile dementia is uncurable disease', 'the symptoms of senile dementia is apparent in new and strange circumstances', 'the pood and lonely elderly is apt to have senile dementia'. 3. The mean score of attitude about senile dementia was $15.87\pm2.25$(range 0-20) and attitude about senile dementia was relatively positve. Attitude about senile dementia by general characteristic was not significantly different. 4. The examples of attitude test items about senile dementia to which the majority of subjects agreed were 'It is a pity to see the patient suffered from senile dementia', 'It is difficult to take care of senile dementia patient' and so on. 5. The correlation between kowledge and attitude about senile dementia was very low. Therefore this study suggests that it is crucial to educate the elderly and their family to induce positive attitude about senile dementia.

• 대한화학회지
• /
• 제54권6호
• /
• pp.781-786
• /
• 2010

이 연구는 중학교 1학년 과학과 지필평가 문항 중 물질 분야 문항에 나타난 정보제시의 오류와 오류 유형별 빈도수를 조사 분석하였다. 중학교 1학년 과학과 물질 분야 문항에서 조사된 정보 제시 오류 유형은 불충분한 정보, 불필요한 정보, 잘못된 정보, 교육과정 내용을 초월한 정보, 불명확한 정보 등의 다섯 가지로 나타났다. 분석한 167개의 문항 중 81개의 문항(48.50%)에서 정보 제시 오류가 있는 것으로 조사 되었다. 지필평가 문항의 정보 제시 오류로 인하여 학습자의 과학 학습에 대한 부정적인 관점이 발생할 수 있기 때문에 교사가 문항 개발할 때 세심한 검토가 필요하다.

• 아동학회지
• /
• 제9권2호
• /
• pp.1-28
• /
• 1988

The purpose of this study was to develop a behavior rating scale for the evaluation of children's development for utilization by preschool teachers. The procedures for the study included content validation, pilot test, and main study. A total of 97 items were retained after the content validation and pilot test. The items of the scale were grouped into five areas (physical, language, cognitive, emotional, and social development) and 11 sub-areas. The resulting "Behavior Rating Scale for Preschool Children" was administered to 479 boys and girls, 3-6 through 6-5 years of age, selected from 10 different kindergartens and early education centers in Seoul, Pusan, and Chonju. The analysis of data was done with SPSS computer programs, including item analysis, Cronbach's ${\alpha}$ for reliability, factor analysis to test construct validity, two-way ANOVA to test age and sex differences, and percentile norms. The 97 items of the scale were found to be satisfactory in terms of item discrimination with indices ranging from .31 to .73. Cronbach's ${\alpha}$ was .98 for the total scale and ranged from .87 to .93 in specific domains, which was considered satisfactory. The factors extracted from each area were consistent with the educational objectives of the Yonsei Open Education Program except for emotional development. The intercorrelations among the domains were relatively high, ranging from .56 to .81. Age differences were significant in cognitive, physical, and language development, but not significant in social and emotional development. Sex differences were significant in all areas with girls higher on the average than the boys. Percentile ranks were drived from the total score for each age group and quartiles were calculated for sub-scores in each domain.

• 한국정보시스템학회지:정보시스템연구
• /
• 제31권1호
• /
• pp.239-269
• /
• 2022

Purpose This paper attempts to identify items for improving the usage of PLM(Product Lifecycle Management) systems and suggests ways to prioritize improvement items on the basis of importance. It also tries to find out differences in the importance of improvement items due to the company size, the industry, the job, or the PLM solution. Design/methodology/approach Through a survey from participants to a PLM System Conference, data were collected from a sample of 181 users who had the previous experience in using a PLM system. In order to figure out the differences in the importance among user groups, the F-test with the Scheffe test as a post-hoc analysis was used in case of equal variances and the Welch test with the Dunnett T3 test was used in case of unequal variances. Findings This study sorted out 25 improvement ideas according to their importance assessed by the PLM system users. The top five ideas are improving data consistency, error minimization, fast system response time, enhancing user recognition, and business process improvement. The support group puts higher importance than the general user group in data consistency, fast system response time, enhancing user recognition, business process improvement, dedicated team for data consistency, continuous support from management, hardware performance upgrade, output linkage to other systems, and shortening problem solving duration. The largest company group attaches significantly higher weights than the smallest company group to data consistency, error minimization, fast system response time, business process improvement, dedicated team for data consistency, security with proper access management, output linkage to other systems, and better user interface.

• 한국의류산업학회지
• /
• 제14권5호
• /
• pp.846-852
• /
• 2012

Pets (such as dogs) are considered as important as family members, this perspective is due to an aging population and the decreased size of the traditional nuclear family. The pet industry has been growing every year; subsequently, is useful to develop practical patterns and designs appropriate for the body structure and movement of pet dogs. However, studies to develop a new form of pet dog's wear patterns and designs are limited. This study develops a basic pattern that is easily used based on a pet dog's size, designs popular clothing items for pet dogs, and helps in the manufactures of pet dog's wear. The results are as follow: 1) Analyzed categories and popular items of pet dog's wear from the research of the prior studies and on-line pet dog shopping malls; three categories (everyday wear, street wear, and special wear) and six items (T-shirt, one-piece, coat, jumper, and dress, tuxedo). 2) Developed the basic bodice pattern and sleeve pattern after test-wearing and revising the experimental patterns referenced from prior studies. 3) Developed patterns and designs for six popular items based on situation and gender: one-piece (everyday wear), coat (street wear), wedding dress (special wear) for female dogs/T-shirt (everyday wear), hood jumper (street wear), tuxedo (special wear) for male dogs. 4) Developed the previous six items to illustrate the research results of the study.

• 한국치위생학회지
• /
• 제20권1호
• /
• pp.73-83
• /
• 2020

Objectives: This study aimed to measure the knowledge of dental hygienists regarding dental waste, and identify the relationship between general characteristics and infection control characteristics. Methods: This study was conducted using a self-reported questionnaire in 250 dental hygienists. The questionnaire consisted of 21 items: storage container (5 items), storage locations (5 items), storage period (9 items), and storage method (3 items). The collected data were analyzed using the t-test and analysis of variance. Results: The education experience of infection management within the last year was reviewed for significant differences among dental hygienists regarding storage container and storage periods (p<0.05). Statistically significant differences were observed regarding the knowledge of storage container, storage locations, storage period, and storage method among the enrolled dental hygienists (p<0.05). Conclusions: This study examined the necessity of developing conservative education and job education programs to improve the knowledge level of dental hygienists regarding dental waste management.

• 대한수학교육학회지:수학교육학연구
• /
• 제24권4호
• /
• pp.573-594
• /
• 2014

교사의 평가 전문성의 영역 중에서도 평가 문항 제작 능력은 평가의 타당도, 신뢰도에 있어 필수적인 요소이다. 다시 말해, 평가문항의 내용적인 측면과 형식적인 측면에서의 오류는 올바른 평가를 저해하는 요소이며 이러한 평가를 통하여 긍정적 피드백이 이루어질 수 없다. 본 연구는 서울 경기 인천 일반고등학교 45개교 수학과 중간고사와 기말고사 기하와 벡터 60개 시험지의 문항 분석을 통하여 지필평가의 내용적인 측면과 형식적인 측면에서의 문항 오류와 개선점에 대하여 논하고, 이를 통하여 교사들의 평가 문항 제작에 대한 능력 제고를 그 목적으로 하고 있다.

• 한국학교보건학회지
• /
• 제17권2호
• /
• pp.97-105
• /
• 2004

Purpose: This study was undertaken in order to examine the relationships of control, perceived health status, self-efficacy, social support, and demographic characteristics for a health promoting lifestyle in college women, and to determine the factors affecting a health promoting lifestyle of women in the early stage of adulthood. Method: There were 161 students from one university in K city. The instruments used for this study were a survey of general characteristics, a health promoting lifestyle (47 items), control (8 items), perceived health status (6 items), self-efficacy (17 items), and social support (18 items). The data analysis was done by use of mean, percentage, t-test, ANOVA, Pearson Correlation coefficients and stepwise regression with the SPSS Win (Version 10.0) program. Results: The results of this study are as follows : 1) The average item score for the health promoting lifestyle was low at 2.39. In the sub-categories, the highest degree of performance was interpersonal support (2.97), and the lowest degree was health responsibility (1.76). 2) In the relationship between social demographics and a health promoting lifestyle, there were significant differences in age, disease experience, and the family's disease experience. 3) Social support revealed only significant correlations with a health promoting lifestyle. 4) Social support was the highest factor that predicted a health promoting lifestyle in college women (15%). Social support, age and disease experience accounted for 20% in a health promoting lifestyle of college women.

• 한국식생활문화학회지
• /
• 제12권1호
• /
• pp.23-33
• /
• 1997

The aim of this study has been two fold - to analyze the degree of utilization of Korean menu items in family restaurants; and to evaluate consumer satisfaction with the quality of family restaurant food and food-related service. A self-completed questionnaire survey of 280 consumers having meals in 6 family restaurants in Korea was undertaken and detailed information was collected from each. Consumer satisfaction with the quality of food and food-related service in family restaurants was evaluated by consumer questionnaires. It was measured by assessing 24 variables. Statistical data analysis was using SAS package program for descriptive analysis, t-test and analysis of variance. Importance mean score of customers was 4.07 out of 5, with performance mean score of 3.19. The gap between importance and performance scores was 0.87. The Importance-Performance Analysis (IPA) technique was used for obtaining information of the degree of utilization of Korean menu items in family restaurants. By the results of the IPA technique, menu items with fair to poor performance and high importance to the customer were cooked meals, noodles, steamed and grilled dishes, Korean salads, kimchi, beverages, single-dish course, suggesting that customer seemed to be dissatisfied with the degree of utilization of Korean menu items in family restaurants.