• Proceedings of the CALSEC Conference
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• 1999.07a
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• pp.63-94
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• 1999

본 연구에서는 지식경영을 실시하기 전에 자사의 현 상태를 진단할 수 있는 조직의 지식경영 준비도 측정 도구를 개발하였다. 조직 내 지식활동을 총체적으로 분석하기 위해 '지식고도화 모형'을 기반으로 해서, 각 영역에 사회적 요인과 기술적 요인으로 구분된 틀을 적용하여 연역하였다. 연역한 결과, 사람, 문화, 제도, 프로세스, 기술의 5차원에서 총 22개의 측정항목이 도출되었고, 도출된 요인의 타당도와 신뢰도 검증을 통해 최종적으로 5차원에서 총 21 개의 측정항목이 도출되었다.(중략)

• Journal of Digital Convergence
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• v.18 no.8
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• pp.511-518
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• 2020

The purpose of this study is to emphasize the importance of the safety and health ability to safely protect body in a risky situation in infancy, but due to the lack of a valid test tool for measuring infant safety knowledge, measure the safety and health knowledge of infants. In order to achieve the purpose of the study, opinions of education experts and early childhood education experts were collected, and suitable factors for measuring safety and health knowledge of children aged 3-5 years were extracted. The measurement questions developed based on this were surveyed on 186 children aged 3-5 years old to verify the relevance of the question composition and the reliability of the contents. In the distribution of the item response, values of 0.8 or less were deleted, and items with a correlation of r<.40 or less were also deleted, and the reliability test showed more than .70. After exploratory factor analysis, it was developed into 23 questions in 3 areas. The total score of safety and health knowledge for the final question and the degree of correlation were above .80. The tool for measuring child safety and health knowledge developed in this study was confirmed to be appropriate for item discrimination, item reliability, and content validity, and thus will be used as basic data for measuring child safety and health knowledge. After the early childhood safety and health education program is implemented, Further research should verify the effectiveness of the early childhood safety and health program.

• Journal of KIISE:Computing Practices and Letters
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• v.9 no.3
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• pp.278-288
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• 2003

Quality of the software is affected by quality of data required for operating the actual software. Especially, it is important that assure the quality of data in a knowledge-engineering system that extracts the meaningful knowledge from stored data. In this paper, we developed DAQUM tool that can measure quality of data. This paper shows: 1) main contents for implement of DAQUM tool; 2) detection of dirty data via DAQUM tool through case study and measurement of data quality which is quantifiable from end-user's point of view. DAQUM tool will greatly contribute to improving quality of software product that processes mainly the data through control and measurement of data quality.

• Journal of Digital Convergence
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• v.16 no.2
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• pp.479-488
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• 2018

To develop and test validity and reliability of Korean version of the Student Perception of Patient Safety Knowledge, Skills, Attitudes to assess applicability for nursing students. Survey data were collected from convenience sample of 425 fourth year nursing students who enrolled in four universities. Data were evaluated using item analysis, content validity, exploratory factor analysis, and Cronbach's alpha. The attitudes scale was eliminated since item-total correlations were less than .3, on the final Korean Version Scales. The attitudes subscale needs further refinement before implementation. The finding out this study demonstrate that the knowledge and skills scales showed satisfactory validity and reliability. It is useful to evaluate nursing students during educational preparation and in practice.

• Journal of Korean Home Economics Education Association
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• v.29 no.1
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• pp.35-56
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• 2017

The purposes of this study were to develop an instrument to examine the latent domains to measure H-PCK and verify the reliability and validity of the instrument. To accomplish these purposes, instrument item development, content validity, pilot study, and main study were conducted. The results were as follows. First, based on a review of extant literature, 29 items for H-PCK were developed. Seven items were deleted from the original instrument after determining content validity by 10 in-service Home Economics teachers, which resulted in the 22 items of 3 domains(Knowledge of perspective on Home Economics Education(KP), Knowledge of Home Economics curriculum(KC), Knowledge of Home Economics instructional strategies(KI)). Second, data were collected from 137 Home Economics teachers via mail survey for pilot study to establish reliabilities for each individual domain and across the domains based on Cronbach's ${\alpha}$ and item-total correlation. The result showed good reliabilities in the cut-off value of .7 and .5 for Cronbach's ${\alpha}$ and for item-total correlation respectively. Third, the main study was performed with 220 Home Economics teachers via e-mail survey and the reliability and validity tests were conducted. The reliability test results showed good reliabilities. The model for confirmatory factor analysis(CFA) provided a good fit to the data (e.g., CFI=.92, RMSEA=.06, SRMR=.05) to evaluate construct validity. The three domains of KP, KC, and KI demonstrated the acceptable convergent and discriminant validities in each individual domain and over domains. Thus, the instrument in this study may be utilized to measure H-PCK. Finally, criterion-related validity was performed to examine the extent to which the three domains are related to teacher efficacy with Pearson correlation (${\rho}$). It was relatively highly correlated at ${\rho}=.7$. In addition, the higher H-PCK the Home Economics teachers had, the higher teacher efficacy they had. The final instrument consisting of 22 items from 3 domains were determined through the entire procedure.

• Proceedings of the Korea Information Processing Society Conference
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• 2000.10a
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• pp.23-26
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• 2000

정보기술이 발달하면서 자료의 흔적들이 체계화된 데이터베이스에 저장이 되고, 더불어 데이터베이스의 규모는 점점 커지고 있다. 데이터 마이닝은 이런 방대한 자료의 분석을 통해, 그 속에 숨어있는 의미를 찾는 과정이라고 볼 수 있다. 본 논문에서는 대용량 데이터베이스에 존재하는 여러 유용한 지식을 추출하는 방법으로서 데이터 마이닝을 분류화, 클러스터링, 요약규칙, 시간에 따른 분석 및 예측등으로 분류하여 요약, 제시하였고, 이렇게 추출된 패턴, 정보, 지식들의 유용성을 측정하는 지표를 정리하였다. 개발된 XM-Tool/Miner은 문제 중심적 마이닝 도구를 목표로 하였으며, 대표적인 마이닝 알고리즘을 적용하였고, 또한 사용의 편이성에 초점을 맞추었다. 더 나아가 데이터 마이닝 기법뿐만 아니라 데이터의 샘플링과 성능향상을 통하여 방대한 데이터로부터 다양한 지식탐사가 가능해지고, 발견된 규칙 또는 지식의 유용성 측정을 통하여 업무 분야의 특성에 따라 효과적으로 반영되며 의사결정 및 CRM 마케팅, 동향분석 및 예측 등에 유용한 정보를 추출하는 도구로 사용할 수 있을 것이다.

• Journal of the Korea Convergence Society
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• v.8 no.5
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• pp.53-60
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• 2017

This study was conducted to develop the Sexually Transmitted Infections (STI) Knowledge Scale for adolescents. Based on a literature review, the first preliminary 40 questions were created, which content validation by expert reviewers and a pilot study then refined into a draft scale of 29 items. To confirm the validity and reliability of this preliminary scale, data were collected from 141 adolescents between February 13 and 26, 2016: factor analysis resulted in a factor loading of more than .52, while convergent validity revealed that the group receiving STI education was significantly higher (p=.009). The final version of the scale contained 16 items, with a reliability measured by Cronbach's ${\alpha}$ of .85 and the 39.3% of correct answers. The STI knowledge scale developed in this study is a valid scale that can be used to evaluate the effectiveness of STI education for adolescents.

• 한국정보교육학회:학술대회논문집
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• 2007.08a
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• pp.123-128
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• 2007

지식의 양이 기하급수적으로 늘어나고 지식의 창의적인 활용이 세상을 지배하는 지식기반사회에 사는 현대의 아동들에게 무엇보다 중요한 창의력이 오히려 급격히 감소하는 경향을 보이는 이 때, 온라인 학습을 통해 아동들의 수학적 창의력을 신장할 수 있다고 생각하며 수학적 창의력의 요소중 다양한 관점으로 문제를 해결하는 능력을 신장시키기 위해 수학적 능력을 측정할 수 있는 평가도구 프로그램과 측정도구를 이용하여 실시하여 수학적 창의력이 신장됨을 알았다. 그 결과 온라인 학습은 수학적 창의력 신장에 도움을 준다고 할 수 있다.

• The Journal of the Korea Contents Association
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• v.22 no.9
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• pp.439-450
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• 2022

Purpose: This study was to develop the Preventive Self-Management Knowledge related to Premature Labor (PSMK-PL) scale for women of childbearing age. Methods: Preliminary items were developed based on the literature and interview results of those who experienced premature labor. The online survey was conducted and the data of 250 women were analyzed using the DIMTEST and DETECT programs by applying the item response theory. Internal consistency reliability was analyzed with Cronbach's alpha (95% CI). Results: Among the 30 preliminary items, six items were deleted. The difficulty and discrimination of the 24 final three-dimensional scales were all acceptable, respectively. Cronbach's alpha (95% CI) was .89 (.87~.91). Conclusion: The PSMK-PL scale generally consisted of items with validity, and the reliability was acceptable.

• Korean Journal of Child Education & Care
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• v.17 no.3
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• pp.49-63
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• 2017

This study aims to investigate the effect of early childhood teachers' mathematical attitude on their mathematics teaching efficacy and to prove the moderating role of pedagogical content knowledge (PCK) in mathematics, which we selected based upon previous literatures. To explore the effect of early childhood teachers' mathematical attitude on their mathematics teaching efficacy and the moderating role of PCK in mathematics between them, This study randomly sampled 500 early childhood teachers who work at child care centers and kindergartens in Seoul, Kyunggi province and Kangwon province and collected their responses by questionnaires. Mathematics teaching efficacy was measured with mathematics teaching efficacy scale for early childhood teachers developed by Luo (2000) and translated by Jung (2001a). Mathematical attitude was measured with Smith (2000)'s scale which we translated for this study. To measure the pedagogical content knowledge in mathematics, we revised Hong(2012)'s scale to be applicable for early childhood teachers. Direct effect of mathematical attitude on mathematics teaching efficacy and the moderating effect of PCK in mathematics were analyzed by multiple regression analysis using IBM SPSS 21.0. Study results demonstrated the significant direct effect of mathematical attitude on mathematics teaching efficacy. Also, the moderating effect of PCK in mathematics was also proved to be significant. That is, if the teacher has high level of pedagogical content knowledge in mathematics, the positive effect of mathematical attitude on mathematics teaching efficacy was even more enhanced. This results supports the current finding where PCK in mathematics functions as a moderating variable between mathematical attitude and mathematics teaching efficacy. Thus, our study is expected to provide relevant contents that should be covered during teacher education, which aims to improve early childhood teachers' mathematics teaching efficacy.