• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.6 no.2
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• pp.197-208
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• 2016

The purpose of this study was to verify the construct validity of self-evaluated writing scale for students with disabilities who had difficulties in writing. After interpreting the Here's How I Write scale developed by Goldstand et al. (2013), we administered Delphi survey to 40 special education professionals, calculated the content validity ratio and decided the final scale of 21 questions applicable to Korea. Additionally, we carried out the scale to 350 disabled and normal students for testing construct validity. The main results are as follows: For both students with disabilities and without disabilities, the overall internal consistency of scale are higher than .89 and the internal consistency of factors of scale are higher than .66. The confirmative factor analysis using AMOS 21.0 and SPSS 21.0 to verify construct validity showed fit index at relatively satisfactory level for students with disabilities and without disabilities. Furthermore, while there were relatively strong convergent validity and discriminant validity in the sub-factors of scale for students without disabilities, the level of convergent validity and discriminant validity were relatively lower for students with disabilities.

• Proceedings of the KIEE Conference
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• 2015.07a
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• pp.1308-1309
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• 2015

자력발전소 계측제어시스템은 과거의 아날로그 설비에서 디지털설비로 개선되고 있으며, 신규로 건설되는 발전소에서는 모든 시스템이 디지털화 되었다. 디지털설비는 하드웨어와 소프트웨어, 통신기능이 통합된 매우 복잡한 설비이며, 기존 하드웨어를 중심으로한 신뢰도 분석방법으로는 신뢰도를 확인하는데 한계가 있다. 따라서 본 논문에서는 기존의 신뢰도 분석방법의 한계를 극복하기 위하여 신뢰도 검증설비를 구성하여 다양한 시나리오에 의한 장기 종합시험을 수행하는 방식으로 신뢰도를 보증할 수 있는 방법과 구성들을 제시한다.

• Life and Agrochemicals
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• v.26 no.7 s.210
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• pp.14-17
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• 2005

• Review of KIISC
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• v.17 no.6
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• pp.20-24
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• 2007

정보보호제품의 안전성 및 신뢰성이 검증된 제품의 공급 및 이용 촉진을 위해 운영되고 있는 정보보호제품 CC 인증제도, 암호제품에 대한 암호 검증제도, 공공기관 도입 정보보호제품에 대한 보안적합성 검증제도 등에 대한 현황 및 향후 추진방향을 살펴본다.

• The Journal of Korean Academy of Sensory Integration
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• v.20 no.2
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• pp.11-21
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• 2022

Objective : This study examined the test-retest reliability and interrater reliability of the Sensory Processing Scale for Children (SPS-C). Method : Senventy primary caregivers of children with sensory processing difficulties and 3 years old participated in the study. The subjects were recruited through child development centers, welfare centers, and acquaintances located in Seoul, Gyeonggi-do, Busan, and Gyeongsang-do. The test-retest reliability verification targeted 20 main caregivers of children with difficulty in sensory processing. Re-evaluation was performed within 7 to 14 days after the initial evaluation, and Pearson's correlation coefficient was used to confirm the relevance between the two time points, and the Intraclass correlation coefficient was used to confirm the degree of agreement. The interrater reliability verification was conducted with 18 primary caregivers and 18 subsidiary caregivers of children with sensory processing difficulties. Each caregiver evaluated the same child, and the Intraclass correlation coefficient was used to confirm the agreement between the two sets of caregivers. Results : The test-retest reliability was Pearson's correlation coefficient r=.914 and intraclass correlation coefficient ICC=.939, indicating a high level of relevance and agreement. The interrater reliability was an Intraclass correlation coefficient ICC=.727, which showed a moderate level of agreement, but the tactile area (ICC=.455) and proprioceptive area (ICC=.439) were not statistically significant and showed a low degree of agreement. Conclusion : Through this study, it was confirmed that the children's Sensory Processing Scale for Children (SPS-C) is a stable evaluation tool with test-retest reliability and interrater reliability verified, and it will be able to provide help in standardization studies for future clinical use.

• Therapeutic Science for Rehabilitation
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• v.8 no.3
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• pp.43-55
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• 2019

Objective: The purpose of this study is to conduct a preliminary research for the development of a Performance-Based Cognitive Function Test (PCFT) to screen the elderly for cognitive function impairment, and examine the reliability and validity of the test. Methods: A draft version of the Performance-Based Cognitive Function Test (PCFT) was developed and utilized in nine healthy elderly individuals. In order to verify its reliability, we analyzed the internal consistency of the PCFT. In order to verify the concurrent validity of the PCFT, this study analyzed the correlation between motor-cognitive dual task assessments and the Korean version of the Mini-Mental State Examination (MMSE-K). Results: The internal consistency of the PCFT for motor and cognitive tasks was 0.871 and 0.959 (Cronbach's ${\alpha}$), respectively. Concurrent validity of the PCFT, which was performed through motor-cognitive dual task assessments, ranged from 0.755 to 0.964 (Spearman's rho statistic, p < 0.05). In addition, correlation between the cognitive assessment tool and the MMSE-K ranged from 0.849 to 0.943 (p < 0.01). Conclusion: This study verified, and established the reliability and validity of the PCFT. Further studies are required to examine other psychometric properties in a modified PCFT, for screening cognitive function impairments in the elderly.

• Fire Science and Engineering
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• v.22 no.4
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• pp.42-49
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• 2008

This research is to provide a scheme for an automatic fire alarm system with higher reliability through solving problems of malfunctioning (false or missing fire alarm) and power interruption (result from frequently unwanted activation, etc) of an automatic fire alarm system. A digital control system with microprocessor-based is proposed to reduce the possibility of malfunctioning through a combinational use of heat, smoke and CO sensors. Higher reliability could be achieved by these multiple sensors based fire detection system and fire distinction algorithm. In this research, we implemented actual fire detection system and conducted fire test to verify improvement on reliability.

• The Journal of the Korea Contents Association
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• v.16 no.8
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• pp.71-80
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• 2016

This study is based on the previous research which proved that "seeking convenience", "seeking low-cost" and "pleasures of shopping" are the major shopping motivation of online shopping. Research is conducted by using the trust as mediator, purchase intention as dependent variable. Also, differences between Chinese and Vietnamese consumers are applied in analysis of the model. The results were as follows: First, "seeking low-cost" and "pleasures of shopping" have positive effects on trust. Second, all shopping motivation have positive effect on purchase intention. Third, the trust has positive effect on purchase intention. Fourth, consumers' shopping motivation have significant difference in trust and purchase intention according to Chinese and Vietnamese consumers. The results of this study presented the strategic implications for operators at online shopping area.

• Journal of KIISE:Computing Practices and Letters
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• v.15 no.7
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• pp.500-504
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• 2009

A reliability of software is a type of nonfunctional requirement. Traditionally, a validation of the reliability is processed at the integration phase in software development life cycle. However, it increases the cost and the risk for the development. In this paper, we propose reliability analysis method based on mathematical analytic model at the architecture design phase of the development process as follows. First, we propose the software modeling methodology for reliability analysis using Hierarchical combined Queueing Petri Nets(HQPN). Second, we derive the Markov Reward Model from the HQPN based model. We apply our approach to the video conference system to verify the usefulness of our approach. Our approach supports quantitative evaluation of the reliability.

• The Journal of the Korea Contents Association
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• v.15 no.10
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• pp.517-534
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• 2015

The purpose of this study is to identifies the effects of service quality factors on satisfaction and trust, and then verifies the causal relations among satisfaction, trust, commitment and using intention in mobile service setting. A survey was conducted to collect the data with consumers who had the actual using experience about mobile services. Analysis of structural equation modeling with SPSS 20.0 and AMOS 16.0 were performed to test the research hypothesis. The result of the study as follows: First, it was found to difference in relationship between dimensions of mobile service quality and satisfaction except for the pleasure. Second, the sociality was found to significant path coefficients in relationships with trust. Third, satisfaction and trust have influence on commitment and commitment has effects on using intention, but there had no significant path coefficients between satisfaction and trust, and then both satisfaction and trust were not found to significant path coefficients in relationship with using intention. Therefore, Marketers of mobile service corporate have to give excellent service quality to consumers who have using their mobile service for increase of using intention through build up trust and commitment by consumers who satisfied.