• Korean Journal of Child Studies
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• v.20 no.4
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• pp.105-117
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• 1999

This study investigated the influence of peer friendliness, conflict, and collaboration on children's problem solving performance. Eighty-two preschool children (41 pairs) filled out the Friendship Assessment Inventory and participated in 3 problem-solving sessions using the Tower of Hanoi. Results showed that just working together does not improve children's problem solving performance. The degree of friendliness children have for each other has a significant effect on their problem solving performance. The children who worked with more friendly peers were more collaborative and were better problem solvers than those who worked with less friendly peers. This study suggests the importance of the relationship between interacting peers on problem solving performance.

• Korean Journal of Child Studies
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• v.13 no.2
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• pp.53-64
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• 1992

The purpose of the present research was to investigate developmental trends in children's class-inclusion performance and to examine the influence of task characteristics(provision or deprivation of quantitative information and perceptual information) on a class-inclusion task. The subjects of this study were 96 children, 12boys and 12girls at each age level. 5, 6. 7 and 8 years of age. The experimental materials consisted of 12 stimulus boards which were constructed on the basis of picture cards used by Judd and Mervis(1979) and Lane and Hodkin(1985). The class-inclusion tasks were individually administered by the researcher. The data were analyzed by the statistical methods of t-test, one-way ANOVA and Duncan multiple range test. The results showed that (1) There were significant age differences in children's class-inclusion performance. That is, children's performance scores on the class-inclusion task increased with age.: (2) There were significant task characteristics differences in children's class-inclusion performance. That is, children performed better on the deprivation of quantitative information task than on the provision of quantitative information task.

• Korean Management Science Review
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• v.19 no.1
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• pp.179-188
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• 2002

Ventures through technological innovation are increasingly suggested as one of the main engines for economic growth that can help control inflation and black trade balance. The Purpose of this study is to extract the network performance factors for ventures according to ventures life cycle. For the Purpose, the existing studies were examined into start-up company, entrepreneurial firm, smell firms with competitive advantage against large firms, and ventures network activity. And 63 samples from ventures in Korea were taken and analyzed empirically. The analyses and results are (1) the actual conditions of network activity on ventures; (2) the investigation of relationship between network activity and performance of ventures by venture's life cycle through the observations of Korean ventures. From the results, It Is also found that factors such as external environment and a ventures life cycle have been considered as the main influences on the performance of ventures. In addition, limitations and suggestions for further studies are noted.

• Knowledge Management Research
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• v.11 no.3
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• pp.31-45
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• 2010

IT outsourcing studies have centered on the separate effect of formal contract and relational trust on IT outsourcing performance. In addition, previous studies ignored the importance of the relational capability that combine the formal contract and partnership can be able to deliver IT outsourcing effects. In this paper, we propose an IT governance commitment as a mediated role between relational capability and IT outsourcing performance. We collected data from 143 client companies of IT outsourcing and analyzed it using the PLS method. Our findings are revealed as following: At first, relational capability significantly and directly influence IT governance commitment as well as indirectly through formal contract and partnership. Secondly, IT governance commitment mediate between relational capability and IT outsourcing effect, and in turn affect IT outsourcing performance. The results and implications are further discussed.

• International Journal of Human Ecology
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• v.12 no.2
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• pp.119-131
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• 2011

This study determined the factors that contributed to role performance by childcare teachers in Korea. Questionnaire data were gathered from 425 childcare teachers. Statistical analyses consisted of t-test, ANOVA, Scheff$\acute{e}$ and hierarchical regression analysis. There were no differences in the role performance of childcare teachers by age and experience. Differences were evident by education level and workplace type. Role performance was most affected by the internal-external control followed by emotional intelligence. The findings of this study are pertinent to childcare policy makers.

• The Journal of Society for e-Business Studies
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• v.2 no.2
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• pp.75-88
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• 1997

Many Korean banks and companies have adopted EDI to replace traditioanal paper documents by electronic ones, which can move much faster with greater accuracy, Also, it is expected to reduce overall costs and maintain good relationships with customers. However, in practice, the performance of EDI seems to be less than expected. The purpose of this paper is to identify the impact of environment and adoption factors on the performance of financial EDI. We proposed a model for the relationships based on the existing literature and peformed a survey of Korean commercial banks and companies using KTNET. The results of this study are as follows: First, the business environment represented by the size of companies and the frequency of transactions showed a negative impact on the performance in terms of efficiency, which is quite converse to the common belief. Second, the technical environment, including computing skills of users and operators, showed a positive impact on the performance in terms of effectiveness. Third, the clearer the adoption purpose, the higher is the performace as intended, while the initiative for the adoption process showed no significant impact.

• Korean Journal of Child Studies
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• v.27 no.6
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• pp.81-96
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• 2006

The purpose of this study was to investigate the variables that influence public kindergarten teachers' role performance. A sample of 320 public kindergarten teachers in Gyeonggi-Do was selected randomly. Teacher's career, educational background, age, self-concept, and awareness of teaching profession, class size, age of classroom students, and organizational climate were examined as possible factors affecting teachers' role performance. Results showed that all factors except class size were related to teachers' role performance. The most significant impact on public kindergarten teachers' role performance was teacher autonomy in organizational climate.

• International Journal of Internet, Broadcasting and Communication
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• v.15 no.3
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• pp.43-51
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• 2023

Slotted ALOHA (S-ALOHA) is a classical medium access control protocol widely used in multiple access communication networks, supporting distributed random access without the need for a central controller. Although stability and delay have been extensively studied in existing works, most of these studies have assumed ideal channel conditions or independent fading, and the impact of time-correlated wireless channels has been less addressed. In this paper, we investigate the queueing delay performance in S-ALOHA networks under time-correlated channel conditions by utilizing a Gilbert-Elliott model. Through simulation studies, we demonstrate how temporal correlation in the wireless channel affects the queueing delay performance. We find that stronger temporal correlation leads to increased variability in queue length, a larger probability of having queue overflows, and higher congestion levels in the S-ALOHA network. Consequently, there is an increase in the average queueing delay, even under a light traffic load. With these findings, we provide valuable insights into the queueing delay performance of S-ALOHA networks, supplementing the existing understanding of delay in S-ALOHA networks.

• Journal of Information Technology Applications and Management
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• v.20 no.2
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• pp.39-56
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• 2013

There have been many studies that open innovation activities have positive effects on firm performance. However, the previous studies have shown conflicting results, depending on the characteristics of companies or the timing of the product launch. This study empirically compares open innovation performance of first-mover companies and follower companies. The analyses are performed on the samples of the Korean Innovation Survey 2010 companies that explored external information and performed R&D cooperation. The results indicate that open innovation activities can have different effects depending on a company's status in the market. For the first-mover companies, the intensity of utilizing external information has greater impact on the firm's performance than the diversity of it. By contrast, for the follower companies, the diversity of utilizing external information has greater impact on the firm's performance than the intensity of it. In terms of R&D cooperation, the external cooperation is found not to have significant effects on a first-mover company's performance. However, external R&D cooperation of a follower company is showing positive impact on the firm's performance. The implication of the study is to analyze the firm's Open-Innovation performance by comparing first-mover companies with follower companies. Therefore, companies need to execute the Open-Innovation strategy by considering firm characteristics or the timing of the product launch.

• Journal of Distribution Science
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• v.18 no.12
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• pp.15-29
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• 2020

Purpose: Due to an ever more interconnected global commercial environment, the role of SMEs from emerging markets has attracted considerable attention in business literature of late. Reinforced by strategic management theory, this study builds on aspects such as entrepreneurial orientation and dynamic capabilities to construct and test a framework that focuses on exploring their associations with export performance. Research design, data and methodology: To contribute further towards a deeper understanding of these markets, the current study empirically tests a model using data collected from 225 exporting firms located throughout South Africa. Results: The results from the data analysis show that entrepreneurial orientation contributes significantly towards improving the performance of South African SMEs. Additionally, this study integrates three dynamic capabilities in the strategy-performance relationship to test their interacting effects on the correlation between entrepreneurial orientation and export performance. Further findings advocate support for relationship-based capabilities playing a moderating role between entrepreneurial orientation and the exporting performance of small and medium firms emanating from emerging markets. Conclusions: Findings provide substance to the argument that entrepreneurship, as a strategy-making process, leads to export performance in emerging nations. Especially, this study provides several suggestions as to how small and medium-sized organizations can develop their exporting performance based on the research findings.