• Journal of The Korean Association For Science Education
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• v.37 no.6
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• pp.1015-1023
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• 2017

The purpose of this study is to investigate the process of development of explanatory hypothesis being generated by middle school students and the factors that affect the process in water wave interference phenomena by analogy scaffolding. For this purpose, the processes on how explanatory hypotheses were generated, revised, and then elaborated by analogy scaffolding were investigated and analyzed. The subjects for the study were 60 eighth grades students in one middle school divided into 12 groups according to their cognitive level measured by GALT. The research findings are as follows: First, it was found that there is a regular pattern in development of explanatory hypothesis by students about water wave phenomenon; second, the cognitive level of the student affected apparently on the students' hypothesis development process, however, it was also observed that students with inferior cognitive level could form a scientific explanatory hypothesis in the second stage of the scaffolding; third, the analogy scaffolding actually helped the students in formulating hypothesis. In conclusion, analogical reasoning can be a meaningful and powerful strategy for secondary school students to formulate explanatory hypothesis.

• Journal of the korean academy of Pediatric Dentistry
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• v.40 no.3
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• pp.223-232
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• 2013

There are many problems in evaluating study results by p value in null hypothesis testing for dental research. It is a logical fallacy to conclude that the null hypothesis is true when the it is not rejected. There are much serious misunderstanding about p value, and researchers should be cautious about interpreting p value in writing papers. As alternatives to complement or replace the null hypothesis significance testing, effect size, confidence interval, and Bayesian statistics are introduced.

• International Area Studies Review
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• v.12 no.3
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• pp.367-390
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• 2008

The Chinese cellular phone markets growth has the character which is two-sided gives the chance and threat in Korean mobile communication industry. This also demands the localization of the international marketing strategies which establishes in grasp of consumer consuming propensity and purchase intention. It is the goal that provides a strategic current point to the Korean enterprise which enter to China. To observe a test of hypothesis results concretely from empirical analysis with after words is same. The hypothesis 1, 'corporate image really will plus affect(+) in purchase intention' the hypothesis was adopted. The hypothesis 2, 'brand image really will plus affect(+) in purchase intention' also the hypothesis was adopted. The hypothesis 3, 'product attributes really will plus affect(+) in purchase intention' also the hypothesis was adopted. The other research hypothesis which sex and age were rejected, school was adopted partially, others was adopted. When about the consumer who is used from empirical analysis measurement items in the center application presents the strategies which is possible in fact.

• Korean Journal of Construction Engineering and Management
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• v.3 no.1 s.9
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• pp.91-96
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• 2002

The purpose of this study is to present a systemized flow of temporary facility(TF) planning information. The current TF planning tends to be established by subjective decision making of field workers. Therefore TF planning needs more systemized information flow to provide a reliable schedule. The study was implemented through interview with experts for reliable TF planning. The main contents of the study are as follows; 1) TF planning process model(IDEF0) are established. 2) Various information flow diagrams proposed to support TF planning decision-making. The study recommends that, as a future research, the computer system be developed for application of the information flow.

• Management & Information Systems Review
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• v.33 no.5
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• pp.131-153
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• 2014

This study has analyzed on affecting factors of the customer's empathy toward the corporate philanthropic activities in terms of corporates and their products. From the corporate perspective, we have checked how the activities affect the perception of the customer familiarity and authenticity. Study shows that the fairness of the social contribution activities have an impact on both the familiarity and the authenticity (hypothesis 1, hypothesis 2). Social contributions reciprocity has been shown to influence familiarity (hypothesis 3) and it was not statistically significant to the authenticity (hypothesis 4). Looking at the relationship between the familiarity and authenticity from the product side, charm and familiarity (hypothesis 5), uniqueness and authenticity (hypothesis 8) showed that the impact on the definition. On the other hand charm and authenticity (hypothesis 6), uniqueness and familiarity (hypothesis 7) appeared to be not statistically significant. Finally, the relationship between familiarity, authenticity and empathy is as follows. First, the familiarity was found that it is affecting the authenticity (hypothesis 9) and for the consumer sympathetic (hypothesis 10) appeared to be not statistically significant. And the authenticity was found having a defined effect on the consumer sympathetic (hypothesis 11). It is really far more important to suggest an integrated approach to continue a sustainable and stable relationship by increasing consumer purchasing and empathy for the products and services of social enterprises. This study provides practical implications for marketing strategies of social enterprises, which can draw the consumer sympathy through the social contribution activities of social enterprise.

• Management & Information Systems Review
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• v.38 no.2
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• pp.1-28
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• 2019

The purpose of this study is to empirically analyze the effects of characteristics of Leader (authoritarian disposition, procedural justice, job instability) on the organizational commitment of subordinates through abusive supervision and leader-member exchange(LMX). To this end, a survey was performed on the employees under the manager level in a large enterprise in Korea. The results of this study are as follows. First, the Hypothesis 1, 2, and 3 that the characteristics of leader (authoritarian disposition, procedural justice, job instability) will make effects on the organizational commitment of subordinates through abusive supervision were adopted. Second, in the hypotheses that the characteristics of leader (authoritarian disposition, procedural justice, job instability) will make effects on the organizational commitment of subordinates through LMX, Hypothesis 4 of authoritarian disposition, and Hypothesis 6 of job instability were rejected, while only Hypothesis 5 of procedural justice was adopted, as it made effects on the organizational commitment of subordinates through LMX. Third, the Hypothesis 7, 8, and 9 that the characteristics of leader (authoritarian disposition, procedural justice, job instability) will make effects on the organizational commitment of subordinates through abusive supervision and LMX were all adopted. This study is meaningful, in that it identified the structural relationship that the characteristics of leader make effects on the organizational commitment of subordinates through abusive supervision and LMX. It is expected that the results of this study can be used as base materials for new studies on abusive supervision which have been made in diversified ways in Korea and overseas.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.164-173
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• 2002

The high-rise building construction field in the urban area is short of working space because it is surrounded by adjacent buildings and nearby roads. The insufficient space causes problems of interference and conflicts in transporting materials and working at the site. These problems can be resolved partly through the proper selection and layout of temporary facilities. A method proposed in this paper supports a decision-maker to evaluate and select the alternatives of temporary facilities plans by establishing and analyzing processes and influence factors of them. Knowledges considered in planning temporary facilities layout are structurized and a program is implemented for a field manager. Case studies are performed to evaluate the feasibility and applicability of the proposed method.

• Land and Housing Review
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• v.3 no.1
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• pp.23-32
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• 2012

The Schwabe's law explains the housing demand weighs more on demographic factors rather than on socio-economic factors as societies achieve higher level of economic development. Based on Schwabe's law, the present study constructs a hypotheses to analyze changes of housing demand with respect to housing tenure change in Seoul Metropolitan Area (SMA) during the periods of 1980 to 2005. To test the hypotheses, the authors take advantage of the Population and Housing Census 2% data from 1980 to 2005. The authors apply binary probit with decomposition method to verify our hypotheses. The authors found that the influence of socio-economic factors on housing tenure have been weakened in the housing market during the periods of 1980 to 2005. On the other hand, the relative influence of demographic factors have been strengthened in the housing market during the periods. The present study concludes that housing demand in the SMA have been dramatically changed from socio-economic characteristics to demographic factors to decide housing tenure during the periods, which confirms the hypotheses of the present study.

• Korean Journal of Social Welfare Studies
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• no.36
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• pp.253-280
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• 2008

Previous research indicates that depressive symptoms and alcohol consumption are highly correlated with each other. However, there is lack of consensus on the causal relationship between depressive symptoms and alcohol use. In order to address this limitation, this paper examines causal relationship between the two variables using non-recursive structural equation modeling, controlling sociodemographic and psycho-socio-behavioral variables. Data included 14,469 community dwelling individuals who participated in Korea Welfare Panel Study in 2006. Results showed that the effects of alcohol consumption on depressive symptoms was statistically significant, whereas the effects of depressive symptoms on alcohol consumption was not. Significant portions of the effects of psycho-socio-behavioral variables on depressive symptoms were indirect through their effects on alcohol consumption. Based on the results, implications for intervention and future research were discussed.

• Journal of the Korea Society of Computer and Information
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• v.11 no.6 s.44
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• pp.87-97
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• 2006

This study aims to identify the effect that the perceived usefulness and perceived ease of use have on learner flow in e-learning community. Based on literature review and Technology Acceptance Model(TAM), a potential model and five hypotheses were suggested. Questionnaire was carried out among 62 members of one e-learning community for preparatory teacher Cronbach alpha of the questionnaire was.88. The collected data were analyzed through correlation analysis and path analysis. The results of this research are as follows. Three hypotheses were adopted: Perceived usefulness will affect on attitudinal flow, Perceived ease of use will affect on attitudinal flow. and Attitudinal flow will affect on behavioral flow. Two hypotheses were rejected;. Perceived usefulness will affect on perceived ease of use and Perceived ease of use will affect on behavioral flow. The model revised through the results of path analysis had good-fitness. That is. overall fit measures (RMSEA, CFI. NNFI). indexes that show the suitability of the model were quite good. Findings of this study suggested the important strategies for designing e-learning community in order to promote learner flow.