• 제목/요약/키워드: hypothesis' definition

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유사 경험의 제공이 귀추에 의한 가설 설정에 미치는 효과 (The Effects of Offering Similar Experiences for Hypothesis-Generation Based on Abduction)

  • 박은미;강순희
    • 한국과학교육학회지
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    • 제26권3호
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    • pp.356-366
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    • 2006
  • 이 연구는 유사 경험의 제공이 귀추에 의한 가설 설정에 미치는 영향을 알아보기 위하여 실시되었다. 서울 시내 중 고등학생 278명을 대상으로, 학생들에게 미지의 현상을 관찰하게 한 후 인과적 의문점을 제시하도록 하였다. 미지의 현상을 관찰하였을 때, 전체 학생의 79.9%에 해당하는 많은 학생들이 인과적 의문점을 제기하였다. 인과적 질문을 제기하는 빈도는 인지 수준에 따라 유의미한 차이가 나타났다(p<.05). 이어서 새로운 현상에 대하여 예측 가설을 설정하도록 한 후, 새로운 상황과 유사한 다양한 실험 상황을 제공한 후에 다시 가설을 설정해 보도록 하였다. 처음에는 대부분의 학생들이 실험 상황을 단순히 기술한 것을 가설로 제안하였으나, 학생들에게 다양한 유사경험을 제공한 후에 실험 상황에 대하여 다시 가설을 설정해 보도록 하였을 때는 변인을 찾고, 변인간의 관계를 과학적으로 설명한 학생들이 늘어났다. 다양한 유사 경험이 제공되기 전후에 학생들의 가설 설정에 차이가 있는지 알아보기 위하여 빈도 분석을 실시하였을 때, 유의미한 차이가 나타났다(p<.001). 이러한 결과는 유사 경험의 제공이 귀추에 의한 가설 설정에 도움을 준다는 사실을 알려준다. 또한 인지 수준에 따라 가설 설정에 차이가 있는지 알아보기 위하여 빈도 분석을 실시하였으며, 그 차이는 유의미하였다(p<.05).연구 결과로 보아 중 고등학교 현장에서 가설 설정과 관련된 수업을 실시하고자 할 때는 학생들의 귀추적 사고에 도움을 줄 수 있는 유사 경험의 제기 단계가 필요할 것으로 판단된다.

초등 과학 교과서에서 창의적 문제해결력 분석특 개발과 적용 - 5, 6학년 1학기 교과서를 중심으로 - (Development and Application of a Creative Problem Solving Analysis Framework for Elementary School Science Textbook - Focused on the 5th and 6th grade 1st semester -)

  • 김현정;최선영;강호감
    • 한국초등과학교육학회지:초등과학교육
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    • 제22권2호
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    • pp.163-172
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    • 2003
  • The purpose of this study was to develop the analytic framework of Creative Problem Solving(CPS) for elementary school science textbook. For this purpose, we developed the framework based on the theories of problem, definition of problem solving and various kinds of CPS model. The six elements of the framework for content analysis were extracted through theoretical examination: problem introduction, problem statement, solution thinking, formulating hypothesis, testing hypothesis, and assessment. The developed framework was applied to the extbooks for the 5th and the 6th grades 1st semester in elementary science textbook of the 7th national curriculum. The results of this study were as follows: 1. The scores of the framework for content analysis in the 5th grade were slightly higher than those of the 6th grade, but there were no significant difference. 2. The comparison of the scores between the elements of the framework was found that the scores on the elements of testing hypothesis and formulating hypothesis were higher than those of the other elements. 3. The comparison of the scores between the units was found that the scores of the framework for the 9th unit (“trip of water”) of the 5th grade were higher than those of the other units, which were presented lower level than 1.0 (50.0%) score of the framework. 4. The comparison of the scores between the intensive course and the regular coures in the 6th grade textbook was showed that the scores on the intensive course were higher than the basic course. In conclusions, it was found that the problem introduction and problem statement in the textbook should be amended, and that various information and activities should be presented in the textbook.

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정신의학의 진화생태학적 연구 시 고려사항 (Considerations about Evolutionary Ecological Study of Psychiatry)

  • 박한선
    • 인지과학
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    • 제30권4호
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    • pp.199-217
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    • 2019
  • 정신장애에 관한 진화 연구는 다른 의학 연구에 비해 어렵다. 정신장애는 신체 질병에 비해 근연원인(proximate causation)이 불명확하고, 다양한 요인이 관여하며, 원인과 결과를 구분하기 어렵고, 실험적 연구를 수행하는 것도 쉽지 않기 때문이다. 이러한 난점에도 불구하고 우선 환원 모델을 이용하여 정신장애에 관한 진화 가설을 수립하고 이를 바탕으로 실제 데이터를 실증해나가는 방법이 가능할 것이다. 본고에서는 이러한 입장에서 생태학적 접근 방법을 진화정신의학 연구에 적용할 때 필요한 몇 가지 개념 정의에 대해 논의하고자 한다. 인간의 정신병리를 진화적으로 탐구할 때 적합한 설명의 수준, 연구 대상의 범위를 논의하고, 행동과 기능, 역기능의 개념 정의, 연구 대상으로서 적절한 선택의 층위에 대하여 다루고자 한다.

해기사의 자기효능감이 직무만족과 자기개발에 미치는 영향 (The Effect of Self-Efficacy of Marine Officer on Job Satisfaction and Self-Development)

  • 최태정;백인흠;원효헌;박종운
    • 수산해양교육연구
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    • 제27권4호
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    • pp.1136-1146
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    • 2015
  • The purpose of this study was to clarify the meaning of marine officer's self-efficacy, job satisfaction, definition of self-development and factors of determination. It shows that how their self-efficacy affects job satisfaction, self-development and that how their job satisfaction affects self-development. To achieve the purpose of the research, checked the definition and factors of marine officer's duty, self-efficacy, job satisfaction and self-development. Furthermore, cultivated a research model about the factors to influence between self-efficacy and job satisfaction, self-efficacy and self-development, job satisfaction and self-development. A result of hypothesis test by regression analysis is that 11 hypotheses were adopted among 17, and the rest of them were dismissed. The contents of hypotheses were set as follows; self-efficacy and internal job satisfaction, self-efficacy and external job satisfaction, self-efficacy and self-development, job satisfaction and self-development.

The Influence of Media Use Characteristics on Social Relationships and School Adjustment through Adolescents' Self-Efficacy and Commitment

  • Kim, Worl-soo;Lee, Sin-Bok
    • International journal of advanced smart convergence
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    • 제10권1호
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    • pp.38-55
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    • 2021
  • Recently, the use of media has become a daily life due to Covid-19, and education using media has expanded for teenagers. The purpose of this study is to empirically verify how media usage characteristics affect social relationships and school adaptation through the self-efficiency and immersion of teenagers at the youth education site. This study was collected and distributed questionnaires to 250 high school students in Seoul from November 14 to November 21, 2020. The results of the study were derived with a total of 249 questionnaires, excluding one missing questionnaire, and the hypothesis was verified using a Covariance Structure Analysis. Research has shown that, first, the existing, individual, and utility among the characteristics of using youth media have a significant effect on self-efficiency, respectively. Second, only entertainment among the characteristics of youth media use was found to have a significant effect on immersion. Third, immersion has a significant definition effect on school adaptation, and self-efficiency has been shown to have a definition impact on social relationships. Based on this study, we believe that it will be used as a fundamental resource for the development of youth media usage and policy direction in the age of the ever-changing Covid-19.

언어상대성 원칙의 역사 인식론적 토대 -문화 언어학을 위한 서설- (Epistemologico-Historic Foundations of Linguistic Relativity)

  • 김성도
    • 인문언어
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    • 제2권1호
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    • pp.7-42
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    • 2002
  • This paper reexamines ideas about linguistic relativity in the light of new interest in the theoretical climate. The original idea is based on the incommensurability of the semantic structures of different languages. On this view, language, thought, culture are deeply interconnected, so that each language might be associated with it a distinctive world view. Throughout this work I utilize the historico-epistemological standpoint to dissect the conceptual structure of this principle. In the introduction I will of for a justification of choice of the theme. Section 1 will address some essential definition of the linguistic principle and insist on the necessity to elaborate a typological spectrum of relativism and universalism. In the second section some important landmarks of linguistic relativity were marked from Plato to Humboldt via Condillac and Herder. 1 will subdivide the relativity hypothesis into 3 theses which are interlated. In the final section the epistemological structure of the linguistic principle will be analysed in some detail by providing my exposition of Sapir-Whorf hypothesis. By way of conclusion I will present the works of Wierzbicka who demonstrated the lexicons of different languages suggest different conceptual universes. By rejecting analytical tools derived from the English language she proposed instead a natural semantic metalanguage based on lexical universals, which is made up of universal semantic primitives. In this paper we attempted to construct a general problematics of linguistic relativity, focolizing on the Sapir-Whorf hypothesis. We devided this very problematic question into its ontological and epistemological dimensions. In particular the ambivalance of Whorf's relativity is discussed in some detail. Also, an archeological survey of this subtle question on the relation between language, thinking and culture was provided. (from Aristotle to Humboldt, via Condillac and Nitzche). In conclusion this investigation underlines the necessity of preparing the cultural linguistics to enlarge the scope of contempory linguistics.

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From Corridors to Intercity Networks : The Role of the Emerging Urban System in Building Regional Networks in Northeast Asia

  • Terry G. McGee;Xiaomin Pang;Shin, Dong-Ho
    • 지역연구
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    • 제15권2호
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    • pp.21-38
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    • 1999
  • This paper is concerned with analyzing the role of Northeast Asia intercity networks in Northeast Asia in creating regional networks. For the purpose of this paper, we have followed Choe's (1996) definition of Northeast Asia which includes the Russian Fat East, the Northeast region of China, South Korea, North Korea and Japan. The central hypothesis of the paper is that the geopolitical conditions of Northeast Asia compared for example with Southeast Asia, favor bilateral rather than multilateral linkages between nation states. In these circumstances, it is our hypothesis that cities will play an important role in developing a "local image" of regio-nalism and intercity networks. In order to analyze this hypothesis, the paper is divided into three parts. Part A analyzes the emerging urban system of the Northeast Asia region using Choe's concept of the BESETO corridor and updating his data from the late 1980s to the mid 1990s just prior to the financial crisis. This analysis is further supported by the analysis of economic and transportation linkages within the urban system of the region with some discussion of emerging urban nodes. Part B looks at the specific case studies of the region including the Bohai Sea region, the Japan Sea and case studies of Sapporo, the Japan Sea and case studies of Sapporo, Pusan and Shandong province cities. Part C summarizes this preceding analysis and that the development of regionalism and servicing urban nodes is move likely to emerge from a myriad of linkages developed between the region's cities than from a supra-regional role of nation states. This finding has important implications for regional policy formation suggesting that there should be considerate national support for international linkages between cities.en cities.

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The Effect of eWOM Information Characteristics and Brand Community Experience Value on Brand Trust, Conversion

  • HAN, Sang-Seol
    • 산경연구논집
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    • 제13권4호
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    • pp.35-49
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    • 2022
  • Purpose - According to the recently changing consumer smart environment and consumer decision-making process, this study investigates the structural relationship between electronic(online) WOM information characteristics and brand community experience value types on specific brand reliability and brand transformation. In particular, the characteristics of word of mouth information and the experience value of brand community users were divided into detailed fac tors and approached. Methodology - In order to proceed with this study, we review previous studies and setting hypotheses. The hypothesis was verified through a survey that was conducted for the consumers with online consumption activities in less than six months. With reference to previous studies, operational definition was made for the questionnaire design. In order to verify the hypothesis, 282 people were statistically analyzed through the survey This data were used for AMOS for confirm hypothesis established. Results - eWOM information characteristics were classified into usefulness, timeliness and un-bias, and online community experience values were classified into interaction, playfulness, and virtuality. In addition, it is to investigate the relationship between the brand reliability and user's experience value in brad community. The main results are as follows. The first result was that usefulness and un-bias, which are the eWOM information characteristics had a positive effect on forming brand reliability. However, the factor of timeliness did not affect brand reliability. Second, in terms of user experience value and brand reliability in the brand community. It was fo und that experience values such as interaction, playfulness, and vituality all had a positive influence on brand reliability. Third, it was found that brand reliability has a positive influence on the on-line conversion activity of users. Conclusions - Through this study, the field of online consumer behavior research is expanding, and this study suggested that careful management is necessary according to the type or characteristics of eWOM information. Additionally, it presents the importance of the user's empirical value in the brand community influencing brand attitude and reliability. In practice, the implementation of the marketing communication mix in digital marketing has recently been underway to enhance the conversion behavior of users. At this level, it also reveals the preceding factors that increase user conversion behavior.

정신 박약 아동 어머니의 스트레스와 적응에 관한 구조 모형 (A Structural Model for Maternal Adaptation and Family Stress in Families with Mentally Retarded Children)

  • 이경희
    • 대한간호학회지
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    • 제22권4호
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    • pp.476-490
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    • 1992
  • This study was designed to develop and test a structural model for maternal adaptation and family stress in families with mentally handicapped children. A hypothetical model was constructed on the basis of the family stress theory developed by McCubbin etc. The model included 6 theoretical concepts and 11 paths. For the purpose of the model testing, empirical data were collected from May to August, 1992. The subjects of the study constituted 190 mothers of children in five special schools and one private institute in Seoul and Choong Nam. An SPSS PC+ and PC-LISREL 7.13 computer programs were used for descriptive and covariance structure analysis. The results of the study were as follows. (1) The hypothetical model showed itself a good fit to the empirical data [Chi - square=18.35(df=7, P=0.005), Goodness of Fit Index=0.991, Adjusted Goodness of Fit Index=0.959, Root Mean Square Residual=0.042), Non Normed Fit Index=0.90, Normed Fit Index=0.96]. (2) The results of Hypothesis testing indicated : 1) Social support(${\gamma}$$_{11}$=.238, T=2.352), Family functioning(${\gamma}$$_{12}$=.729, T=5.957) and Family life event stress(${\gamma}$$_{13}$=.125) had direct effects on situational definition. 2) Life event stress(${\gamma}$$_{23}$=.319, T=3.872) had direct effects on the effect of the handicapped child on the family. Family functioning(${\gamma}$$_{22}$=-.245) and situational definition($\beta$$_{21}$=-.335, T=3.227) had direct effects on the effect of the handicapped child on the family. 3) Situational definition($\beta$$_{31}$=-.273, T=3.493), family life event stress (${\gamma}$$_{33}$=.124, T=2.169) and the effect of the handicapped child on the family($\beta$$_{32}$=.264, T=-3.227) showed the direct effect on the maternal adaptation. The model was supported by the empirical data. Thus it was suggested that the model could be applied to family nursing care with the families with the mentally handicapped. The construction and testing of the comprehensive model seem to be the first trial in Korea.a.a.a.

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Operational Definitions of Colorectal Cancer in the Korean National Health Insurance Database

  • Hyeree Park;Yu Rim Kim;Yerin Pyun;Hyundeok Joo;Aesun Shin
    • Journal of Preventive Medicine and Public Health
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    • 제56권4호
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    • pp.312-318
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    • 2023
  • Objectives: We reviewed the operational definitions of colorectal cancer (CRC) from studies using the Korean National Health Insurance Service (NHIS) and compared CRC incidence derived from the commonly used operational definitions in the literature with the statistics reported by the Korea Central Cancer Registry (KCCR). Methods: We searched the MEDLINE and KoreaMed databases to identify studies containing operational definitions of CRC, published until January 15, 2021. All pertinent data concerning the study period, the utilized database, and the outcome variable were extracted. Within the NHIS-National Sample Cohort, age-standardized incidence rates (ASRs) of CRC were calculated for each operational definition found in the literature between 2005 and 2019. These rates were then compared with ASRs from the KCCR. Results: From the 62 eligible studies, 9 operational definitions for CRC were identified. The most commonly used operational definition was "C18-C20" (n=20), followed by "C18-C20 with claim code for treatment" (n=3) and "C18-C20 with V193 (code for registered cancer patients' payment deduction)" (n=3). The ASRs reported using these operational definitions were lower than the ASRs from KCCR, except for "C18-C20 used as the main diagnosis." The smallest difference in ASRs was observed for "C18-C20," followed by "C18-C20 with V193," and "C18-C20 with claim code for hospitalization or code for treatment." Conclusions: In defining CRC patients utilizing the NHIS database, the ASR derived through the operational definition of "C18-C20 as the main diagnosis" was comparable to the ASR from the KCCR. Depending on the study hypothesis, operational definitions using treatment codes may be utilized.