• 과학교육연구지
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• 제42권2호
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• pp.165-181
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• 2018

본 연구에서는 PISA 2015의 과학 영역 결과를 토대로 우리나라 학생의 성취수준 집단 및 성별 집단에 따른 다양한 교육맥락 변인의 특성과 학생들의 성취에 미치는 영향력을 비교 분석하였다. PISA 2015는 과학이 주영역이었기 때문에 과학 영역과 관련된 교수 학습 변인 및 정의적 특성 관련 변인들이 다수 포함되었다. 다집단 구조방정식 모형을 통해서 분석한 결과, 학생들의 수업 환경, 교사의 피드백 등과 같은 교수 학습 특성은 과학 교과의 정의적 특성에 긍정적인 영향을 미치는 것으로 나타났으며, 정의적 특성을 매개로 과학 성취에도 간접적으로 통계적으로 유의하게 정적인 영향을 미치는 것이 확인되었다. 특히 교사의 지지와 맞춤식 수업 등의 교수 방법은 성취수준이 낮은 집단의 정의적 특성향상에 상대적으로 효과가 있었다. 또한 성취수준 집단 간에는 차이가 나타났으나, 성별 집단에서는 차이가 발생하지 않았다. 따라서 학생들의 인지적, 정의적 성취를 향상시키기 위해서 적절한 교수 학습 환경과 전략을 제공하는 것에 대해 지속적으로 강조할 필요가 있을 것이다. 연구 결과를 바탕으로 한 우리나라 교육 개선을 위한 시사점과 학생들의 인지적, 정의적 특성을 향상할 수 있는 방안이 논의되었다.

• 한국경영과학회지
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• 제40권3호
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• pp.73-95
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• 2015

Firms have reexamined and restructured their supply chain based on a long-term and partnership perspective as a firm's competitive advantage increasingly relies on its supply chain capability. A number of scholar works has provided evidence to support the positive effects of supply chain collaboration; however, the relationship between collaboration and performance is still inconclusive. This study refuses to have blinded faith on supply chain collaboration, but rather this paper suggests that the contribution of collaboration to supply chain performance improvement can be limited and vary along the contextual characteristics of a buyer-supplier relationship. Moreover, we argue that the relationship between supply chain collaboration and performance can be curvilinear. This paper provides and test hypotheses regarding the relationship between supply chain collaboration and performance. By using data of the Manufacturing Panel Survey (MPS), this study empirically validates the hypotheses. Overall, the results of the study support our hypotheses about a limited contribution of supply chain collaboration to manufacturing performance, which is opposite to a conventional expectation. Particularly, the effects of supply chain collaboration differ depending on the dimensions of performance such as customer satisfaction, quality, cost, delivery, and flexibility as well as the dependency in the buyer-supplier relationship. Moreover, the results of the study indicate that supply chain collaboration and performance may have curvilinear relationships in a certain context. Through a comprehensive model and empirical evidence, this study presents a better understanding of supply chain collaboration and provokes an open discussion about the effects of collaboration. This study also provides insightful implications for managers of buyers as well as suppliers who wish to foster stronger supply chain performance via a deep buyer-supplier relationship and collaboration.

• 정보화정책
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• 제31권1호
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• pp.32-52
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• 2024

이 연구는 가상현실 에이전트 외국어 강사를 활용한 외국어 학습 효과를 검증하는 것을 목표로 한다. 외국어 학습맥락을 고려해 가상현실 에이전트를 원어민과 비원어민으로 구분해 이를 실험자 간 요인으로, 에이전트의 역할은 교사와 판매원으로 나누어 실험자 내 요인으로 설정한 후, 몰입형 가상환경 콘텐츠를 직접 개발하고, 2×2 혼합요인설계를 하여 실험을 진행했다. 자발적으로 참여한 72명의 대학생을 대상으로 실험을 한 결과, 학습만족감, 기억, 회상에서 에이전트의 원어민 여부와 역할간 상호작용 효과가 통계적으로 유의미하게 나타났으나, 학습자신감, 프레즌스는 상호작용 효과와 주효과 모두에서 유의미한 차이를 보이지 않았다. 가상환경에서의 맥락적 학습이 학습 효과와 만족감을 증진한다는 결과와 에이전트의 역할이 학습자의 기억에 영향력을 미친다는 결과는 가상현실 에이전트 외국어 강사를 활용한 외국어 학습 효과의 유효성을 증명한 것으로, 가상현실 에이전트를 활용한 다양한 처치 결과가 학습자의 인지 및 정서적 반응에 긍정적 효과를 줄 수 있다는 중요한 이론적, 실증적 함의를 제공한다.

• Human Ecology Research
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• 제55권3호
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• pp.321-336
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• 2017

This study examines the effect of family resources on low-income families by exploring their holistic experience of poverty to the formation of resilience. A grounded theory approach is utilized to structure process from their experience of poverty as well as the use of social welfare services to the formation of resilience. This study targets 17 families involved in the pilot project for the beneficiaries of an asset building program in Seoul. In accordance with open coding and a paradigm model by the result of axial coding, 86 concepts, 23 sub-category, and nine categories are produced. These categories are classified into the causal condition (a tough life due to poverty), contextual condition (being the recipient of an asset building program), intervening conditions (interpersonal resources and effects of accumulated time or experience), central phenomenon (a will to live and overcome poverty), actions/interactions (active behavior and change of attitude), and consequences (change of asset levels and increased efficacy in their lives). The integrating categories identify the core category as 'the process of making a resilient life out of the power to live' and a final process model is organized. The results suggest crucial implications to develop comprehensive policies to address poverty issues for low-income families with a strength-based approach.

• 대한가정학회지
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• 제36권11호
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• pp.91-101
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• 1998

The purpose of this study was to identify which of the variables were associated with ineffective parental child-rearing practices and to examine the effects of cumulative risk factors on ineffective child-rearing practices. The subjects for this study consisted of 120 mothers and 120 fathers of two to six year old children attending a university child development laboratories. Self-report questionnaire were used to collect data on the following variables: 1) family backgrojnd characteristics; 2) child temperament; 3) quality of life; 4) social support; 5) intergenerational trasmission of parenting; and 6) parental disciplinary practices. Descriptive analysis, t-test, and chi-square analyses were used for data description and analysis. The major findings were as follows: 1) Mothers who perceived the child as being less emotional, more soothable, and who had higher levels of marital satisfaction and job satisfaction engaged in more effective child-rearing practices. 2) Fathers who perceived the child as being less emotional, and who have boys provided more effective child-rearing practices. 3) For both mothers and fathers, parents with higher levels of quality life, social support, and family income exhibited more effective child-rearing practices. 4) Parents exposed to several risk factors were much more likely to exhibit ineffective child-rearing practices than parents exposed to no risk factors. The results of this study indicate that the characteristics of the child, parent, and contextual factors all contribute to the parental child-rearing pracitices.

• 말소리와 음성과학
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• 제3권4호
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• pp.71-81
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• 2011

This paper investigated how prosodic position and word type affect the phonetic structure of Korean coronal stops. Initial segments of prosodic domains were known to be more strongly articulated and longer relative to prosodic domain-medial segments. However, there are few studies examining whether the properties of prosodic domain-initial segments are affected by the information content of words (real vs. nonsense words). In addition, since the scope of domain-initial effect was known to be local to the initial consonant and the effects on the following vowel have been found to be limited, it is thus worth examining whether the prosodic domain-initial effect extends into the vowel after the initial consonant in a systematic way across different prosodic domains. The acoustic properties of Korean coronal stops (lenis /t/, aspirated /$t^h$/, and tense /t'/) were compared across Intonational Phrase, Phonological Phrase and Word-initial positions both in real and nonsense words. The durational intervals such as VOT and CV duration were cumulatively lengthened for /t/ and /$t^h$/ in the higher prosodic domain-initial positions. However, tense stop /t'/ did not show any variation as a function of prosodic position and word type. The domain-initial lenis stop showed significantly longer duration in nonsense words than in real words. But the prosodic domain-initial effect was not found in the properties of F0 and [H1-H2] of the vowel after initial stops. The present study provided evidence that speakers tend to enhance speech clarity when there is less contextual information as in prosodic domain-initial position and in nonsense words.

• 한국시스템다이내믹스연구
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• 제10권2호
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• pp.103-120
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• 2009

Using various data derived from the regional innovation projects in the IT and BT-sectors within Chungbuk Province, this study tries to observe formation processes of network connecting structure and their spill-over effects. Considering the dynamic nature of key issues, it applies both social network analysis and causal loop methods. After a series of simulation exercises, we find that so-called extroverted regional innovation projects, that is, ones financially supported by the central government, reveal a higher tendency in the centrality, heavily depending on a handful of well reputed organizations. It is quite similar to the reinforcing mechanism, resulting in the rich-get-richer and the poor-get-poorer. Compared with the existing documents, nonetheless, it shows relatively weak in the mechanism strength, implying the fact that regional innovation projects have significantly contributed to ameliorating the unequal distribution of innovation organizations within Chungbuk Province. On the other hand, this study concludes that all the brokerage organizations related to the regional innovation projects have settled in Chungbuk Province. Whereas the Capital Region-based organizations present a higher tendency in the knowledge-network, it seems that the regional innovation projects have significantly contributed to upgrading direct and indirect competitiveness of the local organizations.

• 대한전기학회논문지
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• 제40권8호
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• pp.782-791
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• 1991

In the fields of pattern recognition such as speech recognition, several new techniques using Artifical Neural network Models have been proposed and implemented. In particular, the Multilayer Perception Model has been shown to be effective in static speech pattern recognition. But speech has dynamic or temporal characteristics and the most important point in implementing speech recognition systems using Artificial Neural Network Models for continuous speech is the learning of dynamic characteristics and the distributed cues and contextual effects that result from temporal characteristics. But Recurrent Multilayer Perceptron Model is known to be able to learn sequence of pattern. In this paper, the results of applying the Recurrent Model which has possibilities of learning tedmporal characteristics of speech to phoneme recognition is presented. The test data consist of 144 Vowel+ Consonant + Vowel speech chains made up of 4 Korean monothongs and 9 Korean plosive consonants. The input parameters of Artificial Neural Network model used are the FFT coefficients, residual error and zero crossing rates. The Baseline model showed a recognition rate of 91% for volwels and 71% for plosive consonants of one male speaker. We obtained better recognition rates from various other experiments compared to the existing multilayer perceptron model, thus showed the recurrent model to be better suited to speech recognition. And the possibility of using Recurrent Models for speech recognition was experimented by changing the configuration of this baseline model.

• 한국지구과학회지
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• 제22권3호
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• pp.248-257
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• 2001

7차 과학과 교육과정은 인간중심 교육철학이 도입되었다는 특성을 갖고 있다. 인간중심 교육과정은 학문중심교육과정보다 학습자의 경험을 강조하는 학습자 중심의 교육을 표방하고 있다. 본 연구에서는 우리 나라 과학과 교육과정의 개편 과정에 표출된 배경, 성격 그리고 목표에서 7차 과학과 교육과정의 의의를 찾고 그 과제와 전망을 논의하였다. 7차 과학 교육과정은 학습자의 경험을 강조하는 인간중심 교육과정으로서 구체적인 교육활동이 실생활 소재로 이루어져서 적용되어야함을 강조하고 있다. 이에 관련된 성과를 위해서는 현대과학이 가지는 사회적인 요소를 고려한 과학의 본성에 대한 교사교육이 필요하며, 실생활 맥락을 교육적이고 인식론적인 관점에서 연구하여 과학과 일상생활 맥락의 차이에 대한 적절한 교육적 구명이 요청된다.

• 한국간호교육학회지
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• 제18권1호
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• pp.81-94
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• 2012

Purpose: Virtual worlds are emerging in health care as an innovative way of helping clients take responsibility for and promote their own care. Yet, the concept of health promotion education in this environment has not been elucidated. Therefore, we undertook a concept analysis to discover the underlying attributes and contextual basis to generate a conceptual understanding of virtual worlds in the context of health promotion education. Methods: Using Rodgers' evolutionary view of concept development, we analyzed literature on virtual worlds that describe their use to discover critical attributes, antecedents, and consequences of this phenomenon. Eleven studies matching inclusion criteria were reviewed. Results: Analysis of the literature highlighted three areas of important domains: user, simulated environment, and education. This concept analysis extends our understanding of a virtual world for health promotion education. Conclusion: This study may help anticipate future trends in the use of virtual worlds in the context of health promotion education, serving as a stepping-stone for further research on this aspect of the study. The next step should focus on the development of an evaluation tool that can measure the factors identified in this analysis to determine their effects on outcomes and environmental interactions.