• 제목/요약/키워드: Mixed Research Methodology

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가족연구를 위한 혼합방법론에 대한 고찰 (An Inquiry about Mixed Methodology for Family Studies)

  • 양성은
    • 대한가정학회지
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    • 제44권9호
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    • pp.1-8
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    • 2006
  • The purposes of the present article are to suggest pragmatism as offering a philosophical paradigm for mixed methods research, to explain the fundamental principles of mixed methodology, and to present examples of research for understanding how to apply it to family studies. Mixed methods research is the class of research where the researcher mixes or combines quantitative and qualitative techniques, methods, approaches, concepts or language into a single study. Mixed methodology has its roots in pragmatism, which is a new philosophical paradigm to criticize the traditional dualism and to endorse eclecticism and pluralism. The present article argues that mixed methods research has the potential to answer a broader and more complete range of research questions, and to provide strong evidence for a conclusion through convergence and corroboration of the qualitative and the quantitative methods.

병행적 혼합조사의 모드효과 분석 (Mode effects in concurrent mixed-mode surveys)

  • 백지선;민경아
    • 응용통계연구
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    • 제29권5호
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    • pp.787-806
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    • 2016
  • 사회환경 변화와 정보기술 발전에 따라 한 조사에 다양한 조사모드(survey mode)를 활용하는 혼합조사(mixed-mode survey)가 확대되고 있으며, 포함오차 축소, 비용절감, 응답률 향상 등의 장점을 가진다. 그러나 혼합조사는 선택효과와 측정효과가 혼재된 모드효과 발생으로 조사품질에 대한 우려가 있다. 통계개발원은 이러한 혼합조사의 모드효과를 파악하기 위하여 2014년에 병행적 혼합모드 시험조사를 수행하였다. 본 연구는 시험조사 자료에 대해 자기기입식 종이조사와 웹조사 간 모드효과를 선택효과와 측정효과로 분리하여 계량적으로 분석하였다. 선택계층의 효과를 분리하였을 때, 조사항목에 따라 과대 또는 과소 응답하는 측정효과가 존재하는 것을 확인하였다.

성인간호학회지(1989-2011)에 게재된 질적 연구의 동향 분석 (Analysis of Qualitative Research Published by Korean Journal of Adult Nursing (1989-2011))

  • 김영경;황선영;신수진
    • 성인간호학회지
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    • 제23권6호
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    • pp.633-641
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    • 2011
  • Purpose: This study was to examine the trend of qualitative study published by Korean Journal of Adult Nursing from 1989 to 2011, and to suggest future directions through identifying its strength and weakness. Methods: Ninety one published qualitative studies were analyzed focusing on research methodology and research themes using descriptive statistics. Results: During the last 22 years, the number of qualitative studies has rapidly increased and the methodology used to analyze qualitative data has been diversified. The most frequently used analytic method was a phenomenology (48.4%) and the frequency of conducting a content analysis has increased. The prevailing data collection settings were community (61.5%), followed by hospital (35.2%). Especially, many researches showed specific description on researcher's efforts to get validity and reliability of studies in individual studies presented within recent 10 years. However, it was noted that meta study using mixed methodology and secondary analysis of qualitative studies are rarely used and need to be facilitated. Conclusion: Nursing Researchers utilizing qualitative research should continuously make efforts to increase the validity and reliability of their studies and to find knowledges or strategies applicable to practice through using mixed methods or secondary analysis of individual studies.

Systematic Design of High-Resolution High-Frequency Cascade Continuous-Time Sigma-Delta Modulators

  • Tortosa, Ramon;Castro-Lopez, Rafael;De La Rosa, J.M.;Roca, Elisenda;Rodriguez-Vazquez, Angel;Fernandez, F.V.
    • ETRI Journal
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    • 제30권4호
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    • pp.535-545
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    • 2008
  • This paper introduces a systematic top-down and bottom-up design methodology to assist the designer in the implementation of continuous-time (CT) cascade sigma-delta (${\Sigma}{\Delta}$) modulators. The salient features of this methodology are (a) flexible behavioral modeling for optimum accuracy-efficiency trade-offs at different stages of the top-down synthesis process, (b) direct synthesis in the continuous-time domain for minimum circuit complexity and sensitivity, (c) mixed knowledge-based and optimization-based architectural exploration and specification transmission for enhanced circuit performance, and (d) use of Pareto-optimal fronts of building blocks to reduce re-design iterations. The applicability of this methodology will be illustrated via the design of a 12-bit 20 MHz CT ${\Sigma}{\Delta}$ modulator in a 1.2 V 130 nm CMOS technology.

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메타버스 이용자 경험요인이 만족도에 미치는 영향: 텍스트 마이닝과 계량 분석 혼합방법론 (Unraveling the relationship between the dimensions of user experience and user satisfaction in metaverse: A Mixed-methods Approach)

  • 정다현;김희웅;윤상혁
    • 한국정보시스템학회지:정보시스템연구
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    • 제32권3호
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    • pp.19-39
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    • 2023
  • Purpose This study aims to identify user experience factors that can enhance both metaverse utilization and satisfaction based on the honeycomb model. For this we presented two research questions: first, what are the experience factors of metaverse users? Second, do metaverse user experience factors impact satisfaction? Design/methodology/approach To address these questions, a mixed-methodology approach is employed, including text mining techniques to analyze online reviews and quantitative econometric analysis to reveal the relationship between user experience factors and satisfaction. A total of 69,880 reviews and ratings data were collected. Findings The analysis revealed eight metaverse user experience factors: entertainment, operability, virtual reality, immersion, economic activity, visual performance, avatar, and sociality, all of which were found to have a positive impact on user satisfaction.

온·오프라인 환경에서 소비자 감정 반응의 추출 및 구조화: 혼합감정을 중심으로 (Structuralization of Consumer's Emotional Responses in Online and Offline Environments: Focusing on Mixed Emotions)

  • 이은경;전중옥
    • 아태비즈니스연구
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    • 제13권2호
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    • pp.197-207
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    • 2022
  • Purpose - This study reestablished the concept of mixed emotions experienced in online and offline shopping environments, and structuralized emotional responses which manifest mixed emotions in each channel, and developed a method of measuring overall mixed emotions in consideration of the asymmetry of emotions. Design/methodology/approach - This study conducted a focus in-depth interview based on phenomenological research and exploratory preliminary survey using questionnaires. In addition, a survey was conducted as a quantitative survey. Findings - Qualitative and quantitative researches were conducted to derive major emotional responses items which manifest mixed emotions in online and offline shopping environments and determine differential emotional structure in each channel. As a result, it was confirmed that mixed emotions consisted of 5 factors in each channel and 21 emotional responses. In addition, a method of measuring overall mixed emotions considering the asymmetric of emotions was developed to prove the difference in behavioral responses. Research implications or Originality - This study is meaningful in that it helps companies efficiently manage and understand customer responses to their products by classifying and systemizing the emotional responses experienced by consumers in online and offline purchase and consumption situations according to the purchase environment.

다수의 분류 기법의 예측 결과를 결합하기 위한 혼합 정수 계획법의 사용 (Aggregating Prediction Outputs of Multiple Classification Techniques Using Mixed Integer Programming)

  • Jo, Hongkyu;Han, Ingoo
    • 지능정보연구
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    • 제9권1호
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    • pp.71-89
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    • 2003
  • 경영 분류 문제에 대한 많은 연구들은 여러가지 기법들간의 성과 비교에 대한 것이었지만, 각각의 연구들마다 가장 좋은 기법이 어떤 것인가에 대해서는 상이한 결론을 내고 있다. 다수의 분류 기법 중에서 가장 좋은 것을 사용하는 방법에 대한 대안으로,분류 기법을 통합하여 성과를 향상시키는 방법이 있다. 본 연구에서는 개별 분류 기법의 결과를 선형 결합하여 예측력을 높이는 방법을 제시하였다. 최 적 선형 결합 가중치를 계산하기 위해 혼합 정수 계 획 법을 사용하였다. 목적 함수로 사용한 오분류 비용의 최소화에서 오분류 비용은 부도 기업을 모형에서 정상으로 예측한 오류와 정상기업을 모형에서 부도 기업으로 예측한 오류의 합으로 정의하였다. 문제 풀이 과정을 단순화하기 위하여 본 논문에서는 절사점 (cutoff value)을 고정하였고, 경계 함수 (threshold function)를 배제하였다. 정수계획법의 계산을 위해 branch 8, bound 방법을 사용하였다. 선형 결합에 의한 모형의 예측력이 개별 기법에 의해 구축된 모형의 예측력을 상회하였고, 그 차이가 통계적으로도 유의하였다.

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내공생 진화알고리듬을 이용한 혼합모델 조립라인의 작업할당과 투입순서 결정 (Balancing and Sequencing in Mixed Model Assembly Lines Using an Endosymbiotic Evolutionary Algorithm)

  • 김여근;손성호
    • 한국경영과학회지
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    • 제26권4호
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    • pp.109-124
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    • 2001
  • This paper presents a new method that can efficiently solve the integrated problem of line balancing and model sequencing in mixed model assembly lines (MMALs). Line balancing and model sequencing are important for an efficient use of MMALs. The two problems of balancing and sequencing MMALs are tightly related with each other. However, In almost all the existing researches on mixed-model production lines, the two problems have been considered separately. In this research, an endosymbiotic evolutionary a1gorithm, which is a kind of coevolutionary a1gorithm, is adopted as a methodology in order to solve the two problems simultaneously. This paper shows how to apply an endosymbiotic evolutionary a1gorithm to solving the integrated problem. Some evolutionary schemes are used In the a1gorithm to promote population diversity and search efficiency. The proposed a1gorithm is compared with the existing evolutionary algorithms in terms of solution quality and convergence speed. The experimental results confirm the effectiveness of our approach.

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현대 금속공예에서의 형질변환에 관한 연구 (A Study of metamorphosis in Contemporary Metal-craft)

  • 임옥수
    • 디자인학연구
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    • 제13권4호
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    • pp.43-56
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    • 2000
  • 본 논문은 현대금속공예에서 다양하게 사용되는 특수한 기법중의 하나인 형질변환의 다양한 사례를 연구하는 것을 주요골자로 하고 있다. 이러한 형질변환은 타장르에서도 활발히 연구되고 있는 부분이기는 하나, 금속공예에 있어서 실제적으로 적용되고 다양한 양태로 실험되고 있는 사례는 타장르에서 찾을 수 없는 부분이기도 하다. 이러한 형질변환에 대하여 그 가치를 따져보자면 금속공예가 현대화되기 이전부터 조금씩 다루어온 것이긴 하지만, 현대에 이르러 물질 자체의 이면적인 의미와 상징성 은유성 등을 다루기 시작하는 등 그 의미에 있어서의 차연화가 이루어지는 해체주의가 대두되면서 더욱 정당성이 부여되어 실험의 깊이와 폭이 한층 더 깊어졌다. 형질변환을 위한 특수한 기법에는 목목금기법, 강상조직기법, 융합기법, 전해주조기법, 특수한 형질변환 혼합매체의 사용 등이 있으며, 이러한 연구는 합금법과 함께 더욱 진전이 이루어지고 있다. 나아가서, 금속공예의 표현의 가능성을 더욱 광범위하게 하고 있다.

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신경망모형을 이용한 시간적 분해모형의 개발 3. 혼합자료의 적용 (Development of Temporal Disaggregation Model using Neural Networks 3. Application of the Mixed Data)

  • 김성원
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2009년도 학술발표회 초록집
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    • pp.1215-1218
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    • 2009
  • The goal of this research is to apply the neural networks models for the disaggregation of the pan evaporation (PE) data, Republic of Korea. The neural networks models consist of generalized regression neural networks model (GRNNM) and multilayer perceptron neural networks model (MLP-NNM), respectively. The disaggregation means that the yearly PE data divides into the monthly PE data. And, for the performances of the neural networks models, they are composed of training and test performances, respectively. The training data consist of the mixed data The mixed data involves the historic data and the generated data using PARMA (1,1). And, the testing data consist of the only historic data, respectively. From this research, we evaluate the impact of GRNNM and MLP-NNM for the disaggregation of the nonlinear time series data. We should, furthermore, construct the credible data of the monthly PE data from the disaggregation of the yearly PE data, and can suggest the methodology for the irrigation and drainage networks system.

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