• 제목/요약/키워드: characteristics of hypothesis

검색결과 802건 처리시간 0.023초

문제발견 및 가설설정 능력 신장 과학영재교육프로그램 개발: 멘델의 과학적 사고과정 적용 (Improvement of Students' Problem Finding and Hypothesis Generating Abilities: Gifted Science Education Program Utilizing Mendel's Law)

  • 김순옥;김봉선;서혜애;김영민;박종석
    • 영재교육연구
    • /
    • 제21권4호
    • /
    • pp.1033-1053
    • /
    • 2011
  • 본 연구는 역사적 발견을 이루어낸 과학자 가운데 멘델(Mendel, Gregor Johann, 1822-1884)의 과학적 사고과정을 활용하여 과학영재교육프로그램을 개발하고, 이 프로그램을 학습한 학생들의 문제발견 및 가설설정 능력의 변화를 측정하여, 프로그램의 효과성을 검증하는데 목적을 두었다. 이를 위해 먼저, 멘델이 유전법칙을 확립하는 과정에서 나타낸 과학적 사고과정을 분석하여 특징적 탐구요소를 추출하였다. 추출된 탐구요소 가운데 문제발견과 가설설정을 적용한 프로그램으로서 완두를 활용한 모의실험탐구중심의 과학영재교육프로그램을 개발하였다. 개발한 과학영재교육프로그램은 대학교 부설 과학영재교육원 소속 중학교 1, 2학년 학생 19명(남학생 11명, 여학생 8명)을 대상으로 적용되었다. 적용한 결과, 학생들은 문제발견 능력의 하위요소 융통성, 정교성, 독창성이 신장되었고, 가설설정 능력의 논리성도 신장되었다. 이에 개발된 과학영재교육프로그램은 중학교 과학영재로 선발된 학생들의 문제발견 및 가설 설정 능력을 향상시키는데 효과가 있는 것으로 고찰되었다.

픽토리얼 타이포그래피가 사용된 인쇄 광고의 커뮤니케이션 효과 연구 (Communication Effects of Print Ad Having Pictorial Typography)

  • 이광숙;곽보선
    • 한국인쇄학회지
    • /
    • 제30권2호
    • /
    • pp.13-22
    • /
    • 2012
  • This research attempts to analyze communication effects of print ad having pictorial typography. 150 Questionnaires were distributed to respondents staying Daejeun City and 148 copies were retreated for five days from April 22nd to 26th, 2012. Frequency analysis, factor analysis, Cronbach's alpha for reliability analysis were utilized for data analysis with SPSS 12.0. For testing hypothesis, regression analysis was used. As result of testing hypothesis, 'informative, beneficial, creative, reliable' were partially significant to attitude towards print ad having pictorial typography. That means 'creative' and 'reliable' were insignificant, while 'informative' and 'beneficial' are significant. Variable of the most influencing on attitude towards advertising is 'informative.' 'Informative, beneficial, creative, and reliable' were partially significant to brand attitude, too. That means 'beneficial' and 'creative' were insignificant, while 'informative' and 'reliable' were significant. Variable of the most influencing on brand attitude was 'reliable.' Therefore, to enhance communication effect of print ad having pictorial typography, 'informative' and 'reliable' are most significant variables.

Viterbi 탐색 특성을 이용한 미등록어휘 제거에 대한 연구 (A Study on OOV Rejection Using Viterbi Search Characteristics)

  • 김규홍;김회린
    • 대한음성학회:학술대회논문집
    • /
    • 대한음성학회 2005년도 춘계 학술대회 발표논문집
    • /
    • pp.95-98
    • /
    • 2005
  • Many utterance verification (UV) algorithms have been studied to reject out-of-vocabulary (OOV) in speech recognition systems. Most of conventional confidence measures for UV algorithms are mainly based on log likelihood ratio test, but these measures take much time to evaluate the alternative hypothesis or anti-model likelihood. We propose a novel confidence measure which makes use of a momentary best scored state sequence during Viterbi search. Our approach is more efficient than conventional LRT-based algorithms because it does not need to build anti-model or to calculate the alternative hypothesis. The proposed confidence measure shows better performance in additive noise-corrupted speech as well as clean speech.

  • PDF

수술전 간호정보 제공이 복부수술환자의 자가간호 수행에 미치는 영향 (A Study on the Effect of Preoperative Nursing Informations on the Self-Care in Abdominal Surgery Patients.)

  • 박덕순;권영숙;박청자
    • 기본간호학회지
    • /
    • 제6권3호
    • /
    • pp.583-596
    • /
    • 1999
  • The purpose of this study was to examine the effect of self-care of abdominal surgery patients in surgical intensive care unit after offering preoperative nursing information. This study worked out nonequivalant control group post test only design as suspected experimental study. This subjects of the study were 45 patients, 23 in experimental group and 22 in control group. This study was carried at a university hospital in Taegu between January 12, 1999 and March 13, 1999. The experimental group was supplied with preoperative nursing information and the control group received routine care in ICU. The measuring tools of this study were assessment of the self-care role behavior. The data were analyzed by SPSS computer program, $x^2-test$ and t-test and ANOVA were utilized for testing the difference between the experimental and the control group. The hypothesis was examined by t-test. The result of this study are summarized as follows ; 1) The hypothesis, 'The experimental group will show a higher level of self-care than the control group' was accepted(t=-8.958, p=.000). 2) We could not find any meaningful relation about general characteristics and disease associated characteristics between the experimental and the control group. 3) The self-care behavior scores according to the general characteristics and disease associated characteristics show significant statistical difference by economics status (p=.033). 4) The rate of self-care behavior scores of each questionnaire are below average in the questions that request active activity to prevent postoperative complications From the result of this study, the self-care of the experimental group was higher than those of the control group, and the nursing information can be regarded as an effective nursing intervention for preoperative patients.

  • PDF

골프 어플리케이션(App)특성이 소비자 몰입증진과 소비행동에 미치는 영향 : COVID-19중심으로 (The effect of golf application characteristics on consumer immersion enhancement and consumption behavior : Changes in fitness after Covid-19)

  • 임영삼
    • 한국응용과학기술학회지
    • /
    • 제38권5호
    • /
    • pp.1255-1264
    • /
    • 2021
  • 본 연구는 코로나-19 환경에서 소비자가 인식하는 골프 어플리케이션(App)특성이 몰입정도와 소비행동에 관하여 인과 관계(SEM)를 적용하여 골퍼들이 인식하는 어플리케이션 서비스를 탐색하고, COVID-19 이후 골프산업을 예측하기 위한 기초자료를 제공하고자 하였다. 이를 위해 2021년 6월 1일 ~ 8월 10일까지 표본계획에 의해 모바일 서베이(URL)를 사용하여 총 235명을 분석에 사용했다. 결과를 도출하였다. 첫째, 어플리케이션의 이동성, 신뢰성 특성이 몰입증진에 통계적으로 유의미한 정(+)의 영향을 미치는 것으로 가설이 채택되었다. 둘째, 몰입증진은 소비행동에 통계적으로 유의미한 정(+)의 영향을 미치는 것으로 가설이 채택되었다. 마지막으로 어플리케이션의 정보성, 이동성 특성이 소비행동에 통계적으로 유의미한 정(+)의 영향을 미치는 것으로 가설이 되었다.

대학 강의평가 영향력 요인 중 학생 특성의 효과에 대한 사례 연구 (A Case Study on the Effect of Student Characteristics among the Influential Factors in the Teaching Evaluation at Universities)

  • 조수선
    • 공학교육연구
    • /
    • 제19권6호
    • /
    • pp.38-43
    • /
    • 2016
  • This paper deals with the effect of student characteristics from a case study on the different teaching evaluation scores under the same conditions of professor and course characteristics. In particular, focusing the evaluation score gabs caused by different course achievements of two classes, we can analyze the influence of the student characteristics and interpret the meaning. This case study shows that the student characteristics can lead out a distinct difference in the teaching evaluation scores under the most factors related to professors and courses are controlled, In conclusion, this case study could be appropriately used to support the interpretation of the student characteristic hypothesis among several hypotheses about the meaning of correlations between student achievement and teaching evaluation.

자율주행 개인화를 위한 순환 최소자승 기반 융합형 주행특성 구분 알고리즘 (A RLS-based Convergent Algorithm for Driving Characteristic Classification for Personalized Autonomous Driving)

  • 오광석
    • 한국융합학회논문지
    • /
    • 제8권9호
    • /
    • pp.285-292
    • /
    • 2017
  • 본 논문은 자율주행 개인화를 위한 순환 최소자승 기반 융합형 종방향 주행특성 구분 알고리즘에 관한 연구이다. 최근 자율주행 기술은 Level 4 완전 자율주행 단계를 위해 다양한 연구가 수행되고 있다. 자율주행 자동차의 상용화를 위해서는 탑승자의 자율주행에 대한 이질감을 최소화할 수 있어야 하며 이를 위해 자율주행 개인화 기술이 필요하다. 이 문제를 해결하기 위해 본 연구에서는 운전자의 종방향 주행특성을 수학적으로 표현하고 순환 최소자승 기법 기반 실 주행 데이터를 이용하여 주행특성을 도출하는 알고리즘을 제안하였다. 두 명의 실제 운전자 데이터를 이용하여 종방향 주행특성을 도출하였으며 두 명의 운전자를 구분하기 위해 가설검정 기반 확률적 구분 알고리즘을 적용하였다. 제안된 종방향 주행특성 도출 및 구분 알고리즘은 개별 운전자의 주행특성을 합리적으로 나타낼 수 있었으며 가설검정 기반 확률적 구분기법에 의해 주행특성이 구분될 수 있음을 확인하였다.

The Effect of Service Qualities' Characteristics on Customer Satisfaction and Revisit Intention in Chinese Mid/Low-Priced Hotel

  • HAN, Sun;JUNG, Jin-Sup
    • 산경연구논집
    • /
    • 제12권6호
    • /
    • pp.57-74
    • /
    • 2021
  • Purpose: Before COVID-19 pandemic, Chinese mid/low-priced hotel industry has been steadily growing in recent years, and internal and external competition has been intensifying. Under these circumstances, this study started with a strategic objective to increase the quality of service, thus enabling customer satisfaction and revisit intention. For enhancing the competitiveness of Chinese mid/low-priced hotel business, we plan to establish a model using SERVQUAL, O2O platform, and identify their relationship through empirical analyses. Research design, data and methodology: Through the consideration of the existing literature, this study intended to identify the characteristics of service quality in Chinese mid/low-priced hotels and to consider their impact on customer satisfaction and revisit intention. We also wanted to examine the moderating effect of the O2O platform between the characteristics of service quality and customer satisfaction. A survey was carried out on customers using mid/low-priced hotels in China and empirical analyses were conducted using regression analyses. Results: First, in the hypothesis of service qualities' effects on customer satisfaction were identified with significant positive effects. Second, in the hypothesis of service qualities' effects on revisit intention, "tangibles, reliability, and empathy" have shown significant positive. Third, in the verification of the moderating effect of the O2O platform, there were "positive partial moderating effects" between service qualities and customer satisfaction. Finally, the effect of customer satisfaction on revisit intention was positive significant. Conclusions: In order to satisfy their customers, improvements in service quality should be made first. In addition, customer satisfaction had a positive impact on revisit intention. In order to revitalize Chinese mid/low-priced hotels, differentiation strategy is also needed for specialized customers such as college students, and basically, efforts should be made to optimize the O2O platform. O2O platforms should establish optimal platform construction strategies based on the customer's perspective. After all, in the case of Chinese mid/low-priced hotels, it is necessary to strengthen the construction of the latest hardware infrastructure and O2O platform of software infrastructure, and to improve customers' advanced online and offline experiences. Finally, regarding the hypothesis that was rejected among service qualities' characteristics, we tried to discuss the reason and find the implications of these.

기업 HRD 교육훈련 프로그램의 조직지원 특성에 따른 효과성 (Effect of the Characteristics of Organizational Support on Company HRD Education & Training Program)

  • 류석우;양해술
    • 한국콘텐츠학회논문지
    • /
    • 제12권6호
    • /
    • pp.497-507
    • /
    • 2012
  • 본 연구는 기업 HRD 교육훈련 프로그램에 대한 조직지원 특성이 HRD 교육훈련 프로그램의 효과성에 미치는 영향을 검증하는데 목적이 있다. 이를 위해 상사지원, 직무지원, 회사지원으로 구성된 조직지원 특성을 독립변인으로 하고, 반응, 학습, 전이, 결과수준을 효과성의 종속변수로 하여 실증분석을 실시하였다. 본 연구의 자료 수집은 2011년 8월 16일부터 9월 9일까지 국내 상장 및 코스닥 등록 증권사 중 서울에 본사를 두고 상시 재직자 온 오프라인 교육훈련 프로그램을 운영하고 있는 5개 기업의 임직원에게 설문지를 이용하여 배포하였다. 설문지는 3차로 나누어 총 340부가 배포되었으며, 총 164부의 설문지가 최종분석에 활용되었다. 검증 결과, 가설 1. 조직지원 특성이 반응수준에 미치는 영향에서, 상사지원, 직무지원, 회사지원은 반응수준에 대해서 모두 p<0.01 수준에서 긍정적인 영향을 미치고 있음이 확인되었다. 가설 2. 조직지원 특성이 학습수준에 미치는 영향에서, 상사지원, 직무지원, 회사지원은 학습수준에 대해서 p<0.05, p<0.01 수준에서 유의한 영향을 미치고 있음이 확인되었다. 가설 3. 조직지원 특성이 전이수준에 미치는 영향에서, 상사지원, 직무지원, 회사지원은 전이수준에 대해서 모두 긍정적인 영향을 미치고 있는 것으로 나타났다. 가설 4. 조직지원 특성이 결과수준에 미치는 영향에서, 상사지원, 직무지원, 회사지원은 결과수준에 p<0.01 수준에서 긍정적인 영향을 미치고 있는 것으로 분석되었다. 이러한 연구결과를 통해 기업 교육훈련의 효과성은 교육훈련 프로그램의 내용과 질도 중요하지만, 교육훈련 과정에 대한 지지체계와 학습한 것을 실제 업무 현장에 적용할 수 있는 환경이 성과에 더 큰 영향을 미친다는 선행연구 결과를 재확인할 수 있었으며, 실제로 교육훈련 프로그램을 주관하고 실시하는 기업이나 전문가들은 교육훈련 프로그램 설계 특성도 중요하나, 조직지원 특성이 교육훈련 효과에 중요하게 작용함을 인식하여야 할 것이다.

Impacts of menu information quality and nutrition information quality on technology acceptance characteristics and behaviors toward fast food restaurants' kiosk

  • Han, Jihee;Moon, Hyeyoung;Oh, Yoonha;Chang, Ji Yun;Ham, Sunny
    • Nutrition Research and Practice
    • /
    • 제14권2호
    • /
    • pp.167-174
    • /
    • 2020
  • BACKGROUND/OBJECTIVES: With the advances in technologies, self-service kiosks at foodservice operations are becoming a new way of service provision. This study examined the relationships among the menu information quality, nutrition information quality, technology acceptance characteristics, and customer behavioral intention toward the kiosks in fast food restaurants. SUBJECTS/METHODS: A survey with a self-administered method was distributed online and offline. The sample consisted of customers who had used the kiosks at fast food restaurants in the last six months prior to the survey. The study hypotheses were tested by applying structural equation modeling. RESULTS: Structural equation modeling revealed the positive impacts of menu information quality and nutrition information quality, technology acceptance characteristics, and behavioral intention toward kiosks at fast food restaurants. On the other hand, one hypothesis (Hypothesis 4) on the impact of nutrition information quality on the perceived usefulness was rejected. CONCLUSION: The study is the first to investigate nutrition and menu information at foodservice kiosks and relate them to technology acceptance. The study is very timely and adequate in the time of the 4th industrial revolution. The critical importance of the presentation of nutrition information and menu information at the kiosks at fast food restaurants was verified. The academic and industrial implications of the study findings were discussed.