• Title/Summary/Keyword: hypothesis

검색결과 6,321건 처리시간 0.034초

고등학생의 탐구 사고력 문제 해결 과정에 나타난 유형과 특징 (The High School Students' Problem Solving Patterns and Their Features in Scientific Inquiry)

  • 김익균;황유정
    • 한국과학교육학회지
    • /
    • 제13권2호
    • /
    • pp.152-162
    • /
    • 1993
  • The high school students' problem solving patterns and their features in scientific inquiry, especially on controlling variables and stating hypothesis have been investigated. The 8 problems on controlling variables and stating hypothesis were selected out of the scientific inquiry area in the experimental tryout of Aptitude Assessment for College Education, and had been used to find the patterns and their features. The results of findings are as follows: There were seven patterns in the process of solving problems. Five of seven patterns were found in right answers and four patterns in wrong answers. Two patterns were found in both right and wrong answers. Some students could solve the problems even though they did not understand the elements of the scientific inquiry, controlling variables and stating hypothesis. The false application of physics concepts, misunderstanding about the elements of the scientific inquiry and using unrelated experience and conjectures were the features of students' wrong answers. On the other hand, the right application of physics concepts, understanding and applying the elements right, infering answers from the tables and figures on statements of suggested problems were the features of right answers. The further studies on this kind may helpful to find the higher mental abilities related to scientific inquiry and to develop tools for testing students' scientific inquiry thinking skills.

  • PDF

라이프스타일 유형이 외식 구매 의사 결정 과정에 미치는 영향 (The Effect of Lifestyle Patterns on Decision Making Process for Foodservice Purchase)

  • 김기영;배현수;허준
    • 한국조리학회지
    • /
    • 제14권4호
    • /
    • pp.257-268
    • /
    • 2008
  • The purpose of this study was to conduct factor analysis on Foodservice consumers' lifestyle patterns in dietary life, classify lifestyle patterns, and identify how lifestyle patterns influence the 5 stages of decision making process for purchase. Among 300 copies of the distributed questionnaire, 259 copies were collected for this study. It used a total of 283 copies as the effective samples for empirical analysis except 12 copies with false entries among them. For data analysis, it conducted frequency analysis, validity and reliability analysis, factor analysis, and multiple regression analysis using SPSS 12.0. As a result, Hypothesis 1 was significant while Hypothesis 2, 3, and 5 were partially significant. On the contrary, Hypothesis 4 was not significant. Therefore, lifestyle patterns had partially significant effects on decision making process for dining-out purchase. This study subdivided dining-out consumers' lifestyles which were limited to dietary life, and also subdivided decision making process for dining-out consumers' dining-out purchase into five stages. It is significant and very suggestive that this study identified what lifestyle patterns concretely had significant effects on the specific decision making stage. In the future, the researches on adolescent class and silver class should be executed continuously.

  • PDF

심폐소생술 교육이 간호학과 학생의 심폐소생술에 대한 지식, 태도 및 지각한 수행능력에 미치는 효과 (The Effects of CPR Training for Nursing Students on their Knowledge, Attitude, and Perceived Competence)

  • 박영례;김진아;최경숙;김금순
    • 중환자간호학회지
    • /
    • 제1권1호
    • /
    • pp.7-17
    • /
    • 2008
  • Purpose: The purpose of this study was to determine the effects of CPR training for nursing students on their knowledge, attitude and perceived competence. Methods: This study was a nonequivalent control group pretest-posttest design. The participants were 54 nursing students who were conveniently assigned to an experimental or control group. The data was collected from October 22 to November 20, 2007 and analyzed by using $x^2$-test and t-test. Results: The first hypothesis,“Posttest CPR knowledge scores in the experimental group will be higher than those in the control group”was supported(t=4.257, p=.000). The second hypothesis,“Posttest CPR attitude scores in the experimental group will be higher than those in the control group” was supported(t=3.664, p=.001). The third hypothesis,“Posttest CPR perceived competence scores in the experimental group will be higher than those in the control group”was supported(t=6.49, p=.000). Conclusion: The CPR training was the effective strategic method to increase the levels of knowledge, attitude, and perceived competence for nursing students.

  • PDF

흉부경락마사지가 충수돌기 절제술 환자의 마취 후 회복에 미치는 효과 (The Effect of Chest Meridian Massage on Post- Anesthetic Recovery of General Anesthesia Patients)

  • 이병엽;손경희
    • 성인간호학회지
    • /
    • 제17권4호
    • /
    • pp.612-621
    • /
    • 2005
  • Purpose: This study aims at confirming the effects of the chest meridian massage on the post-anesthetic recovery of general anesthesia appendectomy patients. Method: The research was post-test designed as a nonequivalent control group among quasi-experiments tested. The data was collected from June 20, 2003 to October 14, 2003 at a hospital in P city. In the collected data, using SPSS Win 10.0 program, these general features were analyzed by real numbers and percentages; the homogeneity among variables by $X^2-test$ and t-test and the research hypothesis by the t-test. Result: Hypothesis 1; The experimental group receiving the treatment of the chest meridian massage will have a much higher post-anesthetic recovery score than that of the control group not receiving it was supported(t=2.544, p=.014). Hypothesis 2; The experimental group receiving the treatment of the chest meridian massage will have a much shorter time of stay in the recovery room than that of the control group not receiving it was supported(t=-4.919, p=.000). Conclusion: According to these results, it may be concluded that Chest Meridian Massage is effective in producing a higher level of post-anesthetic recovery score and helps appendectomy patients reduce the time of stay in the recovery room. Therefore the chest meridian massage can be considered as an intervention therapy for directly nursing general anesthesia appendectomy patients.

  • PDF

패션라이프스타일, 사장 및 재활용행동의 관계에 대한 탐색적 연구 (An Exploratory Study on Relations between Fashion Life Style & Consumer Behavior at Decline Stage of the Fashion Life Cycle)

  • 권기대;김승호;이순자
    • 한국의류학회지
    • /
    • 제26권2호
    • /
    • pp.280-291
    • /
    • 2002
  • This study was to apply FLC(Fashion Life Cycle) concept with extended PLC(Product Life Cycle) theory of marketing for a basis. This article was particularly analyzed relations between demographic variables and fashion lifestyle toward consumer's behavior at decline stage of FLC empirical study was to target women's formal dress. Data were collected from the adult females residing in Youngnam district. Sampling were peformed pretest and main survey. Total 386pcs of answers were used for final analysis. The results of analysis were as follows. First, Hypothesis 1 & 4 were showed meaningful differences between fashion lifestyle patterns and consumer's behavior at decline stage of FLC according to demographic characteristics. Second, Hypothesis 2 also was adopted meaningful differences of consumer's hoarding behavior at decline stage of FLC in accordance with fashion lifestyle patterns. Third, Hypothesis 3 of fashion lifestyle patterns which has related consumer's recycling behavior at decline stage of FLC was rejected. In conclusion, This article discusses implication of fashion marketing strategies and summaries..

범주형 자료에서 순서화된 대립가설 검정을 위한 정확검정의 개발 (Developing of Exact Tests for Order-Restrictions in Categorical Data)

  • 남주선;강승호
    • 응용통계연구
    • /
    • 제26권4호
    • /
    • pp.595-610
    • /
    • 2013
  • 범주형 자료에서 순서화된 대립가설을 검정하는 경우는 의학 사회학 경영학 등 다양한 응용분야에서 발생한다. 이러한 검정 방법은 대부분 대표본이론에 근거하여 개발되었다. 하지만 표본크기가 작거나 표본크기가 매우 불균등한 경우 대표본이론에 근거한 검정방법의 제 1종 오류 확률은 목표로 하는 5%와 멀어지는 경우가 많이 발생한다. 본 논문에서는 범주형 자료에서 순서화된 대립가설을 검정하는 경우 표본크기가 작거나 표본크기가 매우 불균등한 경우에 사용될 수 있는 정확검정방법을 소개하고 이에 대한 검정력 및 정확 p-value를 제시할 것이다.

사회복지 교육과 사회복지 가치 및 옹호의 관계에 관한 연구 (A study of the relationship among the social work educations, values and advocacy)

  • 전선영
    • 한국사회복지학회:학술대회논문집
    • /
    • 한국사회복지학회 2005년도 춘계학술대회자료집
    • /
    • pp.677-702
    • /
    • 2005
  • The purpose of this study is to examine the Korean social workers' level of social work values, advocacy attitude and advocacy intervention, and to verify the relations among social work education, social work advocacy and social work values by examining whether social work education influences social work advocacy and social work values, and whether social work values affect social work advocacy. Further, this study wishes to confirm not only the direct effect that social work education has on social work advocacy, but also how social work education indirectly influences social work advocacy through social work values on the social level as a mediator. The research of this study was conducted on 461 social work practitioners who have obtained either social worker licenses or mental health social worker licenses and are currently working in the field. As survey tools, this study utilized social work advocacy attitude, social work advocacy intervention, outcomes of social work education, social work values, self-esteem and locus of control. Collected data were analyzed by using SPSS/PC+ 11.5 for one-way ANOVA and t-test, Pearson's correlation, reliability analysis, exploratory factor analysis and multiple regression. To sum up the results of the study in terms of the research hypothesis, the research hypothesis was established according to the analysis method of the testing mediation of Baron & Kenny (1986) in order to examine whether social work values on the social level intervene between social work education and social work advocacy. The results of the hypothesis test confirm that social work values on the social level serve as a mediator variable.

  • PDF

The Impact of Foreign Exchange Rates on International Travel: The Case of South Korea

  • Lee, Jung-Wan
    • 유통과학연구
    • /
    • 제10권9호
    • /
    • pp.5-11
    • /
    • 2012
  • Purpose - The objective of the paper is to explain both the price sensitivity of international tourists to South Korea and the price sensitivity of Korean tourists to international travel. The study examines long-run equilibrium relationships and Granger causal relationships between foreign exchange rates and inbound and outbound tourism demand in South Korea. Research design/ data / methodology - The study employs monthly time series data from January 1990 to September 2010. The paper examines the long-run equilibrium relationship using the Johansen cointegration test approach after unit root tests. The short-run Granger causality was tested using the vector error correction model with the Wald test. Results - Hypothesis 1 testing whether there is a long-run equilibrium relationship between exchange rates, inbound and outbound tourism demand is supported. Hypothesis 2 testing whether exchange rates lead to a change in touristarrivals and expenditure is not supported. Hypothesis 3 testing whether exchange rates lead to a change in tourist departures and expenditure is supported. Conclusions - The findings of this study show that the impacts of tourism price competitiveness are changing quite significantly with regard to destination competitiveness. In other words, the elasticity of tourism price over tourism demand has been moderated.

  • PDF

The Effects of Brand Equity on Consumer Attitude and Behavior : Food Market in Vietnam

  • Jang, Yun-Su;Baek, Seung-Woo;Kim, Su-Hyeon
    • 유통과학연구
    • /
    • 제16권1호
    • /
    • pp.17-27
    • /
    • 2018
  • Purpose - The purpose of this study is to practically analyze the effect of the brand equity of Korean food companies in Vietnam on the brand attitude and purchase intention of Vietnamese consumers. Research design, data, and methodology - In total, 240 subjects were examined in this study. The collected data were analyzed using statistical programs SPSS 21 and AMOS 21. The credibility of the variables was examined using the exploratory factor analysis, and confirmatory factor analysis. The hypothesis was examined through the structural equation model analysis. Results - It is proven that brand image and perceived quality are accepted, and the brand awareness is rejected from the hypothesis that "the brand equity has a positive effect on the brand attitude". However, the brand image and brand awareness are accepted, and the perceived quality is rejected from the hypothesis that "the brand equity has a positive effect on the purchase intention". Conclusions - The following are the conclusions of the study. First, among the components of brand equity, the brand image is confirmed to positively affect both brand attitude and purchase intention. Second, high brand awareness does not necessarily lead to positive brand attitudes of the consumers. Third, The brand image appears to positively affect the brand attitude and purchase intention. However, the awareness of consumers of a brand does not directly lead to positive consumer attitudes.

지식수준과 종결욕구가 전반적 평가에 미치는 영향 : 상황적 심각성의 조절효과를 중심으로 (The Impacts of Knowledge Level and Need for Closure and on Overall Evaluations : Considering the Moderating Role of Situational Severity)

  • 김천길
    • 지식경영연구
    • /
    • 제10권4호
    • /
    • pp.115-131
    • /
    • 2009
  • This paper attempts to show that consumers' own information processing mode can play an important role in inducing favorable product evaluations, which is the most key goal of marketing. Th elaboration likelihood model contends that consumers' motivation and knowledge, in addition to the outside marketing information, affects the evaluation process. On the other hand, The resource matching hypothesis suggests that an excessively high level of information processing may lead to negative evaluations. In this study, Need for closure exacerbated overall evaluations of consumers. Such relationship was more salient in the condition of low severity that in the condition of high severity. Also under the situation of low severity, consumers with high level of relevant knowledge made evaluations more favorable, compared to the consumers of low knowledge. On contrast under the situation of high severity, relevant knowledge leaded to less favorable evaluations. This experiment identifies the appropriateness of the elaboration likelihood model and the resource matching hypothesis. Especially This study suggests an rare example that consumers' knowledge may not paly an desirable role in making their judgments.

  • PDF