• Title/Summary/Keyword: types of evidence

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Analysis of the Types and Levels of Evidence in Elementary Students' Scientific Argumentation (초등학생들의 과학적 논증활동에서 증거의 유형 및 수준 분석)

  • Ryu, Hye-Kyoung;Lim, Heejun
    • Journal of Korean Elementary Science Education
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    • v.33 no.1
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    • pp.162-171
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    • 2014
  • The use of evidence is very important in scientific argumentation. This study investigated the types and levels of evidence in scientific argumentation in an elementary science class. 34 fourth graders in a class were selected as subjects, and argumentation was performed in seven lessons on 'Heat transfer and our lives' unit. Small group argumentation was recorded, transcribed and used as data for analyses. The analyses found the following results. First, in regard of the types of evidence, personal evidence dominated over authority-based evidence. Second, in the analysis of the levels of evidence, using inappropriate evidence was found to account for the highest percentage, followed by using appropriate evidence and just arguments without evidence. There were quite a lot of cases of arguments without evidence. It was found that the types and levels of evidence that students used could change depending on the relevance between experiments and argument tasks.

The Tendency of Children's Response on Scientific Evidence Materials (과학적 증거 자료에 대한 아동들의 반응유형 경향성)

  • Lee Yong-Kyung;Yang Il-Ho;Kim Jin-Soo
    • Journal of Korean Elementary Science Education
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    • v.24 no.4
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    • pp.443-451
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    • 2005
  • This study was designed to investigate children's response types, which are always consistent when they meet with different evidence materials. The participants in this study were 119 students of 6th grade in elementary school, who were acquainted with evidence materials presented and able to state logically. Evidence materials were constructed on the main subjects of a cause of the dinosaur extermination and a purpose of the astronomical observatory establishment. The criteria, 'whether or not believe evidence materials presented', 'whether or not believe evidence materials newly presented', 'where or not decrease their belief in the preinstructional evidence materials', and 'whether or not change their belief' were used to classify the type of their responses. So the students' responses to the evidence materials were classified into low types: rejection, reinterpretation, belief decrease, and valuation by evidences. Only about a third of them was also consistent with response types, but the others showed individually different responses to new evidence materials. The types of belief decrease and valuation by evidences were relatively below, while those of the rejection and reinterpretation were likely to represent them again, and these results did not reflect a meaningful difference between male and female. These results show that children's response type are not always coherent, and that they respond variously according to the evidence materials except for an individual cognitive view and a background in estimating evidence materials, and most of them are contents dependent in evaluating evidences. Therefore we are expected to apply it to studies on a thought process of the student as data on the basis of them and develop more various evidence materials responded by basis on evidence.

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Middle School Gifted Students' Evidence-Based Reasoning about the Shape of a Planet's Orbit (행성 궤도의 모양에 관한 중학교 영재 학생들의 증거 기반 추론)

  • Oh, Phil Seok
    • Journal of the Korean earth science society
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    • v.42 no.1
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    • pp.118-131
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    • 2021
  • The purpose of this study was to investigate the characteristics of evidence-based reasoning practiced by middle school gifted students. Data were collected through an online task in which middle school students in gifted education institutes of a university located in the metropolitan area, Korea, performed inquiry about the shape of a planet's orbit. The students were given data of Mercury's greatest elongations and asked to draw the planet's orbit with the data. Each of the students was also asked to provide his or her hypothesis of Mercury's orbit before the drawing and to reason about the orbit again using his or her own drawing as evidence. The content analysis of the students' reports revealed 5 different types of judgement about the shape of Mercury's orbit, 4 types of reasoning about the hypothesis and evidence, and the characteristics of evidence-based reasoning within the judgement types. Based upon the analysis results, the importance of proper interpretations of evidence in evidence-based reasoning, the core role of the theory-evidence coordination, and the usefulness of working with multiple hypotheses were discussed. In addition, implications for earth science education were suggested.

The Students' Causal Inference Modes on Experimental Evidence Evaluation for Optical Phenomena (광학 현상 증거 해석의 인과적 추론 방식)

  • Pak, Sung-Jae;Jang, Byung-Ghi
    • Journal of The Korean Association For Science Education
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    • v.14 no.2
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    • pp.123-132
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    • 1994
  • The experimental evidence evaluation of the 11th grade students(N:91) was investigated. Specially, the influence of students' ideas about optical phenomena and presented evidence types on their evidence evaluation, and the influence of students' ideas on their causal inference modes were investigated. After eliciting the students' ideas about shadow phenomena and conformity of their idea, the experimental results with a binary outcome were presented as the evidence. Then the students were asked to evaluate the evidence. Again students' ideas were elicited. Most of students had causal ideas such that the shape of object(96%) and the inclination of screen(75%) were causes of shadow shape, not the shape(70%) and color(92%) of light source. In the case of the shape of object and the color of light source, most students(70%) believed strongly their ideas. Most responses(80%) in the evidence were evidence-based, and 12% of them were theory-based. There was no significant difference of reponses types between students with causal ideas(81%) and students with non-causal ideas(78%), between covariable and non-covariable evidence. But in the case of non-causal ideas, covariable evidence was more likely to yield evidence-based reponses than non-covariable evidence. If students had preconcepts inconsistent(84%) with the evidence, they were more likely to make evidence-based responses than the students with consistent ideas (75%) with the evidence. Especially in the case perceptually biased evidence, this tendency was marked. In the case of covariable evidence, many students made inclusion inferences(40%) rather than uncertainty inferences(32%). In the case of uncertainty inferences(94%), students more likely to make evidence-based reponses than inclusion inferences(83%) and exclusion infernces(88%). In the case of inclusion inferences and exclusion infernces, students tended to make idea-based responses and distort the evidences. In conclusion, when the students evaluate the experimental evidences, their ideas influence the causal inference modes. Especially, according to the conformity of the preconcepts and logical relation of evidences, the inference modes are more strongly depended upon the preconcepts rather than evidences.

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The Characteristics of Evidence in Evidence-based Design Research and Their Implications to the Evidence-based Practice of Healthcare Architecture - Focused on Health Environments Research & Design Journal (근거기반설계 연구의 근거 특성과 의료건축의 근거기반실무를 위한 시사점 - HERD의 연구경향 분석을 중심으로)

  • Kim, Duksu
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.28 no.4
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    • pp.21-30
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    • 2022
  • Purpose: To prove the credibility of EBD, it is necessary to define concepts regarding the nature of credible knowledge and the hierarchy of evidence. In addition, the relationship between EBD and EBP needs to be addressed through a practical viewpoint. Methods: The systematic review is applied to define the nature of knowledge and the characteristics of research papers in architectural EBD while analyzing the field of study, knowledge focus and types of keywords of the first author. Results: As a whole, the types of research focus evaluated using the most frequent keywords include function(40.86%), specialized knowledge(30.52%), professional practice(21.37%), and health(5.78%). Empirical research(83.72%) is more likely to be found than theoretical research(13.95%). The EBD research papers ranked as top-tier are only 7(2.03%) among a total of 344, while the research papers ranked in the third to fourth tiers are 276(80.23%). Implications: There is a deficiency of reliable 1-2 tier research papers. From a practical viewpoint, it would be realistic to recommend that healthcare architects appropriately evaluate the quality of EBD research and apply it in practice, rather than to conduct EBD research themselves. This systematic review illustrates the nature of EBD research.

Analyzing Coordination of Theory and Evidence Presented in Pre-service Elementary Teachers' Science Writing for Inquiry Activities (예비 초등교사의 과학 탐구 글쓰기 활동에서 나타난 이론과 증거의 조정 과정 분석)

  • Lee, Sun-Kyung;Lee, Gyu-Ho;Choi, Chui-Im;Shin, Myeong-Kyeong
    • Journal of The Korean Association For Science Education
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    • v.32 no.2
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    • pp.201-209
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    • 2012
  • This study aims to explore patterns and characteristics of coordination between evidence and theories which were found in pre-service elementary teachers' writing for their science inquiry. Five science inquiry activities and a total of 115 writings of the participant teacher at the elementary teacher preparation university in Korea were collected and analyzed for this study. Based on the writing analyses there were found four types of coordination between the evidence and theory. We proposed four types as: Type 1-Consistency of evidence and theory; Type 2-Consistence of evidence and theory including more extension or elaboration of theory; Type 3-Inconsistence of evidence and theory Type 4-Inconsistence of evidence and theory followed by coordination of them. Firstly the findings indicated that the most to least frequent types were Type 1, Type 3, Type 2, and Type 4. The most frequent type was Type 1. It is interpreted that theory in the inquiry questions were frequently figured out by participants and they selected supporting evidence out of data found. There were rarely found relations between activity topics and frequencies of coordination types except in activity 1. The findings in this study will connect to the point of how students collaborate their previously owned knowledge with experiment planning, data analysis and interpretation and making of their own scientific claims.

The Effects of Message Framing and Evidence Type on Obesity Prevention for Chinese Adolescents (메시지 프레이밍과 증거 유형에 따른 중국 청소년 비만예방 메시지 효과)

  • Shu, Xiaoshuang;Choi, Youjin
    • The Journal of the Korea Contents Association
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    • v.18 no.3
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    • pp.626-635
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    • 2018
  • To develop prevention messages for increasingly severe adolescent obesity in China. this study tested interaction effects between obesity involvement and message framing, and between obesity involvement and evidence types on obesity prevention attitudes and behavioral intentions. Message framing types are categorized with a gain frame and a loss frame. Evidence types are classified into narratives based on personal experiences and statistics based on objective numerical proofs. Three hundred sixty eight Chinese adolescents participated in the study. Results found that involvement, framing, and evidence types had significant effects on attitudes and behavioral intentions to obesity prevention. Adolescents highly involved in obesity were more likely to show positive attitudes and behavioral intentions when exposed to loss framing and statistical evidence. Those with low involvement showed positive attitudes and behavioral intentions after exposed to gain framing and narratives. Thus, we suggest that loss frames with numerical data should be developed to persuade adolescents with high involvement, and gain frames with narratives should be developed for those with low involvement.

Research Trends in Evidence Based Medicine on Acupuncture -Randomized Controlled Trial- (침 관련 근거중심의학의 연구 동향 - Randomized Controlled Trial을 중심으로 -)

  • Lee, Ro-Min;Nam, Sang-Su;Lee, Sang-Hoon;Kim, Yong-Suk
    • Journal of Acupuncture Research
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    • v.26 no.2
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    • pp.147-158
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    • 2009
  • Objectives : The purpose of this study is to review the recent research trends of evidence based medicine, especially human randomized controlled trials on acupuncture. Methods : The articles were collected by retrieving the database of Pubmed and Journal of Korean Acupuncture & Moxibustion Society. The retrieving period was from October 2003 to September 2008, and the search term was 'acupuncture'. The articles were classified according to their publication journals, countries, publication years, targeted diseases, types of acupuncture and types of control. Results : In total, 558 articles in Pubmed and 35 articles in Journal of Korean Acupuncture & Moxibustion Society were searched. The number of articles on acupuncture research has increased with higher rate since 2000, but the Qualitative development has not achieved the same amplitude. Studies in Korea were insufficient both in Qualitative and Quantitative aspects. In countries, China had the most papers, and in targeted diseases, pain diseases were most dominant. In the types of acupuncture, classical acupuncture, and in the types of control, conventional western treatment showed the highest frequency. Conclusions: We need to do many-sided and more high Quality researches on acupuncture. For that, well-designed randornized trials are absolutely necessary.

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Complementary and Alternative Medicine Among Older Adults in the United States: Current Evidence and Future Directions

  • Yoon, Saun-Joo L.
    • Perspectives in Nursing Science
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    • v.3 no.1
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    • pp.73-89
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    • 2006
  • Complementary and alternative medicine has gained popularity and respectability in recent years in the United States. Since aging is often associated with chronic health conditions that commonly lead to physical and psychosocial disabilities (e.g., depression, functional and/or cognitive disabilities, and decreased quality of life), older adults often seek options to maintain health and treat chronic conditions as an adjunct to conventional medical care. Herbal products, the most commonly used among various complementary and alternative medicines (CAM), should be used with caution due to potential herbal-drug interactions (related to polypharmacy) and herbal-disease interactions (related to comorbidities). Five of the most common chronic conditions in older adults are chronic pain, cardiovascular problems, hypertension, diabetes, and chronic lung problems. A high rate of falls or risk of falling is also a problem unique to this older population. For these conditions, only a few types of CAM (e.g., acupuncture, qi gong, tai chi) were tested, with promising results. However, in spite of evidence supporting the use of certain types of CAM to alleviate some common chronic conditions, findings are limited in terms of other types of CAM tested and both short and long-term effects. More rigorous clinical trials of various CAM types are thus warranted to advance scientific knowledge and establish evidence-based practices to care for the growing number of older adults who deserve to have a better quality of life.

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Research about the Identification and Gathering of Digital Forensic Evidence by Cyber Intrusion Accident Types (사이버 침해사고 유형별 디지털 포렌식 증거의 식별 및 수집에 관한 연구)

  • Shin, Kyung-Jun;Lee, Sang-Jin
    • Convergence Security Journal
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    • v.7 no.4
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    • pp.93-105
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    • 2007
  • A digital forensic technology and tools are used much in the rapidly increased cyber intrusion accident investigation. But, almost the identification and gathering tools of digital forensic evidence are very difficultly integrated and simply poor-skill. Thereby, Important digital evidences at intrusion accident investigation of public institution and a private enterprise can be omitted or demaged. In this paper, therefore, we refer to 'The digital forensic tool for identification and gathering evidence' based only Window OS by using 'Log Parser', discuss the methodology for the identification and gathering of digital forensic evidence by cyber intrusion accident types.

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