• Title/Summary/Keyword: self-concept in science

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The Relationships of Chemistry problem Solving Ability with Cognitive Variables and Affective Variables (화학 문제 해결력과 인지적.정의적 변인 사이의 관계)

  • Noh, Tae-Hee;Han, Jae-Young;Kim, Chang-Min;Jeon, Kyung-Moon
    • Journal of the Korean Chemical Society
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    • v.44 no.1
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    • pp.68-73
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    • 2000
  • In this study, tlhe relationships of high school students' abilities to solve chemistry problems with cognitive variables (logical thinking ability, mental capacity. and learning strategy) and affective variables(self-efficacy, self-concept of ability, learning goal, and attitude toward science) were investigated. The proportion of variance due to the variables for algorithmic and conceptual problem solving ability was studied by a multiple regression analysis. The results indicated that, among the cognitive variables, the logical thinking ability significantly predicted the algorithmic problem solving ability, and the learning strategy was the best predictor of conceptual problem solving ability although not significant. Among the affective variables studied, the self-concept of alility was the significant predictor of both algorithmic and conceptual problem solving abilities. The seif-efficacy was significantly correlated with conceptual problem solving ability, but it had no predictive power.

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The Effectiveness of Metacognitive Instruction Model on the Changes of Molecular Concepts (초인지 수업모형이 초등학생들의 분자개념 변화에 미치는 효과)

  • 신미경;고영신;최영재
    • Journal of Korean Elementary Science Education
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    • v.18 no.2
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    • pp.65-77
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    • 1999
  • The purpose of this study was to find out the effectiveness of metacognitive instruction model on the changes of science concepts, when it was applied to 6th grade students. To do this, students were tested with the achievement of molecules and molecular motion concepts and metacognitive self-regulation test as a pretest Based upon metacognitive instruction model and student's conception, instruction program were developed. This metacognitive strategy Program was applied to the experimental group and expository teaching was applied to the comparison group (followed the order and method in authorized science textbook and teachers handbook). When planned lessons were finished, students were given a post-test to find conceptual change. After six months students were given a test again to find retention effect. There was a significant difference in conceptual change and retention between comparison group and experimental group by treatment at p< .05 level, The difference between comparison group and experimental group was especially significant, when the situation of test item wasn't similar to that of the textbook Metacognitive instruction model was more effective to high group than low group in metacognitive self-regulation level on conceptual change and retention. So the metacognitive strategy Played an important role in conceptual change and retention. And we can recognize that the students who take part in the metacognitive lesson can apply the corrected concept to the other concrete situation because they can understand new concept accurately by metacognitive strategies. And we can guess that high group in metacognitive self-regulation level can team metacognitive strategy easily but relatively low group student have some trouble in learning new strategy.

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Retail functions and skills of venture merchants: A case study of Lunuganga

  • CHO, Myungrae
    • Journal of Distribution Science
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    • v.19 no.3
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    • pp.5-14
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    • 2021
  • Purpose: This study aims to clarify the behavioral extraction and ability of venture merchants, who actively challenge commerce in the face of harsh living environments. Research design, data and methodology: Adopting the concept of retail functions and retail skills, this study examines how venture merchants perform retail functions, and identifies the required retail skills. This study analyzed primary data obtained through an interview with a bookstore called Lunuganga. Results: The venture merchant purchases products based on his self-assertion and creates an original "store identification." Moreover, he draws a changing "own-store customers image" and acquires "own-store customers," that is, customers acquired by him by building an original store identity. He sells products to "own-store customers" who identify with the store. The retail skills identified as required by venture merchants to carry out such retail functions were "skill to draw a store identification" and "skill to draw own-store customer image." Conclusions: Venture merchants' unique retail functions and retail skills suggest a new basis for the existence of small and medium-sized retailers. It is necessary to build a generalized theoretical hypothesis model by refining the concept presented in this paper by repeating research targeting venture merchants in the same industry and different industries.

Development of a Family Pattern Appraisal to Guide a Rogerian Nursing Practice (Rogers 이론에 근거한 가족양상 사정지침개발)

  • 이광옥;한영란;김희정
    • Journal of Korean Academy of Nursing
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    • v.25 no.4
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    • pp.751-773
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    • 1995
  • We, clinical nurse specialists practising and guiding student practice in a Community health nursing clinic, wanted to develop a family pattern appraisal consistent with Rogers' conceptual system, the nursing model guiding our practice. We use Rogers' model because it is harmonious with the traditional Korean view of the one human, natural and cosmic world. The purpose of our research was to contribute to science - based nursing practice, not only, one helpful model, but also a model of how to use, in guiding practice, a conceptual system which reflects nurse practitioners' philosophy of nursing, is intellectually satisfying, and enriches meaning in daily nursing life. The research objectives were to review the literature on Rogers' model and analyse it according to Kim's five - level analytical framework, to explore Rogers' definition of family, to review appraisals based on Rogers' model, and to develop a family appraisal which is culturally appropriate for use in our community. This work including the use of the appraisal and its refinement with families in our practice which was done during 1994 and 1995, in Seoul, in the Capital of the Republic of Korea. At the highest level of analysis, Rogers conceptual system emphasizes acausality and multidimentional meaning ; the world view is characterized by process, movement and wholeness. The epistemology Is one of holism and the knowledge base includes all forms of experience, from sensory to mystical, objective, and subjective. At the metaparadigm level, nursing focuses on the unitary human being and the environment. At the level of nursing philosophy, the model identifies human being, nursing, nurse, and illness and health. At the paradigm level the model assumes the irriducibility of the human to parts, noncausality and continual change. Rogers' practice methodology consists of pattern manifestation appraisal and deliberative mutual patterning. Under-standing patterns and patterning of people is the key to helping them achieve their potential. At the theory level, the basic assumptions, key concepts, and homeodynamic principles were identified. Rogers states the family energy field is an undividable, four-dimensional negentropic energy field which is in a larger envircinmental field show-ing such characteristics as cannot be predicted by knowledge of individual family members. Based on the word of Rogers scholars, we chose Rogers' correlates of patterning to understand the family unit as a whole-frequency, rhythms, motion, time perception, sleeping-waking beyond waking, pragmatic -imaginative-visionary to develop the appraisal. We, also used some of Barrel's (1988) criteria including interpersonal network and professional health care access and use, and Cordon's (1982) criteria including self perception - self concept modified to fit the family. Our family Pattern appraisal included 1. Influencirg data, 2. Professional health care access and use, 3. Family self perception-self concept, 4. Family interpersonal network, 5. Sleep-wake-be-yond waking, 6. Pragmatic-imaginary-visionary, 7. Family frequency and rhythm, 8. Family motion, 9. Family time perception. The appraisal was used with four families and modified to eliminate overlap and to make it possible for the family member to express themselves more easily. We plan to gain more experience with the appraisal toward further development of the tool.

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Cognitive Conflict and Causal Attributions to Successful Conceptual Change in Physics Learning

  • Kim, Yeoun-Soo;Kwon, Jae-Sool
    • Journal of The Korean Association For Science Education
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    • v.24 no.4
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    • pp.687-708
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    • 2004
  • The purpose of this study is to investigate the relationships between cognitive conflict and students' causal attributions and to find out what kinds of attributions affect successful resolution of cognitive conflict in learning physics. Twenty-nine college students who attended a base general physics course took an attribution test and a conceptual pretest related to action and reaction concept. Of these, twenty students who revealed alternative conceptions were selected. They were confronted with a discrepant demonstration and took part in the cognitive conflict level test, a posttest, and delayed posttest. Those students who experienced high levels of cognitive conflict were selected and interviewed to find out what kinds of attributions affect resolving the conflict. When confronted with the discrepant event, the students who attributed success outcomes to "effort" experienced higher levels of cognitive conflict than those to "task difficulty." However, those students who revealed high levels of cognitive conflict and attributed success outcomes to effort did not always produce conceptual change. They had different perspectives on effort and conducted different effort activities to resolve the cognitive conflict. In addition, these effort activities appeared to include their motivational beliefs, metacognitive and volitional strategies. The results of this study indicate that in order for the conflicts to lead to change, students need to have the perspective on effort implying the use of the self-regulated learning strategy and to conduct effort activities based on them. Beyond cold conceptual change, this article suggests that there is a management strategy of cognitive conflict in the classroom context.

The Effects of The Parent Brand-Congruity on the Attitude to Expanded Brand (모 브랜드-일치성이 확장브랜드에 대한 태도에 미치는 영향)

  • Kang, Min-Jung;Hwang, Hee-Joong
    • Journal of Distribution Science
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    • v.17 no.2
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    • pp.77-89
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    • 2019
  • Purpose - This study presents the relationships between parent brand-self image congruence, parent brand -functional congruity, perceived fit between parent brand and extension product, and consumer's attitude toward extension product using the structural equation model. As for preceding concepts having a direct effect on consumer's attitude toward brand extension, the study focuses on parent brand-self image congruence and parent brand-functional congruity. It also looks at the effect of parent brand-self image congruence and parent brand-functional congruity on the consumer's attitude toward extension product and identifies if the perceived fit between parent brand and extension product is a concept playing a mediating role between parent brand-self image congruence or parent brand-functional congruity and consumer's attitude toward brand extension product. Research design, data, and Methodology - SPSS for Windows 18.0 and AMOS 18.0 were used for data analysis. Then, the Cronbach's α coefficient was obtained using SPSS for Windows 18.0 to measure reliability. In addition, the convergence and discriminative measures of the measured items were statistically verified using AMOS 18.0. Finally, we have validated a path model and a parameter model in which brand personality-self-matched attitude toward brand extension. Results - Studies have shown that the impact of parent brand-self image consistency and parent brand-functional consistency on the attitude of extended products was positive. Perceived fit between parent brand and extension products has been shown to play a role of intermediary between parent brand-self image congruence and consumer attitudes to extended products. However, perceived fit between parent brand and extension products did not play a role as intermediary between the parent brand-functional congruity and the attitude toward the extended product. Finally, in relation to the causal relationship between parent brand-congruity (self image/functionality) and attitudes to extended products. The effect of parent brand-functional coherency on attitudes toward extended products was found to be greater in groups with higher involvement than in those with lower involvement. Conclusions - Although few studies have been done on what variables mediated when parent brand-self image consistency and parent brand-functional coherency affect consumer attitude, this paper is significant in finding whether perceived fitness between the parent brand-congruity and the extension product is mediated.

Colloidal Optics and Photonics: Photonic Crystals, Plasmonics, and Metamaterials

  • Jaewon Lee;Seungwoo Lee
    • Current Optics and Photonics
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    • v.7 no.6
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    • pp.608-637
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    • 2023
  • The initial motivation in colloid science and engineering was driven by the fact that colloids can serve as excellent models to study atomic and molecular behavior at the mesoscale or microscale. The thermal behaviors of actual atoms and molecules are similar to those of colloids at the mesoscale or microscale, with the primary distinction being the slower dynamics of the latter. While atoms and molecules are challenging to observe directly in situ, colloidal motions can be easily monitored in situ using simple and versatile optical microscopic imaging. This foundational approach in colloid research persisted until the 1980s, and began to be extensively implemented in optics and photonics research in the 1990s. This shift in research direction was brought by an interplay of several factors. In 1987, Yablonovitch and John modernized the concept of photonic crystals (initially conceptualized by Lord Rayleigh in 1887). Around this time, mesoscale dielectric colloids, which were predominantly in a suspended state, began to be self-assembled into three-dimensional (3D) crystals. For photonic crystals operating at optical frequencies (visible to near-infrared), mesoscale crystal units are needed. At that time, no manufacturing process could achieve this, except through colloidal self-assembly. This convergence of the thirst for advances in optics and photonics and the interest in the expanding field of colloids led to a significant shift in the research paradigm of colloids. Initially limited to polymers and ceramics, colloidal elements subsequently expanded to include semiconductors, metals, and DNA after the year 2000. As a result, the application of colloids extended beyond dielectric-based photonic crystals to encompass plasmonics, metamaterials, and metasurfaces, shaping the present field of colloidal optics and photonics. In this review we aim to introduce the research trajectory of colloidal optics and photonics over the past three decades; To elucidate the utility of colloids in photonic crystals, plasmonics, and metamaterials; And to present the challenges that must be overcome and potential research prospects for the future.

Effect of a Spiritual Care Empowerment Program on Psychological Empowerment of Nursing Students (영적 간호임파워먼트 프로그램이 간호대학생의 심리적 임파워먼트에 미치는 효과)

  • Kim, Jin;Cha, Nam Hyun
    • Journal of East-West Nursing Research
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    • v.25 no.2
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    • pp.117-127
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    • 2019
  • Purpose: This study was conducted to test the effects of a spiritual care empowerment (SCE) program on the psychological empowerment for nursing students. Methods: A nonequivalent control group pretest-posttest design was used. The participants were 80 nursing students (41 in the experimental and 39 in the control group) recruited from the D and S universities. The SCE program used in this study was developed based on the Zimmerman's Psychological Empowerment Model. The experimental group attended 9 sessions of a SCE program. Sessions were 90 minutes each, held twice per week for 5 weeks. Data were analyzed using Chi-square, Fisher's exact test, and t-test using SPSS/WIN 18.0. Results: Intrapersonal (self esteem and existential well-being), interactional (empathy), and behavioral (spiritual care competence) components were significantly improved in the experimental group after the intervention compared to the control group. Conclusion: The results show that the SCE program could be effective in improving the psychological empowerment of nursing students. Accordingly, the SCE program would be applied to the nursing curriculum that enhances students' psychological empowerment.

The Effects of Preschool Infants' Self-elasticity on Emotional Control, Empathy, and Teacher Efficacy (예비유아교사의 자아존중감이 자아탄력성과 정서조절능력 및 공감능력에 미치는 영향)

  • Choi, Mi Soog
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.12
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    • pp.586-594
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    • 2020
  • This study examined the effect of self-esteem of pre-infant teachers on self-elasticity, emotional regulation, and empathy. The subjects of this study were 230 university students from W University's Early Childhood Education Department in location I. The data were analyzed using SPSS 24.0. In addition, in each sub-variable, self-elasticity was found to have the greatest positive correlation with positivity, emotional regulation ability with self-emotional regulation ability, and empathy ability with cognitive empathy ability. Second, self-esteem had a significant positive effect on self-elasticity, and among the sub-variables, this study found that general self-concept, self-responsibility, and personal integrity in order were important determinants. Third, self-esteem has an influence on personal integrity in emotional regulation ability. Fourth, as for the effect of self-esteem on empathy ability, it was found that self-assertion had a significant and positive effect on empathy ability. These research results have led to re-awareness of the importance of pre-service early childhood teachers' self-esteem, suggesting that research on various educational activities that can improve self-esteem in the curriculum is needed.

Determinants Affecting Residents' Community Attachment in Rural Tourism Development (농촌관광 마을주민 지역사회애착심 영향요인 분석)

  • Park, Duk-Byeong
    • The Korean Journal of Community Living Science
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    • v.20 no.2
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    • pp.247-262
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    • 2009
  • A concept of community attachment was applied to investigate the residents' support for tourism development. This study aims to identify the factors influencing conflict management and community attachment on community resident in rural tourism villages. On-site survey with self-administered questionnaires was conducted for 348 residents in the rural tourism communities. Two distinct segments were identified by factor-clustering methods: functional-affective community attachment(80.72%) and anti-community attachment(19.28%). The characteristics of community residents with each type of community attachment were determined using a Bionomial Logistic Regression model. The most important determinants of positive community attachment were the degree of tourism business involvement, sex, and education. Therefore, some government supportive programs are needed to improve community attachment for the people who are under educated and females. In addition, the functional aspects of community attachment should be considered for rural tourism development.

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