• Title/Summary/Keyword: 과학선호도

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Relationships Between Student Cognitive . Affective Characteristics and Conceptual Understanding from Individual CAl for Science Learning (과학 학습을 위한 개별적인 CAI에서 학생들의 인지적.정의적 특성과 개념 이해도의 관계)

  • Noh, Tae-Hee;Kim, Kyung-Sun
    • Journal of The Korean Association For Science Education
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    • v.25 no.7
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    • pp.728-735
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    • 2005
  • In this study, relationships between student the cognitive affective characteristics and conceptual understanding from individual computer-assisted instruction were investigated. Tests regarding field dependence-independence, learning strategy, self-regulated ability, visual learning preference, goal orientation, self-efficacy on ability, and computer attitude were administered. After having been taught by means of a CAl program, a conception test on molecular motion was administered. It was found that student conceptual understanding was significantly related to field independence, learning strategy, self-regulated ability among the cognitive characteristics and visual learning preference, goal orientation, self-efficacy on ability among the affective characteristics. Multiple regression analysis of the cognitive characteristics on conceptual understanding found that field dependence-independence was the most significant predictor. Self-regulated ability and a deep learning strategy were also found to have predictive power. Lastly, analysis of the affective characteristics, visual learning preference and self-efficacy on ability exposed them to be significant predictors of student conceptual understanding.

Comparative Study on Perception of Native Local Foods in Elementary School Students in Gyeongsang-do and Jeolla-do (I) -Focus on Recognition and Preference- (경상도 지역과 전라도 지역 초등학생의 향토음식에 대한 인식 비교(I) -인지도와 선호도를 중심으로-)

  • Hwang, Hye-In;Kim, Hyun-Ah
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.43 no.9
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    • pp.1439-1446
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    • 2014
  • The purposes of this study were to analyze recognition and preference of native local foods in elementary school students in Gyeongsang-do and Jeolla-do, as well as compare regional differences in recognition and preference of native local foods between students in Gyeongsang-do and Jeolla-do. A survey was conducted on 300 elementary school students located in Gyeongsang-do and Jeolla-do. The results of this study were as follows. First, there was no significant difference in terms of recognition score of overall native local food between students in Gyeongsang (9.43 out of 20 dishes for 254 students) and students in Jeolla (9.13 out of 20 dishes for 261 students). The recognition levels (4.88 out of 10 dishes) of native local foods in students in Gyeongsang-do were significantly higher than those (4.40 out of 10 dishes) in Jeolla-do (P<0.001). Second, the preference level (2.91 points) for native local food in students in Gyeongsang-do was significantly higher than that (2.72 points) in students Jeolla-do (P<0.001) based on a 5-point Likert scale. The preference level (3.03 points) of students in Gyeongsang-do for native local food was significantly higher than that (2.80 points) of students in Jeolla-do (P<0.001) based on a 5-point Likert scale. In conclusion, students in Jeolla-do perceived native local foods in Jeolla-do and Gyeongsang-do impartially, whereas students in Gyeongsang-do perceived native local foods better. The overall sample of elementary school students preferred native local food in Gyeongsang-do to native local food in Jeolla-do. Thus, there were regional differences in terms of recognition and preference of native local foods in elementary school students. To enhance the recognition and preference of native local foods in Jeolla-do, food culture and dietary education should be carried out.

An Study Regarding the Effects of "Lowest Price Guarantee Policy" on Consumers' Preference of Stores (최저가격보상제도가 소매점 선호도에 미치는 영향에 관한 연구)

  • Ahn, Seung-Ho;Kim, Keun-Bae
    • Journal of Global Scholars of Marketing Science
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    • v.15 no.2
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    • pp.183-201
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    • 2005
  • The lowest price guarantee policy or price-matching guarantee is the pricing policy that promises to compensate more than the price difference if a consumer finds a lower price for the identical model he or she purchased and submits a certain proof. Most of Korean large discount stores emphasize their competitive price level by adopting the lowest price guarantee policy so that the entire Korean distribution industry is deeply influenced by the policy. The article is the study regarding the effects of the lowest price guarantee policy in Korean unique industry environments. The study investigated the effects of the policy on consumers' preferences of stores. By using the conjoint measurement model, it identified the main effects and interaction effects between the policy and other independent variables. The results showed the significant effects of the policy on consumers' preference of stores and identified the interaction effects between the distance from the residence and the policy, and between overall store price level and the policy.

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A Study on the Effects of Soundscapes on Forest Landscape Preference (사운드스케이프를 활용한 산림경관 선호도 평가에 관한 연구)

  • Min, Su-Hui;Lee, Chun-Yong;Joo, Woo-Yeong
    • Journal of Korean Society of Forest Science
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    • v.103 no.3
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    • pp.473-482
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    • 2014
  • The objective of this study was to understand the effects of soundscapes on forest landscape preference in the Baekdudaegan protected area. The study sites were selected in Jeombongsan and Sobaek National park selected within the Baekdudaegan. The landscape preference surveys were conducted by using landscape adjectives classified with Nature, Sound, Attractiveness, and Aesthetics. The comparative analyses examined the difference of preferences between only visual landscapes and visual landscapes with soundscapes. The research found out that soundscapes were associated with landscape characteristics, and positively correlated with the improvement in landscape preference. Thus, the research can infer that forest landscape assessment consider visual attributes as well as soundscape cues.

Automatic Preference Rating using User Profile in Content-based Collaborative Filtering System (내용 기반 협력적 여과 시스템에서 사용자 프로파일을 이용한 자동 선호도 평가)

  • 고수정;최성용;임기욱;이정현
    • Journal of KIISE:Software and Applications
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    • v.31 no.8
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    • pp.1062-1072
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    • 2004
  • Collaborative filtering systems based on {user-document} matrix are effective in recommending web documents to user. But they have a shortcoming of decreasing the accuracy of recommendations by the first rater problem and the sparsity. This paper proposes the automatic preference rating method that generates user profile to solve the shortcoming. The profile in this paper is content-based collaborative user profile. The content-based collaborative user profile is generated by combining a content-based user profile with a collaborative user profile by mutual information method. Collaborative user profile is based on {user-document} matrix in collaborative filtering system, thus, content-based user profile is generated by relevance feedback in content-based filtering systems. After normalizing combined content-based collaborative user profiles, it automatically rates user preference by reflecting normalized profile in {user-document}matrix of collaborative filtering systems. We evaluated our method on a large database of user ratings for web document and it was certified that was more efficient than existent methods.

Modeling User Preference based on Bayesian Networks for Office Event Retrieval (사무실 이벤트 검색을 위한 베이지안 네트워크 기반 사용자 선호도 모델링)

  • Lim, Soo-Jung;Park, Han-Saem;Cho, Sung-Bae
    • Journal of KIISE:Computing Practices and Letters
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    • v.14 no.6
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    • pp.614-618
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    • 2008
  • As the multimedia data increase a lot with the rapid development of the Internet, an efficient retrieval technique focusing on individual users is required based on the analyses of such data. However, user modeling services provided by recent web sites have the limitation of text-based page configurations and recommendation retrieval. In this paper, we construct the user preference model with a Bayesian network to apply the user modeling to video retrieval, and suggest a method which utilizes probability reasoning. To do this, context information is defined in a real office environment and the video scripts acquired from established cameras and annotated the context information manually are used. Personal information of the user, obtained from user input, is adopted for the evidence value of the constructed Bayesian Network, and user preference is inferred. The probability value, which is produced from the result of Bayesian Network reasoning, is used for retrieval, making the system return the retrieval result suitable for each user's preference. The usability test indicates that the satisfaction level of the selected results based on the proposed model is higher than general retrieval method.

Marketing to Asian Americans: The Impact of Acculturation and Interpersonal Influence on Ethnocentric Consumer Preferences (문화변용과 대인영향력이 민족중심적 소비자 선호도에 미치는 영향에 관한 연구 - 아시아계 미국인을 중심으로 -)

  • Taylor, Charles R.;Babin, Barry J.;Kim, Kyung-Hoon
    • Journal of Global Scholars of Marketing Science
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    • v.15 no.3
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    • pp.187-210
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    • 2005
  • The acculturation of ethnic minorities is an increasingly important issue. This paper explores the role of two factors which may be related to Asian Americans' development of preferences for ethnic or non-ethnic shopping: level of acculturation and susceptibility to interpersonal influence. Several prior studies have found that strength of ethnic identification (a measure of level of acculturation) accounts for differences in consumption patterns among immigrant groups. The results of this study suggest that ethnic identification is not a unidimensional construct. Instead, two construct, ethnic identification and consumer socialization are found to be relatedto the level of influence exerted by culturally consistent in-group than "American." A strong positive relationship is found between ethnic identifi.cation and ethnocentric purchasing preferences. In contrast, no significant direct relationship between level of.consumer socialization and ethnocentric preferences is found. Implications for marketers are discussed.

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Web Caching Strategy based on Documents Popularity (선호도 기반 웹 캐싱 전략)

  • Yoo, Hae-Young;Park, Chel
    • Journal of KIISE:Computer Systems and Theory
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    • v.29 no.9
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    • pp.530-538
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    • 2002
  • In this paper, we propose a new caching strategy for web servers. The proposed algorithm collects on]y the statistics of the requested file, for example the popularity, when a request arrives. And, at times, only files with higher popularity are cached all together. Because the cache remains unchanged until the cache is made newly, web server can use very efficient data structure for cache to determine whether a file is in the cache or not. This increases greatly tile efficiency of cache manipulation. Furthermore, the experiment that is performed with real log files built by web servers shows that the cache hit ratio and the cache hit ratio are better than those produced by LRU. The proposed algorithm has a drawback such that the cache hit ratio may decrease when the popularity of files that is not in the cache explodes instantaneously. But in our opinion, such explosion happens infrequently, and it is easy to implement the web servers to adapt them to such unusual cases.

Visual Preference Evaluation on Forest Working Systems' Characteristics for Forest Scenic Beauty Management (산림풍치자원관리(山林風致資源管理)를 위한 산림시업특성별(山林施業特性別) 시각선호도(視覺選好度) 평가(評價))

  • Song, Hyung Sop
    • Journal of Korean Society of Forest Science
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    • v.88 no.3
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    • pp.309-319
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    • 1999
  • This study was conducted to get forest scenic beauty management information toward forest working systems; characteristics in Larix forest stands. 35 different alternatives were simulated to visualize on basis of actual forest working methods. The options were illustrated as photos produced by computer software. Each alternatives were evaluated by 3 groups with total 593 respondents after reliability test. Visual preference evaluation was used 1 - 10 point rating scale. The ratings were scaled using SBE analysis program of RMRATE. To compare the relationship of visual preference and image scale, Spatial images of 13 thinning alternatives were measured by Semantic differential scale. In general, the respondents preferred refreshing and ordering forest stand after forest working to natural forest stand before forest working. Visual preference decreased with the increasing intensity of bare ground area and slash area in forest stand. And also, visual preference was high related to tree density, clear length of stem, and ground vegetation. Farm line of small clear cutting area was preferred straight line to curve line. Visual preferences were significant differences in certain socioeconomic variables of the respondents. Results indicate how to conduct forest working system for forest scenic beauty management.

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