• Title, Summary, Keyword: descriptive analysis

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The Features of the Observation and the Hypothetical Faults Generated by Pre-service Elementary Teachers on Candlelight Inquiry Tasks - Focusing on Usage of the Participants' Prior Knowledge - (양초 연소 탐구 과제 상황에서 초등 예비교사가 생성한 관찰 및 가설의 오류 특성 - 학습자의 선행 지식의 활용을 중심으로 -)

  • Oh, Chang-Ho;Yang, Il-Ho
    • Journal of Korean Elementary Science Education
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    • v.28 no.2
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    • pp.93-104
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    • 2009
  • The purpose of this study was to explore the relationship between pre-service elementary teacher's prior knowledge and processes of observations and hypotheses generation via analysis of descriptive fault patterns during observation, problem generation and hypotheses generation processes. For the purpose of this study, thirty-four undergraduate students were participated and descriptions of participants' responds were analyzed. As the result, four patterns of descriptive fault on the process of generating hypothesis were classified; 1) descriptive fault from the causalities, 2) descriptive fault from repetition of observational facts, 3) descriptive fault from the priority of prior knowledge, and 4) descriptive fault from negation of the observational facts. From the result, the researcher was able to explore the faults caused by pre-service elementary students' prior knowledge through the observational descriptive analysis with hypothetical descriptive analysis.

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An Analysis of Science Teachers’ Stages of Concern and Levels of Use on Descriptive Assessment

  • Kim, Sungki;Paik, Seounghey
    • Journal of the Korean Chemical Society
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    • v.60 no.5
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    • pp.353-361
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    • 2016
  • The goal of this study was to examine the current status of science teachers’ stage of concern (SOC) and level of use (LoU) on descriptive assessment and determine the relationship between SoC and LoU. To achieve this, concerns-based adoption model (CBAM) was used, and a survey was conducted on 138 science teachers. The data from this study were analyzed by frequency analysis, percentile analysis based on CBAM, χ2 test, and Spearman correlation analysis. SoC and LoU of the science teachers observed in this study are as follows. First, the science teachers’ overall SoC for the descriptive assessment was low and showed a typical pattern of the initial stage when the program was introduced. Second, LoU analysis on descriptive assessment showed that the “mechanical Use” (N=49, 35.5%) or “routine” (N=48, 34.8%) accounted for the majority. Third, the Spearman correlation between SoC and LoU on descriptive assessment was .299(p<.01). This suggests that teachers’ SoC needs to be increased in order to promote higher LoU on descriptive assessment, which requires new alternative measures.

Effects of Descriptive Menu Labels on Customers' Purchase Intentions - Focused on a Western cuisine restaurant in the United States Forces Korea - (메뉴 레이블의 설명 유형에 대한 레스토랑 이용 고객의 인식이 구매 의도에 미치는 영향 - 주한미군 내 서양식 레스토랑을 중심으로 -)

  • Chong, Yu-Kyeong;Pak, Ku-Yong;Sim, Soon-Chul
    • Journal of the East Asian Society of Dietary Life
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    • v.20 no.6
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    • pp.1008-1017
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    • 2010
  • The current study aims to determine the effects of descriptive menu labels on customers' purchase intentions in a restaurant setting. The research identified the importance of information provided by the menu labels as well as how the different types of descriptive menu labels affect patrons' purchase intentions in an American-style restaurant. The subjects evaluated in this study were foreign clients who frequented the Western cuisine restaurant in the United States Forces Korea. A total of 351 questionnaires were analyzed by factor analysis, analysis of variance (ANOVA), and regression analysis by means of SPSS 15.0. As a result, it was found that comprehension of menu and price were the most necessary pieces of information for customers encountering menu labels, and sensory type of descriptive menu labels was the most preferred. In addition, differences in the purchase intentions of customers in response to different types of descriptive menu labels suggests that there were more statistically significant differences in the perception of purchase intention among descriptive labels as compared to usual menu labels.

The interaction effect of descriptive norm message and regulatory focus in online context of franchise system (프랜차이즈 시스템의 온라인 맥락에서 서술적 규범 메시지와 조절초점의 상호작용 효과)

  • Kim, Sae-Rom;Lee, Dong-il
    • The Korean Journal of Franchise Management
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    • v.9 no.2
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    • pp.31-38
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    • 2018
  • Purpose - In recent years, many companies include franchises have acquire customers by making an online stores and they are carrying out permission marketing activities with e-mail and SMS. Permission marketing requires voluntary customer approval for receiving commercial messages such as cross-selling and upselling. Therefore, it is necessary for the business to induce the customer's acceptance. The purpose of this study is to examine which type of different messages can affect higher in consumer persuasion. Thus, we investigated the impact of descriptive norm message on intention of reception in an online store context, and its interaction with chronic regulatory focus. Research design, data, and methodology - This study hypothesized that the descriptive norm message would affect positive influences to consumers' intension of reception. Specially, this study inquired into whether the interaction effect between descriptive norm and regulatory focus. To verify the hypothesis, we conducted 2 × 2 between-subject factorial design with message type (general message and descriptive norm message) and regulatory focus(promotion focus and prevention focus) as independent variables. Participants of the experiment were assigned to one of 2 kind experimental situations randomly according to characteristics of message type. A total of 131 participants (descriptive norm message: 65, general message: 66) responded for this study. The data were analyzed using frequency analysis, exploratory factor analysis, and two-way ANOVA. Result - The results of the study are as follows. First, we found main effects of the descriptive norm message. The intention of reception were significantly higher in the descriptive norm message rather than general message as in previous researches. Second, interaction effect between the descriptive norm message and regulatory focus was significant. The prevention focus (vs. promotion focus) were hight in a positive behavior intention when the descriptive norm message was given. Conclusions - This study verifies the main effect and interaction effect of descriptive norm message and regulatory focus on the consumers' intention of reception in permission marketing, and persuasive message in the online store context. The results of this study will provide various advantages to companies that want to establish long lasting relationship with customers by carrying out permission marketing in the future.

Sensory Characteristics and Consumer Acceptance of the Clear Broth for Noodle on the Market (시판 국수장국의 관능적 특성 및 소비자 기호도 연구)

  • Cho, Dong-Yi;Yang, Jeong-Eun;Chung, Lana
    • Journal of the Korean Society of Food Culture
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    • v.35 no.2
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    • pp.193-200
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    • 2020
  • This study was conducted to understand the sensory characteristics and consumer acceptance for the commercially available clear broth for noodles. Totally, eight different clear broth samples were evaluated in this study. Seven trained panelists developed and evaluated sensory characteristics in the descriptive analysis. Significant differences (p<0.05) were obtained for all 28 attributes evaluated. Descriptive data was obtained by performing multivariate analysis of variance to identify differences between samples. Principal component analysis (PCA) was performed on the mean values of descriptive attributes obtained in the descriptive analysis, and summarizes the sensory characteristics of clear broth for noodles. PCA of the clear broths revealed that the first two principal components are responsible for 80.66% variations. For sensory testing, 160 consumers were recruited, and their acceptance for each sample was assessed. Consumer data was obtained by applying partial least square-regression (PLSR) to establish the relationship between the descriptive data and the consumer acceptance data.

Sensory Characteristics of Rice Confections by Descriptive Analysis (묘사분석을 이용한 쌀 과자의 관능적 특성 연구)

  • Jung, Daeun;Yang, Jeong Eun;Chung, Lana
    • Journal of the Korean Society of Food Culture
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    • v.31 no.1
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    • pp.105-110
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    • 2016
  • The objective of this study was to determine sensory profiles of rice confections. The samples used in this study obtained from Korea (traditional Korea rice snack and local specialty rice snack) and three countries (USA, Japan, and China) were evaluated and compared. The sensory characteristics of five kinds of rice confections were evaluated using a sensory test and were analyzed via quantitative description analysis (QDA), principal component analysis (PCA), and hierarchical cluster analysis (HCA). In the descriptive analysis, 10 trained panelists evaluated sensory characteristics consisting of 19 attributes, and there were significant differences (p<0.05) among the 16 characteristics. For the descriptive data, multivariate analysis of variance was carried out and identified differences among the samples. The PCA of rice confections for the first two principal components could explain 85.66% of the variations. The Korean, Japanese, and Chinese rice confections were savory, gritty, and particle-sized, the other Korean local specialty rice confections were fruity, sweet, honey-flavored, compact, and crispy, and those from the USA were glossy, grainy, bright, adhesive, cohesive, crispy, and sweet.

The Physiochemical Characteristic and Descriptive Sensory Evaluation of the Blackberry Fruit Beverage (복분자 음료의 이화학적 특성 및 묘사적 관능평가)

  • Yang, Hyang-Sook;Rho, Jeong-Ok
    • Korean Journal of Human Ecology
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    • v.21 no.2
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    • pp.363-375
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    • 2012
  • The purpose of this study was to analyze the physiochemical properties of blackberry fruit beverage(BFB) and to develop a descriptive analysis procedure for evaluating the sensory characteristics of BFB. The amount of soluble solid, free sugar, pH, acidity, chromaticity, flavonoid, and anthocyanin of BFB were determined. All BFB samples demonstrated significantly different physicochemical properties(p<.01). Ten highly trained panelists identified the following eleven sensory attributes in the BFB and defined by standardized terminology for each attribute; turbidity, chromaticity for appearance characteristics, berry, grass, fermented, sweet, astringent, and sour for flavor characteristics, throat hit, refreshing, as well as astringent grade for textural characteristics. There were significant differences in all the eleven sensory attributes of the BFB samples(p<.001). Descriptive terminology used in the BFB analysis was capable of classifying the sensory attributes of the BFB. Based on these results, the analysis method and sensory evaluation techniques used in this study could be reasonably applied to other fruit beverages for establishing similar physiochemical characteristic and descriptive sensory attributes.

Descriptive Sensory Profiles for Cooked Rice by Various Rice Cookers (묘사분석에 의한 취반기기별 밥맛의 관능 프로필)

  • Kim, Dong-Hee;Kim, Hee-Sup
    • Korean journal of food and cookery science
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    • v.23 no.5
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    • pp.777-784
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    • 2007
  • The purpose of this study was to provide the descriptive sensory profiles for cooked rice by various rice cookers, losing descriptive analysis. The rice samples cooked in an electric pressure cooker, and in pressure cooker B, were separated by roasted flavor, sweetness, burnt flavor, cooked rice flavor, moistness, cohesiveness, and chewiness using PCA. The rice cooked in pressure cooker A was harder and rougher, and showed grain wholesomeness, but it still had a cooked and burnt flavor. The rice cooked in a stone cooker and an electric rice cooker was less hard, and showed less grain wholesomeness, but it had a burnt, cooked rice, and less raw rice type of flavor. Finally, the RTE (ready-to-eat) rice showed more grain wholesomeness, and had more raw rice and sour flavor.

Quality Analyses and Consumer Acceptability of Gluten-Free Rice Bread and Other Commercially Marketed Bread in Korea (Gluten-Free 쌀빵, 시판 중인 쌀빵 및 밀빵의 품질과 소비자 검사 분석)

  • Kim, Sang Sook;Chung, Hae Young
    • The Korean Journal of Food And Nutrition
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    • v.30 no.2
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    • pp.336-344
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    • 2017
  • The physical characteristics of gluten-free rice bread, commercial rice as well as wheat bread marketed in Korea were delineated, a sensory descriptive analysis performed, and a consumer acceptability study conducted. Both the specific gravity and color of gluten-free rice bread were higher than those of commercial rice and wheat bread. The sensory descriptive analysis revealed that the adhesiveness, fracturability, fermentation odor, and the powdery mouthfeel of gluten-free rice bread were higher than those of commercial rice and wheat bread. In contrast, the sweet odor, sweetness, egg taste, butter taste, and milk taste of gluten-free rice bread were lower than those of commercial rice and wheat bread. The consumer acceptability results revealed differences regarding odor, appearance, taste, texture, and overall acceptance between a blind test and an informed test of gluten-free rice bread, commercial rice, and wheat bread. The consumer acceptability findings were associated with those of the sensory descriptive analysis. In overall, the results indicated that the quality of gluten-free rice bread can be improved by controlling the decrease of adhesiveness, fracturability, and powdery mouthfeel.

Developing descriptive analysis protocol for gochujang: establishing optimal palate cleanser (고추장 묘사분석을 위한 프로토콜 개발: 입가심물질 중심으로)

  • Lee, Eun-Hye;Chung, Seo-Jin;Yu, Seon-Mi;Han, Kui-Jeong
    • Korean journal of food and cookery science
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    • v.29 no.5
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    • pp.489-500
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    • 2013
  • This study was conducted to establish an effective palate cleanser when conducting descriptive analysis for gochujang products. In addition, descriptive analysis procedure for gochujang products was optimized. A generic descriptive analysis was performed on 4 types of gochujang samples varying in hot and spicy levels. The sensory attributes developed were 9 odors, 13 flavors, 4 texture and mouth feel attributes, and 4 appearance attributes. In order to select an effective palate cleanser for gochujang, 5 types of cleansers were tested (water, water+bread, water+cucumber, water+milk, water+cracker). Correct answering rate, significant numbers of product effect on sensory attributes, and the mean hot and spicy intensity values were considered to select the optimal palate cleanser. Results showed that as the hot & spicy level increased, red pepper odor and flavor significantly increased whereas umami taste intensity decreased. When comparing the efficiencies of various palate cleanser, the correct answer rates were the highest when warm water was used with either cucumber or cracker. Additionally, the attribute intensities were better differentiated between gochujang samples when cracker, white wheat bread, or cucumber were used. Overall, warm water with cucumber or cracker were shown to be the most effective cleansers.