• Title/Summary/Keyword: T-test analysis

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Influence of Self-esteem and Consumer Socialization Agents on Rational Consumption Behavior of Middle School Students (중학생의 자아존중감과 소비자사회화 영향요인이 합리적 소비행동에 미치는 영향)

  • Lee, Seung Jin;Yu, Nan Sook
    • Journal of Korean Home Economics Education Association
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    • v.31 no.4
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    • pp.115-128
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    • 2019
  • The purpose of this study was to examine the influence of self-esteem and consumer socialization agents on rational consumption patterns of middle school students. Using a convenient sampling method, the data were collected from middle schools in Seoul, Gyeonggi, Chungcheong, Jeonnam, and Gwangju and a total of 412 copies were analyzed. The descriptive statistics, Chronbach's α, t-test, and stepwise regression analysis were performed using the SPSS and the results were as follows. First, rational consumption behavior was 3.18 and self-esteem was 3.54 on a 5-Likert scale. As for consumer socialization agents, parents was the highest at 3.13, followed by school 2.83, mass media 2.78 and peers 2.73. Second, the average comparison of rational consumption behavior and consumer socialization agents by gender showed that there was no gender difference in rational consumption behavior, but in the case of consumer socialization, girls were higher than boys. Third, examining the influence of self-esteem and consumer socialization agents on rational consumption behavior, it was found that the amount of money, mass media, and peers showed an negative effects on rational consumption behavior, while self-esteem and parents showed positive effects on rational consumption behavior. In this regard, middle school students need to have more self-esteem and guide their peers so that their influence can be positive in the home economics class in order to become consumers with rational consumption behavior.

A comparative study on practical ability of specialized subject teacher of vocational education high school by existence of practical test of high school teacher recruitment examination (중등학교 교사 임용시험의 실기시험 유무에 따른 공업계 고등학교 전문 교과 교사의 실기 능력 비교 연구)

  • Lee, Ha-Na;Lee, Byung-Wook
    • 대한공업교육학회지
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    • v.43 no.2
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    • pp.43-60
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    • 2018
  • The purposes of this study are to compare practical ability of vocational education high school, investigate effectiveness of recruitment practical examination, and provide basic data that can be helpful to recruit teaching staffs of occupational training institution in the middle stage and strengthen practical guidance capability of teacher through the analysis by variables of teacher's background. To achieve them, concrete capability areas related to practical ability were conceived and differences of new teacher's abilities were compared between area that fulfilled recruitment practical examination and areas that didn't fulfill. The conclusions of this study are as follows. First, practical abilities among specialized subject teachers of vocational education high school were compared by existence of vocational education high school teacher recruitment practical examination. As a result, the average of practical ability of the group who was fulfilled by recruitment practical examination was somewhat high in all of 5 sub-areas for practical ability, but wasn't significant statistically. Second, the differences of practical ability by background variable among specialized subject teacher of vocational education high school were compared. As a result, the group who possesses national technology licence, existence of short-term teaching career, teaching course completion form of open teacher training showed higher average and it showed significant differences statistically.

Effectiveness of mathematics education through the process-oriented evaluation - Focusing on Geometry and vector subjects - (과정 중심 평가를 통한 수학교과 인성 함양 효과 - 기하와 벡터 과목을 중심으로 -)

  • Kim, Hyunjoo
    • Journal of the Korean School Mathematics Society
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    • v.22 no.4
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    • pp.369-393
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    • 2019
  • The purpose of this study is to find the commonality between process-focused assessment and existing performance evaluation and to find out whether the process-focused assessment is effective for the development of the character of school mathematics. By analyzing the previous research, this study defined the meaning of process-focused assessment as an evaluation that can improve students' growth and quality of class through immediate feedback by introducing various performance tasks and evaluation methods. The character of school mathematics refers to personality factors that are easily expressed and cultivated during math classes. Therefore, this study presented examples of the feasibility of process-focused assessment focusing on geometry and vector subjects and examined the effectiveness of mathematics and character development through process-based evaluation. Four course-based assessments (math experiments, logic, proof, and communication) aimed at cultivating the character of school mathematics were conducted from March to June 2019 for the third year of high school. The index was measured. Analysis of the results using the corresponding variable t-test showed that the process-based evaluation in this study had a significant effect on the character of school mathematics development.

Enhancement of Antioxidant and Whitening Effect of Fermented Extracts of Scutellariae baicalensis (황금 발효물의 항산화 및 미백 효과 증진)

  • Um, Ji Na;Min, Jin Woo;Joo, Kwang Sik;Kang, Hee Cheol
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.43 no.3
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    • pp.201-210
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    • 2017
  • Scutellariae baicalensis (S. baicalensis) has been traditionally used for anti-inflammatory effect. This study was designed to compare the antioxidant and whitening effects of S. baicalensis extract and its fermented extract by Leuconostoc mesenteroides (L. mesenteroides). Fermented extract of S. baicalenins was prepared by inoculation of L. mesenteroides after the extraction procedure with 70% ethanol. S. baicalensis extract and its fermented extract was investigated via high-performance liquid chromatography (HPLC). Simultaneous qualitative analysis of two bioactive components; baicalin and baicalein was achieved by comparing their retention times ($t_R$) and UV spectra with those of the standard components. Cell viability test results indicated that both S. baicalensis extract and its fermented extract were non-toxicity. In DPPH radical scavenging ability, $SC_{50}$ values of the fermented extract was $34.43{\mu}g/mL$ as a result of more effective than S. baicalensis extract. In nontoxic concentration rage, fermented extract of S. baicalensis showed strong melanin production inhibitory effect in ${\alpha}$-melanocyte stimulating hormone (MSH)-stimulated B16F10 cell ($IC_{50}=68.17{\mu}g/mL$). These results suggested that fermented extracts of S. baicalensis has considerable potential as a cosmetics ingredient with an antioxidant and anti-wrinkle and whitening effects.

Effect of Isoquercitrin-containing Nelumbo nucifera Leaves Extract on Skin Wrinkle Improvement (Isoquercitrin 함유 연꽃잎 추출물의 피부주름개선 효능 연구)

  • Moon, Eunjung;Jeon, Junmyeong;Lee, Gahee;Baik, Minyoung;Lee, Dae Woo
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.44 no.2
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    • pp.191-200
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    • 2018
  • In this study, we conducted research to find anti-wrinkle skin care ingredients from natural sources via the measurement of procollagen type 1 levels in the medium of normal human dermal fibroblast (NHDF) and found that a Nelumbo nucifera leave extract (NLE) was as the best effective ingredient. By the high performance liquid chromatography analysis, we confirmed isoquercitrin was one of the main compounds of NLE. Moreover, it also increased the procollagen type 1 production without cytotoxicity of NHDF. NLE and isoquercitrin exerted free radical scavenging activity. Especially, isoquercitrin exhibited strong intracellular antioxidant capacity in human skin-derived cells, HaCaT and NHDF. Finally, we performed clinical test for the inhibitory effect of NLE on skin wrinkle formation. A randomized study was conducted in 22 healthy female volunteers, aged between 30 and 65 yrs, with moderate to moderately severe facial wrinkles. Volunteer applied a 1.7% NLE cream (isoquercitrin 51 ppm) and a control cream at each facial side (left/right) twice daily for 8 weeks. The 1.7% NLE cream improved skin roughness through reducing the wrinkle of the craw's feet significantly without any skin side effect. Our results demonstrate that NLE and isoquercitrin can increase the collagen production and exert antioxidant activity. Therefore, we expect that the new non-toxic herbal extract, isoquercitrin-containing NLE will be interesting natural ingredient of cosmetics with anti-wrinkle efficacy.

A Study on the Effects of the Stress Coping Method on the Periodontal Disease (스트레스 대처방법이 치주질환에 미치는 영향)

  • Ryu, Hae-Gyum;Kim, Han-Gon
    • Journal of dental hygiene science
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    • v.12 no.5
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    • pp.469-476
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    • 2012
  • The purpose of this study to grasp the effects of the stress coping method on the periodontal disease in order to provide raw data for the studies on the development of the training for effective stress copying method resulting in improvement in prevention, occurrence, and progression of periodontal disease. Data were collected from total of 326 subjects in their forties and fifties, during the period from March to October 2011. Using questionnaire and examination of periodontal health, and were analyzed using frequency, t-test, multivariate analysis of variance, multiple regression by SPSS ver. 19.0 (IBM Co., USA). The higher emotion-focused stress coping ($\beta$=0.341), the higher the gingival index, the higher the emotion-focused stress coping ($\beta$=0.239) the deeper the pocket depth, the higher the emotion-focused stress coping ($\beta$=0.158) the higher clinical attachment loss, showed statistically significant positive association. This study suggests that the dental clinic institute needs to implement education program including stress management and coping method improvement in order to prevent periodontal disease and make the occurrence and progression to be managed by professionals.

A Study on the Eating Behaviors and Characteristics of Consumption Propensities on Dining out as Perceived by Silver Generation in Seoul (서울지역 실버고객들의 외식식습관과 소비행동 속성에 관한 연구)

  • Choi, Mi-Sook;Kim, Dong-Ho;Park, Hyo-Nam;Kim, Seong-Su
    • Culinary science and hospitality research
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    • v.21 no.1
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    • pp.250-266
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    • 2015
  • This study concentrated on the dining out consumption behaviors, dining out selection attributes, and changes in eating habits of silver generation. Total 216 residents in metropolitan area were employed for statistical analysing. The results are as follows. First, as the result of t-test and ANOVA showed that female and higher academic background tended to regularly take high level of fruits, vegetables, meat, and fish eating habits. These results identified that dining out culture and dietary lifestyle are closely linked. Second, as the result of difference in dining out consumption attitudes on eating habit of silver generation, consumers who have better eating behaviors tended to consider the physical environment, variety of menu, and service quality when they choose a restaurant. Third, as the result of analysis on changes in dining out consumption behavior based on eating behavior of silver consumers, groups differences were found from only the source for information on dining out business and standard variable in selection of dining out business. Fourth, physical environment, variety of menu, business quality, and service were indicated as significant selection attributes of dining out among silver peoples. Fifth, dining out consumption behaviors of silver consumers were developed through newspapers, magazines, and previous visiting experiences. In conclusion, the results of present study showed that silver consumers tend to select a restaurant based on word-of-mouth and various factors related to experiences. Hence, various promotional activities are necessary for the business succession.

Analysis of The Perception of Effectiveness and Satisfaction According to Learners' Background Variables and Characteristics in Online Gifted Education Program (온라인 영재교육 프로그램에서 학습자 배경변인과 특성에 따른 효과성 인식과 만족도 차이 분석)

  • Chae, Yoojung;Lee, Sunghye;Park, Sung Hee
    • Journal of Gifted/Talented Education
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    • v.26 no.4
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    • pp.611-633
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    • 2016
  • This study analyzed the perception of effectiveness and satisfaction according to learners' background variables and characteristics in online gifted education program. The participants included 630 middle and high school students who attended the 3-months online gifted program. Participants volunteerly surveyed on background and characteristics such as gender, grade, subjects, self-efficacy of internet, and self-regulated learning, and the effectiveness and satisfaction of the online gifted education program. T-test, ANOVA, and MANOVA were conducted to analyze the effect of students' background and characteristics on various dependent variables. The results of this study showed that (1) overall, participants perceived the effectiveness of the online gifted program positively; (2) participants perceived the satisfaction of the online gifted program positively. In specific, they perceived system satisfaction higher than interaction satisfaction. (3) the personal characteristics which impacted on both effectiveness and satisfaction were grade, self-efficacy of internet, and self-regulated learning. Suggestion for the online gifted education program were discussed.

Basic Investigation for Publicity of Korean Occupational Therapy (장애인을 위한 주거환경개선 기초조사)

  • Jang, Jong-Sik;Kim, Tae-Hwan;Kim, Ji-Hyun
    • The Journal of Korean society of community based occupational therapy
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    • v.5 no.1
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    • pp.45-53
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    • 2015
  • Objective : The purpose of this study is to investigate the awareness and interest rate of residential environment and to establish basic data for further development of occupational therapy through the results. Methods : This survey was conducted between April 1th and May 31st 2015 and 165 questionnaires were public. The questionnaires of 165 respondents were analyzed through Cosstabs, Descriptive statistics, Frequency study and t-test, ANOVA analysis using SPSS ver. 18.0 Results : Looking for recognition percentage of residential environment improvement, 44.8% of people reply the changing the house structure and 26.8% of people reply the cure method. in contrast to 28.5% of people reply the architect, the only 9.1% of people reply occupation therapist. the most people agree that residential environment improvement is important. but there is no difference about answer between sex and age. 5.9% of people reply that improving live environments may be good for improving life quality but 7.6% of people reply independency may increase, it is not important because it must need lot of money for improving live environments Conclusion : The awareness of the residential environment improvement in short supply, but Things that are significant in the distance, the need for further residential environment improvement was broad consensus. residential environment improvement for people with disabilities in economic assistance and occupational therapists and incursion of correlated to require institutional support.

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A Study on Parent -and StepParent- Figure Percieved by Korean Children with the Knowledge about the related Fairytables (동화내용을 인지한 아동이 지각한 친부모상 및 계부모상의 차이 -콩쥐팥쥐, 장화홍련, 신데렐라 및 백설공주를 중심으로)

  • 유안진
    • Journal of the Korean Home Economics Association
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    • v.34 no.3
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    • pp.291-303
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    • 1996
  • Generally fairytales are recognized as very effective educational materials. However, some of them includes negative prejudices on stepparents, especially stepmother. These contents are very harmful to development and adjustment of children in remarried families. Moreover, not so many studies have been done that even the results were insufficient to not only practical but also academical needs. Therefore this study purposed to investigate the parent -and stepparent- figures perceived by children with the knowledge about the related fairytales. Specific research problems are as follows; 1. How many children do know the contents of the 4 related fairytales such as Snow Whit, Sindellera, Kongjui Patjui and Changwha Honglyun? 2. What are the parent -figures perceived by the children with the knowledge about the 4 traditional fairytales? 3. What are the stepparent- figures of the subjects? 4. Is the children's sex the statistically significant variable in their parent -and stepparent- figures? 5. Is the children's age the statistically significant variable in their parent -and stepparent- figures? 6. Is the their parents' educational level the statistically significant variable in their parent -and stepparent- figures? 175 boys and girls of age -9 and- 11 were selected from 2 primary schools in Seoul. All of them were from normal families. As the steadyselling books, 18 fairytales were chosen by 7 booksellers of large scale bookstores in Seoul. And then by 10 teachers and 10 literay persons, 4 Korean and foreign traditional fairytales were seleced at last. The questionaire of 5 subareas was developed and used as the research tools, in which include 40 items. SPSS/pc program were used for data analysis for frequency, percentile, mean, and t-test. The followings are the findings with cronbach α=.80 and .94 parent -and stepparent- figures respectively. 1)The contents of the 4 tradional fairytales were read already or wellknown, even if the children who didn't. 2)The subjects showed very positive their own parent-figures such as sweet, lovely, reliable, and true or good person. 3)The subjects showed very negative stepparent-figures in contrast. 4)They showed significant sex difference(p<0.5) in their own parent-figures. And girls were more positive than boys who were a little more positive(on insignifficant level) than girls in stepmother-figures. 5)All the subjects had positive parent-figures and negative stepparent-figures. 6)Their parents education level was no significant variable in the prediction of their parent -and stepparent- figures.

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