• Korean Journal of Social Welfare
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• v.58 no.4
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• pp.265-289
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• 2006

Purpose of this research is to analyze process that poverty influences in academic attainment of children. Data comes from Korea Youth Panel Survey 2004(Primary School 4). Analysis method is Structural Equation Modeling. Results show that poverty influences through process variable such as family function, neighborhood environment, private education, self-confidence. Findings from this study suggest that societal support for poor families contributes to improving academic attainment of child. Specially, such societal support needs to be centered to factors that mediates factor of poverty.

• Asia pacific journal of information systems
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• v.10 no.3
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• pp.159-180
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• 2000

As the importance of electronic commerce(EC) increases, some people argue that traditional commerce(TC) will ultimately give way to EC in the near future. Regardless of the type of commerce, however, it is the value factors of the customer that would formulate the direction of change in the market. This study investigates the influence of those value factors upon the attitude towards the type commerce and the repurchase intention of products and service. It also addresses the impact of the customer's risk disposition and level of confidence. A number of customer's value factors are hypothesized to affect the attitude, and the attitude in turn is expected to be related to the repurchase intention. Based on two hundred and ninety responses from the computer survey, the hypotheses are tested. The convenience, cost reduction, and information satisfaction factors affect EC attitude and repurchase intention. Similarly, the reliability, personal interaction, and shopping enjoyment factors affect TC attitude and repurchase intention. The comparison between EC and TC factors indicates the significant difference in the time saving factor in favor of EC. The personal characteristics such as risk disposition and level of confidence also influence the attitude and repurchase intention. The implications and limitations of this study are discussed. The value factors identified in this study may serve as important checklists for those firms already in EC and those intending to enter the market.

• Journal of Digital Convergence
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• v.6 no.2
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• pp.145-155
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• 2008

The purpose of this research is to investigate the effects of the Cyber Home Learning Motivation Factors on its satisfaction and activation through surveying the actual conditions among the students present at a cyber home learning class. For this study, samples were collected around the end of a term from the students(300 in pilot test and 248 in main test) who were taking Cyber Home Lecture at high school level. Structural equation model by AMOS 5.0 was used to analyze the data. The result of our analysis is summarized as follows. First, the cyber home learning satisfaction has a positive effect on the cyber home learning activation. Second, the 4 factors of the cyber home learning motivation: relevancy, self-confidence and satisfaction has a positive effect on the cyber home learning satisfaction. But the factor 'attention' has no positive effect on the cyber home learning satisfaction. Therefore, the Good Cyber Home Learning Contents should provide the information quality which meets 3 conditions: relevancy, self-confidence and satisfaction.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.13 no.3
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• pp.77-82
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• 2014

In this study, we carried out the interrupted cutting of carbon steel for a machine structure (SM45C) with a CVD-coated tool and conducted an ANOVA test and a confidence interval analysis to find factors influence the surface roughness and to obtain a regression equation. We found that factor which mostly affects the surface roughness during interrupted cutting was the feed rate. The cutting speed and depth of the cut only had small effect on the surface roughness. From the result of a multi-regression analysis during an interrupted cutting experiment, we obtained regression equation. Its coefficient of determination was 0.918, indicating that the regression equation was predictable. Compared to continuous cutting, if the feed rate increases, the surface roughness will also increase during interrupted cutting.

• Preventive Nutrition and Food Science
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• v.13 no.4
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• pp.348-353
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• 2008

Aerobic bacterial growth on Korean pan.fried meat patties as a primary quality deterioration factor was modeled as a function of temperature to estimate microbial spoilage on a real.time basis under dynamic storage conditions. Bacteria counts in the stretch.wrapped foods held at constant temperatures of 0, 5, 10 and $15^{\circ}C$ were measured throughout storage. The bootstrapping method was applied to generate many resampled data sets of mean microbial counts, which were then used to estimate the parameters of the microbial growth model of Baranyi & Roberts in the form of differential equations. The temperature functions of the primary model parameters were set up with confidence limits. Incorporating the temperature dependent parameters into the differential equations of bacterial growth could produce predictions closely representing the experimental data under constant and fluctuating temperature conditions.

• Fashion & Textile Research Journal
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• v.13 no.4
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• pp.572-581
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• 2011

The purpose of this study was to investigate the effect of duty free shop consumers' store benefits sought and fashion merchandise shopping orientation on store satisfaction. Survey data were collected from questionnaires filled out by 194 domestic consumers who had purchase experience of fashion goods in duty free shops located in Korea. The data were analyzed by reliability analysis, factor analysis, and multiple regression analysis. The results of this study were as follows: First, the store benefits sought was categorized into five factors such as pursuit of convenience, salesperson/atmosphere, promotion, product quality, and product fashionability/variety. The fashion merchandise shopping orientation was categorized into six factors such as pleasure orientation, pursuit of fashion, pursuit of brand, planned orientation, pursuit of confidence, and convenience orientation. The store satisfaction was categorized into six factors such as atmosphere/reputation of store, promotion, product fashionability/variety, convenience, price, and salesperson. Second, the store benefits sought, composed of pursuit of convenience, salesperson/atmosphere, promotion, product quality, and product fashionability/variety, had an effect on the store satisfaction. Third, the shopping orientation such as pleasure orientation, pursuit of fashion, pursuit of brand, and planned orientation, with the exception of pursuit of confidence and convenience orientation, had an effect on the store satisfaction.

• Journal of Korean Society of Occupational and Environmental Hygiene
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• v.9 no.2
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• pp.79-89
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• 1999

A quantitative fit test, condensation nuclei counting (Portacount 8025, TSI), was performed concurrently with a banana oil (isoamyl acetate: IAA) qualitative fit test (MSA) to evaluate reliability on IAA QLFT and correlation between two methods. One brands of quarter mask (3M model 7500 medium) was prepared for QLFT with HEPA filter and gas & vapor removing media, i.e., combination cartridge. 110 subjects (65 male, 45 female) were fit tested QNFT and QLFT each three times. For a wearer combination having a FF<10, as determined by CNC QNFT, the point es timate (${\beta}$-error) of the probability of that combination not being rejected by the banana oil QLFT was found to be 0.0 with 95% confidence that this statistic is not expected to exceed 0.15. For a wearer combination having a FF<100, as determined by CNC QNFT, the point estimate of the probability of that combination not being rejected by the banana oil QLFT was found to be 0.07 with 95% confidence that this statistic is not expected to exceed 0.13. The uncertainty associated with each estimate, however, is large due to the small number of study subjects with inadequately fitting respirators.

• Journal of Families and Better Life
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• v.19 no.5
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• pp.189-202
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• 2001

The purpose of this study was to investigate the effects of perceived parents-adolescent communication style on adoescent’s self-efficacy. The subjexts of this study were 625 students selected at random from first and second grade of high school in Daegu. A questionnaire was used as survey method. Factor analysis, MANOVA and cluster analysis for data analysis and Scheffe test for post-hoc analysis were employed. The man findings were as follows: Firs, there were significant differences in the degree of adolescent’s self-efficacy according to perceive father-adolescent communication style. In case that adolescents perceived their father’s communication style as reasonable, the degree of self-control, self-confidence and attribution were higher than those of other cases such as non-interferential or impulsive communication style. The adolescents who perceived the father’s communication style as reasonable showed higher preference of difficult task than those who perceived it as non-interferential style. The adolescents who perceived father’s communication style as reasonable and non-interferential showed higher attribution than those who perceived it as impulsive style. Second, there were significant differences in the degree of adolescent’s self-efficacy according to perceived mother-adolescent communication style. In case that adolescents perceived their mother’s communication style as reasonable, the degree of self-control was higher than that of other cases such as non-interferential and impulsive communication style. The adolescents who perceived their mother’s communication style as reasonable showed higher self-confidence than those who perceived as impulsive style.

• Journal of the Korean Home Economics Association
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• v.37 no.11
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• pp.1-17
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• 1999

The purpose of this study was to investigate 1) the effects of clothing styles on impression formation of middle and high school students and 2) the differences in impression in relation to perceiver variablex(sex, age, residence). The sample consisted of 60 subjects in each of 8 perceiver groups according to sex, age and residence. Stimuli consisted of 10 color photographs of male and female adolescent wearing each of 5 clothing styles respectively. Questionnaires consisted of 43 seven-point semantic differential scales measuring perceivers responses to the stimuli, open-ended Question and perceiver’s clothing style preference. Responses to the semantic differential scale were factor analyzed and 4 factors - Self-confidence/refinement, Sincerity, Intelligence, and Sociability - were emerged to account for the structure of the impression of the male stimuli. Five factors - Sincerity, Refinement, Self-confidence, Sociability, Intellience - were emerged in case of female stimuli. One-way ANOVA results showed that clothing styles had the effects on all the factors of impression except Sincerity. From the reset analyzing the effects of perceiver variables on impressions, age had the effects in all the clothing styles, sex had the effects in 6 clothing styles, and residence in 5 clothing styles. Clothing style 5(male stimuli) and style 10(female stimuli) were the most preferred clothing style in all the subject groups.

• Nutrition Research and Practice
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• v.15 no.3
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• pp.346-354
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• 2021

BACKGROUND/OBJECTIVES: While the use of food additives in food processing has become a common practice worldwide, consumers' worry about potential hazards has not diminished. The purpose of this study was to identify trends in South Korean parents' perceptions about food additives by analyzing the results of surveys conducted from 2014 to 2018. SUBJECTS/METHODS: We conducted an off-line survey in Korea annually between 2014 and 2018 on perceptions about food additives. The numbers of survey respondents in each year from 2014 to 2018 were 381, 426, 301, 519, and 369, respectively. Our consumer respondents were parents of elementary-school-aged children. RESULTS: The ratios of respondents perceiving "food safety" as the most important factor in purchasing processed foods and "food additives" as the biggest threat to food safety have decreased over the years. However, most consumers still have negative perceptions of food additives. Additionally, among consumers lower confidence in or trust of the Korean government continued throughout the study period and appeared to be the main problem that needs to be overcome. CONCLUSIONS: This study found that Korean parents are still troubled by food additives. Consumers' confidence in the government needs to be increased through public communications. More multifaceted educational programs communicating scientific knowledge of food additives are needed in order to correct consumers' misperceptions.