• Nutrition Research and Practice
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• v.10 no.2
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• pp.237-244
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• 2016

BACKGROUND/OBJECTIVES: The current South Korean government policy on food irradiation technology should be reformed based on an in-depth investigation of the communications aspect, because the issue is no longer of a technological nature, given the proven safety and efficacy of the processes. SUBJECTS/METHODS: The target population of the education program consisted of elementary, middle, and high school students attending 310 schools in South Korea (2013: 63 schools, 2014: 104 schools, 2015: 143 schools). Data subjected to analysis were 13,327 pre-education and 12,641 post-education questionnaires received from 7,582 elementary, 2,671 middle, and 3,249 high school students who participated in the education program from May 2012 to April 2015 (n = 12,831), after the exclusion of inadequately filled-in questionnaires. RESULTS: Analysis of the three-year educational effect trend was conducted by comparing levels of variables before and after food radiation education. The analysis yielded the finding that the post-education levels were significantly higher for all variables. That is, for interest in education, perception (necessity, safety, subjective knowledge, and information acquisition), objective knowledge, and attitude, with the sole exception of objective knowledge in 2013. CONCLUSIONS: Given that post-education levels of perception, knowledge, and attitude concerning irradiated foods increased considerably compared to pre-education levels, behavior change should be induced by providing continuous education to enhance, these primary variables.

• Journal of Korean Biological Nursing Science
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• v.24 no.4
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• pp.253-261
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• 2022

Purpose: This study aims to identify the knowledge, risk perception, fear, self-efficacy, and preventive behaviors among nursing students, and factors influencing preventive behaviors on COVID-19. Methods: Data was collected from March, 2022 to May, 2022. The participants included 218 nursing students in their 3rd and 4th grade of three universities in two cities. Results: The knowledge of COVID-19 was 13.54 out of 15 points, risk perception was 4.83 out of 8 points, fear was 13.26 out of 35 points, self-efficacy was 19.96 out of 25 points, and preventive behaviors were 7.56 out of 9 points. The explanatory power of self efficacy (β= .21, p= .002), which affects preventive behaviors was 67.0%. Conclusion: Based on the results of this study, it is necessary to develop a systematic nursing intervention that improves self-efficacy to improve preventive behaviors against COVID-19 among students. This study's result can be used in the future to develop appropriate health policies and program to prevent emerging infectious diseases.

• Journal of Global Scholars of Marketing Science
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• v.18 no.2
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• pp.47-64
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• 2008

It is well known that consumer's quality perception is strongly affected by price. Higher priced products tend to be perceived to have better quality than lower priced products although the objective product quality is the same. However, it is less known the process through which quality perception is affected by price cues. The existing literature suggests three potential hypotheses (i.e., the selectiveprocessing hypothesis, the selective interpretation hypothesis, and the representativeness heuristic hypothesis) that explain the underlying processes of the price-induced quality perception. The current research tests among the three competing hypotheses and also examines the role of consumer knowledge as a moderating factor. An experiment was conducted to test the moderating role of the knowledge in the price-quality relationship and to investigate the underlying process. The results indicate that theinfluence of price on perceived quality differs between novices and experts. Expert consumers' quality perception is not significantly influenced by price and this finding is consistent with the extant literature. On the other hand, novice consumers' quality perception is affected by price and the tests on the underlying process support for the representativeness heuristic hypothesis. Novice consumers assess that a high-priced brand should have good product quality due to the belief that high (low) price brands represent better (worse) brand quality and such a representativeness heuristic occurs without involving selective attention or selective interpretation price-consistent information.

• Korean Journal of Cognitive Science
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• v.28 no.3
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• pp.133-147
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• 2017

Human perception is an outcome of the influence of various factors rather than objective reflection of external environment. Among the factors, action-specific perception is a phenomenon where perception changes in terms of one's ability to act on the environment. Previous research reported contradictory results regarding whether action-specific perception occurs during performance or after performance due to memory distortion or knowledge about performance results. In this research, we conducted three experiments to determine when action-specific perception occurs. Participants threw darts at different distances and reported perceived size of targets in each trial. The results showed that, in Experiments 1 and 2, participants perceived targets larger when they hit than missed the targets, and the effect was greater when the targets were not visible after each throw. However, because participants had knowledge about the results of their throws, there could have been bias in participants' responses. In Experiment 3, where this possibility was excluded, we also obtained action-specific perception, and therefore concluded that action-specific perception occurs during but not after task performance.

• Environmental Analysis Health and Toxicology
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• v.17 no.4
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• pp.315-324
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• 2002

Risk communication can be defined as the exchange of information about the nature, magnitude, significance, acceptability, and management of risk. The effect of risk communication on the perception and knowledge towards risk of environmental pollutants and it's related factors were investigated in this study. To investigate perception and knowledge of students and teachers towards risk of environmental pollutants, we conducted the survey using self-administrated questionnaire. The subjects were 574 for the first survey and 465 for the seconds survey from May to June, 2000. The main methods of transmission used in this study- through video tape, visual materials, question and answer, and participation in measuring pollutants - were not a one - way street. But an interactive process where information and opinions were exchanged among individuals, groups, and institutions. Environmental pollutants measured with participation of study subjects was Radon in the class room. The concentration of Radon was measured using E -PERM Device by installing it at each site for about 5 days. Subjects showed much interest in environmental pollution. Also, more than 98％ of total subjects were perceived as Korea is seriously contaminated at present. By risk communication activity, risk perception of all subjects about Radon was increased, on the other hand, risk perception of Dioxin was decreased except for elementary student. Moreover, knowledge of all subjects about environmental risk was significantly increased (p =0.0001) and effort of reducing environmental pollution was more increased (p<0.05). There is need to further develop, refine, and integrate these approaches environmental risk communication study, there is an even more pressing need to accelerate the diffusion of environmental risk communication practice into government and organizations.

• Journal of The Korean Association For Science Education
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• v.34 no.7
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• pp.625-634
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• 2014

This study has investigated the factors that make a science teacher effective by analyzing students' perception of teacher knowledge required in enhancing their science learning. The basic components of teacher knowledge identified by previous researchers have been confirmed through Exploratory Factor Analysis (EFA). Based on the findings of the EFA, the questionnaire has been further analyzed using Confirmatory Factor Analysis (CFA) by means of Structural Equation Modeling (SEM). In addition, the differences in students' perception on the identified factors of effectiveness have also been analyzed in terms of gender and achievement level. The findings of the EFA showed that five factors of science teacher effectiveness were identified; namely, substantive knowledge, syntactic knowledge, knowledge of students' understandings, knowledge of instructional strategies, and knowledge of assessment. These five components have been divided into two categories of teacher knowledge, SMK and PCK. What we found from the CFA was the respective high correlation between substantive and syntactic knowledge, knowledge of students' understanding and instructional strategies and the low correlation between substantive knowledge and knowledge of instructional strategies. Students perceived substantive knowledge as the most effective factor, knowledge of assessment as the least effective factor. Also, there have been considerable differences in students' perception by gender and achievement level. We proposed, based on the findings, that SMK and PCK need to be integrated into a coherent manner for the effective science teaching practice. This study provides some implications for science teacher professional development and the improvement of science teacher preparation program.

• Journal of Hospice and Palliative Care
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• v.21 no.3
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• pp.92-103
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• 2018

Purpose: This descriptive study was conducted to examine factors that affect hospital workers in their decision to withdraw from life-sustaining treatment, such as knowledge, attitude, and perception of organ donation, transplantation, death and hospice palliative care. Methods: A questionnaire was completed by 228 workers of a tertiary general hospital, and data were analyzed using t-test, ANOVA, and Pearson's correlation by using SPSS 21.0. Results: The subjects' knowledge of biomedical ethics awareness differed by age, education level, occupation, affiliated department, and biomedical ethics education. Their knowledge of brain death, organ donation and transplantation was positively correlated with attitudes toward tissue donation and transplantation, knowledge of hospice palliative care, and perception of hospice palliative care. Their attitudes toward tissue donation and transplantation were significantly correlated with knowledge of hospice palliative care, perception of hospice palliative care, and withdrawal of life-sustaining treatment. Their awareness of death was significantly correlated with knowledge of hospice palliative care, perception of hospice palliative care and withdrawal of life-sustaining treatment. The perception of hospice palliative care was significantly correlated with withdrawal of life-sustaining treatment. Factors associated with their withdrawal of life-sustaining treatment were work at the hospice ward (32.5%), attitudes toward tissue donation and transplantation and perception of hospice palliative care. Conclusion: This study has shown that work at the hospice ward, attitudes toward tissue donation and transplantation and perception of hospice palliative care were related to attitudes toward withdrawal of life-sustaining treatment. More research is needed to further develop various curriculums based on biomedical methods.

• The Korean Journal of Emergency Medical Services
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• v.26 no.2
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• pp.47-59
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• 2022

Purpose: This study aimed to survey coronavirus disease (COVID-19) related knowledge, preventive possibility, and preventive behaviors levels among college students and identify the correlation between these variables. Methods: An online survey was conducted among college students from October 25 to November 5, 2021. The data were analyzed by an independent t-test and Pearson's correlations. Results: A total of 344 college students participated. The correct answer rate for COVID-19 knowledge level was high, infection and preventive possibility levels were moderate, and the anxiety level was high. Infection possibility had a positive correlation with anxiety and preventive behaviors had a positive correlation with preventive possibility. Conclusion: The findings regarding COVID-19 perception can be used to develop appropriate health policies for infectious disease prevention behaviors in educational fields.

• Journal of dental hygiene science
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• v.5 no.1
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• pp.1-5
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• 2005

Ethical perception may be thought of as 'professional skills'. Despite this, however, the dental hygiene curriculums tend to disregard ethics education. This paper describes ethical perception in dental hygiene students. Questionnaire surveys were conducted for 374 in dental hygiene students. For statistical analyses of collected data, the multiple linear regression were adopted. Demand as necessity of dental ethics education, clinical practice exercise, practice of work ethics education were found to have significant major effects on basic ethics perception. The major variables which related to the licensure and health care law and teamwork were to knowledge of revised ethics code of dental hygienist and to demand as necessity of dental ethics education. The major variables influencing the professional protocol were to knowledge of revised ethics code of dental hygienist, to demand as necessity of dental ethics education, role model for learning ethical principles. Revised ethics code of dental hygienist was the most important factor affecting professional protocol. The major variables influencing the decision-making were to demand as necessity of dental ethics education, to knowledge of revised ethics code of dental hygienist, clinical practice exercise, role model for learning ethical principles (church). About 88.4% of the students unawared to knowledge of revised ethics code of dental hygienist and perception of professional protocol of the students awared to knowledge of revised ethics code of dental hygienist was $3.44{\pm}0.23$ (p=0.000).

• Environmental Analysis Health and Toxicology
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• v.20 no.2 s.49
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• pp.97-108
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• 2005

This study is to estimate differences, relationships and related factors of environmental risk perception and perceived benefit among residents and workers. A self-administered questionnaire survey using a structured instrument was carried out to residents and workers in industrial area during April, 2002. Total number of participants were 657 including 329 residents and 328 workers. Participants assessed environmental risk perception, self- assessed knowledge, trust in authorities and perceived benefit associated with 10 products manufactured in industrial area. There were difference in environmental risk perception, knowledge and trust in authorities and perceived benefit among residents and workers. Especially, trust in authorities and perceived benefit were statistically significant difference among residents and workers. Inverse relationships between environmental risk perception and perceived benefit have been observed for different products. In other words, the greater the perceived benefit, the lower the perceived risk, and vice versa. Factors mostly associated with participant's characteristics of environmental risk perception were age. marriage status (workers), education level (workers). There was statistically significant difference. Perceived benefit was statistically significant difference with sex, marriage status, residence duration, education level (workers). Related factors of environmental risk perception among residents and workers were age, trust in authorities. And factors affecting the perceived benefit were sex, age, education level (workers), and trust in authorities (workers). According to the results, people having high trust in the authorities perceived less risks than people having low in the authorities. To improve the communication of risk information, further study focus on assessment of experts, government and stakeholder in industrial area. Methodologies of this study can be used as the basis for investigating the structure of public perception of environmental products risks and benefit, designing a public information and risk communication program, and developing policy actions to improve acceptance.