• Economic Analysis
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• v.17 no.2
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• pp.27-55
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• 2011

Although many theoretical studies have tried to explain the volatility in financial markets using models of herd behavior, there have been few empirical studies on dynamic herding due to the technical difficulty of detecting herd behavior with time-series data. Thus, this paper theoretically extends a continuous beliefs system belonging to an agent based economic model by introducing a term representing agents'mutual dependence into each agent's utility function and derives a SV(stochastic volatility)-type econometric model. From this model the time-varying herding parameters are efficiently estimated by a Markov chain Monte Carlo method. Using monthly data of KOSPI and DOW, this paper provides some empirical evidences for stronger herding in the Korean stock market than in the U.S. stock market, and further stronger herding after the global financial crisis than before it. More interesting finding is that time-varying herd behavior has weak autocorrelation and the global financial crisis may increase its volatility significantly.

• The Journal of the Convergence on Culture Technology
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• v.9 no.6
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• pp.137-144
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• 2023

The purpose of this study attempted to investigate the degree and relationship of health knowledge, health beliefs, and preventive health behavior of public health center officials and provide basic data to develop measures to promote preventive health behavior of public health center officials. Factors affecting health behavior were identified as sub-factors of health beliefs: benefit (β = . 298), severity (β = . 193), and trigger for action (β = . 183). The explanatory power of preventive health behaviors between these variables was found to be 33.9%. This study was attempted in the absence of research on COVID-19 knowledge, health beliefs, and preventive health behaviors among public health center officials, and objective observation or qualitative research that could supplement the limitations of self-reported questionnaires was conducted to 19 Research exploring the meaning of preventive health behaviors is needed.

• The Journal of Korean Society for School & Community Health Education
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• v.21 no.2
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• pp.39-57
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• 2020

Objectives: This study was to develop a measurement scale that explains aggressive regulation behavior of middle school student, based on Ajzen's Theory of Planned Behavior (TPB) and verify its validity and reliability. Methods: The basic items were modified by selecting 41 items of middle school student aggressive behavior measurement scale. Through the content validity test, 63 first preliminary question items and 42 second preliminary question items were developed. The participants were 286 middle school students. The collected data were analyzed using content validity, correlation coefficient, exploratory factor analysis, confirmatory factor analysis, reliability and Cronbach α. Results: In this study, it was proved that the most important variable showing aggressive regulation behavior was aggressive regulation intention. This study was composed of 4 factors for direct measurement(attitude toward the behavior, subjective norm, perceived behavioral control, behavior intention) and 5 factors for indirect measurement(behavioral beliefs, outcome evaluation, normative beliefs, motivation to comply, control beliefs). The total variance was 65.4% and 67.6%, respectively, and the reliability was .90, .82. Finally, 42 questions were developed. Conclusion: We found the questionnaire used in this study was valid and reliable as a measure scale to explain the aggressive regulation behavior of middle school student based on TPB. Therefore, it is concluded that the aggressive regulation behavior scale could be a useful scale for the measurement of the aggressive regulation behavior of middle school student.

• Journal of Gifted/Talented Education
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• v.24 no.5
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• pp.877-892
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• 2014

This Study was to examine whether high school students' autonomy support and beliefs of intelligence ability influence their self-regulated strategies. Of the 600 high school students surveyed from 3 high schools in two metropolitan cities, Korea, 478 completed and returned the questionnaires yielding a total response rate of 79.7%. Among the final sample consisted of 109 gifted students (22.8%), 190 high-achieving non-gifted students (39.7%), and low-achieving non-gifted students (37.4%). Measures of students' perceived autonomy support (i.e. from parents, teacher, peer), beliefs of intelligence ability (i.e. incremental, entity) and self-regulated strategies (i.e. managing environment and behavior, seeking and learning information, maladaptive regulatory behavior). Spearman's rho(${\rho}$) indicated that students' achieving level was positively associated with autonomy support (i.e. parents, teacher), beliefs of intelligence ability (i.e. incremental) and self-regulated strategies (i.e. managing environment and behavior, seeking and learning information). However, students' achieving level was negatively associated with beliefs of intelligence ability (i.e. entity) and self-regulated strategies (i.e. maladaptive regulatory behavior). Hierarchical multiple regression analyses showed that students' perceived autonomy support (i.e. from teacher) and beliefs of intelligence ability (i.e. incremental) were the crucial contributors for enhancing students' self-regulated strategies. Results are discussed in relation to theoretical implications and school settings.

• The Journal of Korean Academic Society of Nursing Education
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• v.28 no.3
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• pp.284-295
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• 2022

Purpose: This study aimed to describe Coronavirus disease 2019 (COVID-19)-related knowledge, health beliefs, anxiety levels, and preventive behaviors among nursing students and to identify factors that influence their preventive behaviors. Methods: A descriptive survey was conducted, targeting a total of 192 nursing students from March 4, 2021 to March 25, 2021. A structured questionnaire was used to identify nursing students' knowledge, health beliefs, anxiety, and preventive health behavior regarding COVID-19. Data were analyzed using descriptive statistics, a t-test, analysis of variance, Pearson's correlation coefficients, and multiple regression. Results: The nursing students' knowledge level was 15.08±1.70 out of 5, and their health belief level was 3.72±0.32 out of 5. These scores were considered high. Their anxiety score was 3.29±3.84 and considered very low. COVID-19 preventive behaviors had a positive correlation with benefits (r=.29, p<.001) and cues to action (r=.28, p<.001). Factors influencing COVID-19 preventive behaviors by multiple regression were identified as health beliefs and living arrangements (F=8.95, p<.001, Adjusted R²=14.3%). Conclusion: The findings suggest that health beliefs and living arrangements could be important factors affecting preventive health behavior in nursing college students during the COVID-19 pandemic. This study highlights the need for appropriate education and widespread awareness campaigns aimed at potential health care professionals about the prevention of new emerging diseases.

• Journal of the Korean Home Economics Association
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• v.49 no.9
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• pp.47-58
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• 2011

This study investigated the relationships among mothers' playfulness, play beliefs and rearing attitude. The participants were 261 mothers with young children. PSA(Playfulness Scale for Adults), PPBS(Parent Play Beliefs Scale), MBRI(Maternal Behavior Research Instrument) were used to collect the data. The data were analyzed by t-test, Pearson's productive correlation analysis, and stepwise multiple regression analysis. The results were as follows: First, mothers' rearing attitude varied by mothers' age, employment status, and educational level. Second, there were significant correlations among mothers' playfulness, play beliefs, and rearing attitude. Third, mothers' playfulness and play beliefs were reliable predictors of rearing attitude.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.2
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• pp.522-528
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• 2021

This is an investigative study to identify the degree of post-traumatic stress and anxiety of nurses in relation to the COVID-19 pandemic, and to analyze the relationship with the nurse's belief in behavior and control that affects nursing intentions to determine their impact on the belief in behavior. The subjects of this study were nurses with experience of directly nursing COVID-19 patients at medical institutions located in Gyeonggi-do. The SPSS 22.0 version was used for the descriptive analysis, independent t-test, one-way ANOVA, Pearson's correlation coefficients and multiple regression. Post-traumatic stress of the participants in this study was found to be 24.20±20.58, anxiety 48.31±6.61, behavior beliefs -1.00±17.12, and control beliefs 3.41±11.66. According to this study, the belief in conduct is negatively correlated with post-traumatic stress (r=-4.71, p<).001) and showed a significant negative correlation with anxiety (r=-2.248, p<.05). There was no significant correlation with control beliefs (p>.05). Based on the results of this study, it is proposed to develop an appropriate psychological arbitration program for mediating post-traumatic stress in order to promote the nurse's behavior beliefs.

• Asian Pacific Journal of Cancer Prevention
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• v.14 no.9
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• pp.5157-5163
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• 2013

The aim of the study was to evaluate of the knowledge, behavior and health beliefs of individuals over 50 regarding colorectal cancer screening, with a descriptive and cross-sectional design at Karabuk Life and Health Center in Turkey. A total of 160 people meeting set criteria were included in the study. The questionnaire consisted of two parts. The first part was composed of questions on characteristics of participants and the second part of questions derived from the Champion's Health Belief Model Scale. Only 15.0% of participants (n=24) had undergone a fecal occult blood test (FOBT), 11.3% (n=18) had had colonoscopy and 4.4% (n=7) had had sigmoidoscopy. Some 90.6% of the participants had low levels of risk awareness about the colorectal cancer. It was found that the average point of severity subscale of participants over 65 is higher than that of participants under 65 (p<0.05). In conclusion, because of the many barriers and health beliefs for the colorectal cancer screening program, the rate of participation in screening programs is not sufficient. Healthcare providers have important responsibilities for increasing rate of attendance in colorectal cancer screening programs.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.8
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• pp.583-592
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• 2021

This study examines social identity and self-identity as the antecedents of the theory of planned behavior (TPB) model in predicting purchase intention of certified coffee, whereas perceived trustworthiness (PT) is evaluated whether it directly affects intention and/or indirectly through attitude. In addition, ethics and luxury are investigated as the salient beliefs affecting attitude formation in this regard. A face-to-face survey was conducted with 727 coffee consumers in Thailand. Confirmatory factor analysis is applied to assess the adequacy of the model, followed by structural equation modeling to evaluate the hypotheses proposed for the relationships between constructs in an extended TPB model. The results confirm that self-identity is the most influential antecedent on attitude when compared to social identity, and attitude, in turn, is the strongest determinant in predicting purchase intention. PT has a direct positive effect on purchase intention, meanwhile, ethical, luxury beliefs, and PT are confirmed to portrait the attitude formation. As such the marketing campaigns can address manipulating consumers' beliefs on both ethical and luxury aspects as well as PT, along with consumers' social identity and self-identity to fortify a positive attitude toward certified coffee. Then the actual purchase behavior can be foreseen based on empirical evidence.

• Journal of Nutrition and Health
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• v.46 no.3
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• pp.276-284
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• 2013

This study compared levels of health and dietary behavior practices and health beliefs according to the stage of weight loss behavior change of Korean male workers. A self-administered survey questionnaire was collected from 411 male adult workers residing in Seoul, Kyeonggi, Chungcheong region. Practices of health related behavior, including smoking, drinking, exercise, work related physical activity, and dietary behavior according to dietary guidelines were evaluated. In addition, the levels of perceived benefit, perceived barrier, perceived susceptibility, perceived seriousness, and perceived cue to action from the health belief model were measured according to the stages of weight loss behavior change. Significant differences in BMI, level of daily exercise, and practices of dietary behavior according to dietary guidelines were observed among stages of weight loss behavior change. Subjects who were in action/maintenance stage showed a more desirable level of health behavior and health belief model variables, except perceived barrier. Based on the findings of this study, it is suggested that subjects with different stages of behavior change need an appropriate specific nutrition education method and material for improvement of nutrition education efficacy.