• Journal of Korean Elementary Science Education
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• v.42 no.4
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• pp.513-522
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• 2023

There is a lack of empirical research on the level of students' state anxiety according to their perceived task difficulty when confronting science questions. This study seeks to investigate whether perceived task difficulty moderates the process of arousing students' state anxiety in science learning. In pursuit of this objective, we engaged 410 fifth- and sixth-grade elementary school students (186 fifth graders; 194 females) in solving two science questions. We then verified the moderating effect of perceived task difficulty on the relationship between science anxiety and state anxiety arousal when confronting science questions using the PROCESS Macro Model 1. Results confirmed that science anxiety and perceived task difficulty significantly and positively predicted state anxiety. Notably, perceived task difficulty had a significant moderating effect on the process of arousing state anxiety, where lower perceived task difficulty led to a greater increase in state anxiety after confronting the science questions. We discuss the implications of the findings for science education and propose potential directions for future research.

• Journal of Digital Convergence
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• v.13 no.6
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• pp.141-150
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• 2015

This study examined the negative influence of ambiguity on the attitude toward ads by using mediating variable, perceived interpretation difficulty. It also tested the moderating effect of thinking style between ambiguity and perceived interpretation difficulty. In results, we found as follows. 1) Perceived interpretation difficulty is higher in case of higher ambiguity than lower one. 2) The influence of ambiguity on perceived interpretation difficulty is moderated by thinking style. 3) Attitude toward ads is more unfavorable in higher perceived interpretation difficulty than lower one. The results of this study may provide the implications that ambiguity ads using digital convergence media has to be connected to positive attitude for being successful and marketing staffs must consider thinking style as a key success factor to establish global advertising strategy.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.40 no.1
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• pp.1-10
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• 2017

The difficulties in opening and closing a sport utility vehicle (SUV) tailgate is important aspect of JD (James David) power's Initial Quality Survey (IQS) assessment, and affective quality has a big impact on the the success of thesedays products. The purpose of this study is to evaluate the perceived difficulty and satisfaction of customers by the opening and closing of the tailgate and to grasp the relationship between them and the opening and closing reaction force. The mechanical force required to open and close 42 domestic and overseas SUV tailgates was measured with the help of an auto company. In the experiment, 100 male drivers in their 20s to 50s evaluated perceived difficulty and satisfaction with opening and closing the tailgate. The results of the analysis showed that perceived difficulty and satisfaction were statistically different depending on the vehicle, but did not depend on the personal characteristics of the participants. The perceived difficulty and satisfaction regression model of tailgate opening and closing was developed by mechanical force variables and had a relatively high adjusted $R^2$ ranging from 0.62 to 0.73. The models showed that the the initial close and open force, the difference between initial and maximum close force and the difference between initial and auto-fall angle should be small for the low perceived exertion and high satisfaction. In addition, the correlation analysis between IQS score of tailages and perceived difficulty and satisfaction showed that the IQS scores were more related to the perceived difficulty and satisfaction of closing than those of opening. The results of the study will be helpful to design and test mechanical open and close structure of SUV tailgates.

• Journal of Convergence for Information Technology
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• v.10 no.3
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• pp.163-175
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• 2020

The study was undertaken to identify in relation stress perceived, perceived physical health status and Chewing difficulty with over 60 years elderly people. The subjects of the study were 10,806 subjects who answered to National Health and Nutrition survey for (2016, 2017). The response of 1,195 subjects were used for the final analysis. Analysis conducted using SPSS version 12.0 included Chi-square test to identify stress perceived, perceived physical health status and Chewing difficulty rate according to subject characteristics and multivariate logistic regression analysis to determined independent significance. Stress perceived was correlated with perceived physical health status(p=-0.252^**), and had a negatively correlation, Chewing difficulty(p=-.150^**). Therefore it is necessary to evaluate as a predictor of health risk for the health promotion of the elderly.

• Korean Journal of Health Education and Promotion
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• v.29 no.1
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• pp.27-38
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• 2012

Objectives: The purpose of this study is to find the influences of the perceived economical difficulty, gender equality consciousness and sexual subjectivity on the adolescents' attitude to prostitution to examine the moderating effects of gender equality consciousness and sexual subjectivity between the perceived economical difficulty and the adolescents' attitude to prostitution, and to provide some recommendations for intervention to improve more appropriate attitude of adolescents on prostitution. Methods: The data used for this study is from the survey with a sample of 1,151 students from 14 middle and high schools in Chungbuk province. Results: The main results of this study are as follows: First, there are statistical differences in the adolescents' attitude to prostitution according to gender, grade, and the type of school. Second, there is a positive effect of the perceived economical difficulty, gender equality consciousness and sexual subjectivity on the adolescents' attitude to prostitution. Third, there are positive moderating effects of sexual subjectivity between the perceived economical difficulty and the adolescents' attitude to prostitution. Conclusions: Intervening in the sex education at an early stage, advertising prostitution's harmful effect at the level of a social concern and developing diverse programs to enhance the sexual subjectivity of students are recommended to promote appropriate attitude of adolescents about prostitution.

• Journal of muscle and joint health
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• v.17 no.2
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• pp.192-202
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• 2010

Purpose: The purpose of the study was to examine the predictive relationships between predictors [(difficulty on daily activities due to arthritis, falls, and pain, grip strength, and activities of daily living (ADLs)], and perceived health in community-living older adults in Korea. Method: A descriptive, cross-sectional survey design was used. Data were obtained from Korean Longitudinal Study of Ageing conducted in 2006. A stratified sample was selected of 5,545 older adults who were over 60 years old for analysis of this study. Descriptive statistics, t-test, Pearson's correlations, and multiple regressions were used. Result: Mean age was 70.27 years (SD=7.27) ranged from 60 and 105 years old. Perceived health was significantly associated with grip strength, and ADL. With multiple regression, all main variables explained 22.1% for perceived health. Difficulty on daily activities due to pain was the strongest predictor on perceived health. Grip strength, ADLs, gender, and difficulty on daily activities due to arthritis and falls were also significant predictors on perceived health. Conclusion: When developing nursing intervention to improve perceived health in older adults, their difficulties on daily activities, grip strength, and ADLs should be assessed.

• Educational Technology International
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• v.20 no.2
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• pp.137-168
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• 2019

This study examined the effects of information volume and distribution on learners' cognitive load and recall in a mobile augmented reality (AR) environment. Information volume refers to the degree of information users are provided in a learning task, while information distribution indicates the way in which information is distributed, either in a virtual or real format. Sixteen undergraduate students participated in the study, which employed a 2 × 3 randomized block factorial design with repeated measures. Information volume and distribution were independent variables, and factors in learners' cognitive load (mental effort, perceived ease of use, and perceived task difficulty) and recall test scores were the dependent variables. Information volume had significant main effects on perceived ease of use and task difficulty, and recall test scores, while information distribution had significant main effects on perceived task difficulty and test scores. A detailed discussion and implications are provided.

• Women's Health Nursing
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• v.29 no.4
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• pp.328-336
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• 2023

Purpose: This study aimed to identify factors influencing the health-related quality of life (HRQoL) of older adult women with sarcopenia. Methods: The study was secondary data analysis using data from the 2019 Korea National Health and Nutrition Examination Survey. The final sample consisted of 142 women aged 60 years and older with sarcopenia and were selected from 8,110 women. The participants was analyzed using complex descriptive statistics, independent t-test, and regression. Results: In terms of HRQoL, three general characteristics were found to be influential, with an explanatory power of 56.0%: difficulty climbing stairs, difficulty working, and perceived health status. Having no or mild difficulty when climbing stairs (B=.20, p=.001; B=.21, p<.001) and no or mild difficulty when working (B=.25, p=. 002; B=.208, p=.013) had a significant effect on HRQoL compared to severe difficulty. Having good or ordinary perceived health status had a significant effect on the HRQoL (B=.11, p<.001; B=.09, p<.001). Conclusion: Based on study findings that the HRQoL of older adult women with sarcopenia were influenced by difficulty climbing stairs and working, as well as good perceived health status, healthcare providers should assist elderly women to maintain physical activities in their daily lives.

• Journal of Korean Elementary Science Education
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• v.40 no.2
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• pp.175-190
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• 2021

The purpose of this study was to find out how interest in thermal concepts and the perceived difficulty affect the stimulation of science state curiosity. To achieve this purpose, 410 elementary school students in 5th to 6th grade were asked to measure interest in the content of the thermal concept tasks, the perceived difficulty and science state curiosity while solving the thermal concept tasks. 2 (low interest vs. high interest)×2 (easy vs. difficult) ANCOVA was conducted with the covariate of the student's level of science curiosity, which is expected to affect the stimulation of science state curiosity. As a result of the analysis, students with high interest in the contents of the task were showed high science state curiosity. Meanwhile, there was no difference in the level of science state curiosity according to the perceived difficulty. In addition, science state curiosity level of the students with low interest in the content of the task were high when they perceived the task as easy, but science state curiosity level of the students with high interest in the content of the task were high when they perceived the task as difficult. This study was meaningful in that it empirically verified that interest in the content of the tasks has an effect on the stimulation of science state curiosity, and that the effect of interest on the stimulation of science state curiosity varies according to the level of the perceived difficulty.

• Korean Journal of Culture and Social Issue
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• v.23 no.4
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• pp.557-585
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• 2017

In this research, it was examined whether predicting the ripple effects of events influences decision-making difficulty. In addition, it was examined whether perceived accountability for decision-making results mediates the relation above. In Study 1, participants were presented with policy decision-making vignettes and were asked to report on the ripple effects of their policy decisions as well as on the difficulty of making the decision. Consistent with the hypothesis, the bigger the expected ripple effects, the greater difficulty participants felt in making policy decisions. In Study 2, ripple effect magnitudes were experimentally manipulated such that participants were led to predict big ripple effects in one condition and relatively small ripple effects in another condition. It was investigated whether participants predicting bigger ripple effects would perceive decision-making to be more difficult than participants predicting smaller ripple effects. Whether this relation would be mediated by perceived personal accountability for the results of decision-making was also examined. Consistent with expectations, it was found that in the moral domains of Harm/care, Fairness/reciprocity, and Ingroup/loyalty, participants predicting bigger ripple effects reported more difficult decision-making than their counterparts. The relation above was mediated by perceived personal accountability for decision-making results only in the domain of Ingroup/loyalty. In combination, these results showed that bigger predicted ripple effects contributed to greater decision-making difficulty. In addition, participants felt more responsible for the results of their decisions when predicting bigger ripple effects, which led them to feel greater decision-making difficulty in the domain of Ingroup/loyalty. The implications of these results and future directions for research are discussed.