• Title/Summary/Keyword: perceived response

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Introducing an Online Measurement System Using Item Response Theory and Computer Adaptive Testing Methods for Measuring the Physical Activity of Community-Dwelling Frail Older Adults

  • Choi, Bong-sam
    • Physical Therapy Korea
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    • v.26 no.3
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    • pp.106-114
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    • 2019
  • Background: It is difficult to assess whether community-dwelling frail older adults may remain pre-frail status or improve into a robust state without being directly checked by health care professionals. The health information perceived by older adults is considered to be one of best sources of potential concerns in older adult population. An online measurement system combined with item response theory (IRT) and computer adaptive testing (CAT) methods is likely to become a realistic approach to remotely monitor physical activity status of frail older adults. Objects: This article suggests an approach to provide a precise and efficient means of measuring physical activity levels of community-dwelling frail older adults. Methods: Article reviews were reviewed and summarized. Results: In comparison to the classical test theory (CTT), the IRT method is empirically aimed to focus on the psychometric properties of individual test items in lieu of the test as a whole. These properties allow creating a large item pool that can capture the broad range of physical activity levels. The CAT method administers test items by an algorithm that select items matched to the physical activity levels of the older adults. Conclusion: An online measurement system combined with these two methods would allow adequate physical activity measurement that may be useful to remotely monitor the activity level of community-dwelling frail older adults.

Analyses of physiological wrist tremor with increased muscle activity during bench press exercise

  • Son, Hyewon;Kim, Jisu;Hong, Gyuseog;Park, Wonil;Yoon, Sungjin;Lim, Kiwon;Park, Jonghoon
    • Korean Journal of Exercise Nutrition
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    • v.23 no.1
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    • pp.1-6
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    • 2019
  • [Purpose] To date, there have been no studies on the response of wrist tremor to increased muscle activity during exercise. This study aimed to evaluate the wrist tremor response with increasing muscle activity during bench press exercise. [Methods] Triceps muscle activity and wrist tremor response were measured by electromyography and an accelerometer, respectively, during bench press exercise in 11 healthy men without weight-training experience. Subjects performed bench press at 30% repetition maximum (RM), and the rating of perceived exertion (RPE) and lactate concentration were measured before and after exercise. One week later, an equivalent number of bench presses at 30% RM was performed without weight load as a control trial (CT). [Results] RPEs and lactate concentrations significantly increased after resistance exercise (30% RM) from 7.4 to 14.3 and 1.7 to 4.9, respectively (P<.01), but no such difference was observed in the CT. Muscle activity linearly increased during the 30% RM exercise, and wrist tremors were shown to linearly decrease. A strong negative correlation was observed between the two variables (r=-0.88, P<.001). [Conclusion] We found that wrist tremors during resistance exercise, as measured using an accelerometer, can be used to predict muscle activity.

Life in Old Age and Images of the Aged Perceived by Middle-Aged and Old-Aged Generations in Capital Region in Korea (수도권 지역 중년기 이후 세대의 노후생활 인식과 노인에 대한 인식)

  • Choi, Sung-Jae
    • 한국노년학
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    • v.29 no.1
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    • pp.329-352
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    • 2009
  • This study examined life in old age and images of the aged perceived by middle-aged and old-aged generations through indepth interviews with 30 persons aged 40s through 80s residing in three areas (city or county) in capital region in Korea to use it as basic information in planning social welfare policy and reorganizing social services in response to population aging in capital region in Korea. In terms of economic life of the middle-aged and olde-aged generations perceived older people's opportunities for work were rarely given to the aged due to ageism and negative stereotypes of aging and the aged, and the aged tended to regard themselves less able or unable to work. In terms of social life of the aged both middle-aged and old-aged generations perceived that the frequency of social participation was low, and the daily life of the aged was found mostly aimless, unorganized and unplanned. In terms of psycho-social life of the aged both generations still felt that they were not alienated from the family, neighbors, and the society. In terms of social welfare services both generations thought the aged needed basic services such as income maintenance, health care, housing services, and particularly they felt lack of social services. The old-aged generation was willing to travel to the distance taking more than one hour to receive social services that they would need. Both the middle-aged and the old-aged agreed upon the necessity of preparation for old age and the benefits of earlier preparation, however, they said that they could not prepare for their old age due to lack of social programs to help preparation for old age and due to spending for rearing and education of their children. In terms of perceived life in old age both middle-aged and old-aged generations tended to be slightly positive, but the degree of positiveness differed between respondents from urban area and those from rural area regardless of generations. Images of the aged were perceived to be overwhelmingly negative while positive images were very few in number regardless of generations. This finding may suggests that negative stereotypes on aging and the aged are also prevalent in Korean society like in Western societies. Based on findings of this study some implications for social policies in response to population aging in capital region were suggested.

Consumer Responses toward Fashion Collaboration Brands -Effects of Collaboration Type and Brand Sensitivity- (패션 콜레보레이션 브랜드에 대한 소비자 반응 -콜레보레이션 유형과 브랜드 민감성 효과-)

  • Kim, Eun Young;Ko, Soon Hwa
    • Journal of the Korean Society of Clothing and Textiles
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    • v.36 no.10
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    • pp.1058-1073
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    • 2012
  • This study examines the effects of collaboration type and brand sensitivity on consumer responses toward fashion collaboration brands. For this study, six brands of fashion collaboration were selected by collaboration types: collaboration with same industry (Uniqlo-Jill Sander, H&M-Sonia Rykiel, and Levis-Jean Paul Gaultier) and collaboration with different industries (LG-Prada, Samsung-Armani, and LG-Levis). A selfadministered questionnaire was developed based on the literature that mainly included brand sensitivity, consumer response (brand association, brand values, and purchase intention), and marketing strategic elements in the context of fashion collaboration. For collecting the data, respondents were asked to choose and assess a previously purchased brand. A total of 299 usable data responses were obtained from Korean consumers aged from 15 to 40 years old. The consumer response toward the fashion collaboration brand consisted of four factors: Emotional value, perceived quality, symbolic value, and brand association. The results showed that the collaboration type had the main effect on emotional value, symbolic value, and purchase intention. Brand sensitivity had the main effect on brand association, emotional value, symbolic value, and purchase intention. There was also an interaction effect on emotional value. With respect to strategic marketing elements, product differentiation, premium pricing, and value pricing had partially positive effect on consumer responses; however, promotion had a negative effect on consumer responses (e.g., perceived quality, and emotional value). In addition, collaboration type or brand sensitivity moderated the effect of strategic marketing elements on consumer responses. This study discussed a managerial implication to develop a strategic brand alliance to manage brand equity in the fashion marketplace.

Effects of Background Depth Information on the Judgment of Two-dimensional Shapes (배경 깊이정보가 이차원 자극의 형태 판단에 미치는 영향)

  • Kim, Young-Geun;Shin, Hyun-Jung
    • Korean Journal of Cognitive Science
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    • v.17 no.4
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    • pp.287-301
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    • 2006
  • Two experiments were performed to investigate effects of background depth information on the judgment of two-dimensional shapes, using the Posner et al.'s(1969) physical match task. In both experiments, the focus was on whether the background depth information affects the decisions of physical shape sameness of two letters or figures presented successively. In Experiment 1, artificially constructed rues of linear perspective and texture gradient were used, whereas cues contained in a real road situation were used in Experiment 2. The results of both experiments showed that the depth cues affect the perception of two-dimensional shapes. That is, when two stimuli of the same physical shape were likely to be perceived differently due to the given depth cues, response accuracies('yet' in this case) decreased and reaction tines of physical match increased. And when two stimuli of the different physical shape were likely to be perceived the same due to the given depth cues, response accuracies('no' in this case) decreased and reaction times of physical match increased likewise. These results wert discussed in terms of some conceptual methodological problems of the previous studies on the shape constancy and the directions of future research.

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A Study of the Systems Quality Effect on the Intention to Use of Cloud Computing Services in Information Center (정보센터 시스템 품질이 클라우드 서비스 이용의도에 미치는 영향 연구)

  • Yoon, Jung-Hyeon
    • Journal of the Korean Society for information Management
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    • v.28 no.4
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    • pp.49-63
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    • 2011
  • The purpose of this study is to identify the new roles and services of information center that is affected by changing information technology so called cloud computing service. Using Information Technology acceptance model, hypotheses were developed to find relationships among intention to use of a cloud service, perceived usefulness, perceived easy of use and three system quality evaluation factors such as data safety, network response time, and system accessibility. The hypotheses have been tested with 114 user surveys. This study presents the relationship between certain attitude and intention to use variables and system accessibility applying clouding service. The result of this research gives an insight of the evaluation and a guideline for the implementation of cloud computing services in information centers.

Effects of an Educational Intervention Based on the Protection Motivation Theory and Implementation Intentions on First and Second Pap Test Practice in Iran

  • Dehdari, Tahereh;Hassani, Laleh;Hajizadeh, Ebrahim;Shojaeizadeh, Davoud;Nedjat, Saharnaz;Abedini, Mehrandokht
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.17
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    • pp.7257-7261
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    • 2014
  • Background: Few Iranian women take the Papanicolaou test despite its important role in preventing cervical cancer. This study aimed to determine the effectiveness of an educational intervention based on the protection motivation theory (PMT) variables and implementation intentions in the first and second Pap test practice among Iranian women. Materials and Methods: In this quasi-randomized controlled trial, 200 women who were referred to 30 primary health care clinics in Tehran were randomly selected. PMT variables and Pap test practice were measured at baseline and again after 3 and 15 months. The 4-week educational intervention program was conducted for the intervention group. Results: Following the intervention, the mean scores of self-efficacy, perceived vulnerability, and behavior intention variables were significantly higher in the intervention group when compared to the control group (p<0.05). No significant differences were found in the perceived severity, response efficacy, response cost, and fear between the two groups following the intervention. Higher percent of women in the intervention group had obtained first and second Pap test compared to the controls. Conclusions: The PMT and implementation intentions provide a suitable theory-based framework for developing educational interventions regarding Pap test practice in Iran.

Analyzing Impact Factors of User Resistance to Accepting Paid Mobile Application (유료 모바일 애플리케이션 수용 저항 요인에 관한 분석)

  • Song, Seong-Beom;Kang, Ju-Young;Lee, Sang-Gun
    • The Journal of the Korea Contents Association
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    • v.13 no.4
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    • pp.361-375
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    • 2013
  • While the mobile application market is growing fast, the revenues of the majority apps are declining. Moreover, paid mobile application prices and purchases have been slow because of intensifying competition. However, the conventional studies focused only on the acceptance factor of mobile applications, so they cannot explain the phenomenon such as acceptance resistance for paid mobile applications. Therefore, our study tries to analyze the factors for the acceptance resistance of users for paid mobile applications. The research model in this paper, which is based on S-O-R model, verified through surveys how social influence and app characteristics affect user perception and how user perception affects to app resistance. The results of our study showed that paid mobile applications happened to be destroyed in front of the chasm because of the perceived loss. Consequently, the results implicate that the developers should lower the initial price and actively react to the negative reviews in order to lower the perceived loss. Moreover, the results verified that a sense of self-efficacy can lower application acceptance resistance by including personal properties to our research model as control variables.

A Study on the Customer Relationship Activation based on Service Quality of Internet Shopping Mall (디지털 경영에서 고객관계 활성화를 위한 인터넷 쇼핑몰의 서비스 품질에 관한 연구)

  • Kim, Chang-Su;Kim, Hei-Jeng;Koh, Yong-Ki
    • International Commerce and Information Review
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    • v.6 no.1
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    • pp.25-50
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    • 2004
  • This study attempts to find out what kind of service quality is considered important by customers in using the Internet shopping mall and suggests the way to activate the customer relationship. The findings based on empirical analysis are shown here. First, empirical analysis of the contextual factors such as gender, education, and experience levels, shows that what customers perceive as most important in the product purchase is security in terms of the payment and personal information service. The second important service quality factor perceived by customers is responsiveness, particularly the rapidity and accuracy of response to their needs and wants. The customers also considered price, quality and diversity of the product as being important. Furthermore, there is no big difference among other service quality factors. Second, in the different gender context, there is no significant difference between the genders. However, the male group shows an even distribution of factors valued in the service quality, whereas female respondents placed stronger emphases on particular aspects of service, such as security, response, reliability and product quality. Third, in the context of different education level, the payment method between graduates and non-graduates has a significant difference. That is, the non-graduates prefer the credit card and saving through ATM, while the graduates use dual payment method using credit card and another payment method together. Therefore, the various payment methods should be considered according to the customer type, namely graduates or non-graduates. Fourth, in the context of different experience level, the result of the empirical analysis of the factors of the service quality shows no great difference between experienced and inexperienced customers. Both types of customer perceive security as the most important. To sum up, the service quality perceived by the customers of Internet shopping malls is empirically analyzed in different contexts such as gender, education, and experience. Then, the device for the customer relationship activation is suggested. It can be utilized as a guideline for the continuing diffusion of the Internet shopping mall, giving it a competitive advantage against other companies.

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Protection Motivation Theory and Rabies Protective Behaviors Among School Students in Chonburi Province, Thailand

  • Laorujisawat, Mayurin;Wattanaburanon, Aimutcha;Abdullakasim, Pajaree;Maharachpong, Nipa
    • Journal of Preventive Medicine and Public Health
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    • v.54 no.6
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    • pp.431-440
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    • 2021
  • Objectives: The aim of this study was to predict rabies protective behaviors (RPB) based on protection motivation theory (PMT) among fourth-grade students at schools in Chonburi Province, Thailand. Methods: This cross-sectional study was conducted from December 2020 to February 2021. A multistage sampling technique was used for sample selection. The questionnaire was divided into socio-demographic data and questions related to PMT and RPB. Descriptive statistical analysis was conducted using the EpiData program and inferential statistics, and the results were tested using the partial least squares model with a significance level of less than 5%. Results: In total, 287 subjects were included, of whom 62.4% were girls and 40.4% reported that YouTube was their favorite media platform. Most participants had good perceived vulnerability, response efficacy, and self efficacy levels related to rabies (43.9, 68.6, and 73.2%, respectively). However, 54.5% had only fair perceived severity levels related to rabies. Significant positive correlations were found between RPB and the PMT constructs related to rabies (β, 0.298; p<0.001), and the school variable (S4) was also a predictor of RPB (β, -0.228; p<0.001). Among the PMT constructs, self efficacy was the strongest predictor of RPB (β, 0.741; p<0.001). Conclusions: PMT is a useful framework for predicting RPB. Future RPB or prevention/protection intervention studies based on PMT should focus on improving self efficacy and response efficacy, with a particular focus on teaching students not to intervene with fighting animals. The most influential PMT constructs can be used for designing tools and implementing and evaluating future educational interventions to prevent rabies in children.