• Title/Summary/Keyword: Exogenous Variables

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A Structural Model on the Post-Traumatic Growth of Police Officers (경찰공무원의 외상 후 성장 구조모형)

  • Han, Seung Woo;Choi, Eun Suk
    • Research in Community and Public Health Nursing
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    • v.31 no.3
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    • pp.348-359
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    • 2020
  • Purpose: The purpose of this study is to construct and test a structural model for the Post-traumatic Growth (PTG) of police officers. The conceptual model is based on Calhoun and Tedeschi's PTG theory. Methods: Data were collected from 269 police officers working at 10 police stations in Seoul from September 26 to October 9, 2017. The exogenous variable was traumatic experiences, and endogenous variables were pain perception, self disclosure, social support, deliberate rumination, and PTG. The collected data were analyzed in order to calculate the direct and indirect effects of factors affecting PTG using SPSS/WIN 23.0 and AMOS 21.0. Results: The hypothetical model showed a good fit to the data: 𝑥2/df=2.57, GFI=.90, CFI=.95, TLI=.91, RMSEA=.07, SRMR=.07. The hypothetical model showed a similar result with the data, and out of 10 paths, 7 were statistically significant. The model explained 36% of the variance in the PTG of police officers. The model confirmed that social support and deliberate rumination had a direct effect, and that self-disclosure had an indirect effect on police officers' PTG. Conclusion: Nursing intervention programs to increase PTG of police officers should focus on deliberate rumination, social support, and self-disclosure. In addition, they should be accompanied by various crisis managements and consultations that can promote PTG.

Correlates of Price Acceptability of Apparel Products (의류상품 소비에 있어서 가격수용성의 상호관련변수)

  • Lee, Kyu-Hye
    • Journal of the Korea Fashion and Costume Design Association
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    • v.10 no.3
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    • pp.127-136
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    • 2008
  • The main focus of the study resides in antecedents of price acceptability. Levels of acceptable price may be related to the consumers' perception on reasonable or expected price. Price acceptability is known to have several psychological antecedents. One of the antecedents to price acceptability reported by prior researches is price-quality inference, a tendency to correlate high price to excellence in quality. In addition, price-conscious consumers are likely to show lower level of price acceptability level. Another well-known antecedent is sale proneness. Sales-prone consumers may relate price of apparel products to product quality information. Moreover, it was reported that involved consumers should be more concerned with the products to its price and thus should have higher levels of price acceptability. A conceptual model with price consciousness, sale proneness and product involvement as the exogenous variable, price-quality inference and price acceptability as the endogenous variable was developed for the empirical study. Measures of research variables were developed based on previous studies. Questionuaires from 298 respondents were analyzed for the study. The average age of respondents was 27. About 60% of the respondents were married and about 65% of them had college degrees. Empirical results supported all of the hypothesized relationships. Price consciousness had significant negative influence on price-quality inference and price acceptability. Sale proneness significantly influenced price-quality inference, while apparel involvement had significant impact on price-quality inference and price acceptability. Price-quality affected price acceptability significantly. This study generated a framework to help scholars understand antecedents of price acceptability of apparel products. Price has been shown to playa dual role in consumer's perceptions, either positively or negatively. Price consciousness played a negative role, and product involvement had a positive role in evoking higher level of price acceptability. This study also suggests additional source of positive, yet indirect role of price, sale proneness. This study also affirmed the importance of price-quality inference in arousing higher level of price acceptability.

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Effects of Social Support, Ego-resilience, and Subjective Wellbeing on Suicidal Ideation in Nursing Students (간호대학생의 사회적 지지, 자아탄력성, 주관적 안녕감이 자살생각에 미치는 영향)

  • Park, Soonjoo;Bak, Eunyeong;Lee, Songiee;Jang, Ahhyun;Cho, Seowon
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.23 no.3
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    • pp.310-319
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    • 2016
  • Purpose: This study was done to examine whether risk of suicidal ideation in nursing students as related to social support and ego-resilience, and whether subjective wellbeing mediated the relationships. Methods: Structural equation modeling was applied to test the model in which ego-resilience and social support from family, friends, and others were considered as exogenous variables and subjective wellbeing as a mediating variable. The participants were 285 nursing students who completed self-report measures including the Suicidal Ideation Questionnaire, the Multidimensional Scale of Perceived Social Support, the Ego-Resiliency Scale, and the Index of Wellbeing. Results: Results show that higher scores on family support and ego-resilience were positively associated with subjective wellbeing and negatively with suicidal ideation. Subjective wellbeing mediated the relationships between family support and suicidal ideation, and also ego-resilience and suicidal ideation. Among the three social supports, only family social support had both direct and indirect effects on suicidal ideation. Conclusion: Findings suggest that family support is a useful resource in the prevention of suicidal ideation in nursing students and building supportive relationship with family should be considered as the first step in suicide prevention strategies. Also enhancing ego-resilience could play an important role to reduce suicide risk through promoting well-being.

A Study for an Efficient Utilization of the Linear Model (선형모형의 효율적 활용성에 관한 연구)

  • Kim Tae-Ho;Cho Eun Jung;Kim Mi Yun
    • The Korean Journal of Applied Statistics
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    • v.18 no.1
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    • pp.147-158
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    • 2005
  • Most of the statistical models that real data can be applicable are static in nature, and thus it is not possible to analyze the effect of variations in the real world over time. Usual specification of the models does not produce the length and the time path of the effect even if the effect of an exogenous variation continues for periods of time. In this study, deriving the dynamic inherence from the static structure of the linear model for better utilization, we attempt to apply actual data to compare and analyze the long-run effect of variations in the market variables between the related markets by formulating a simultaneous equation system. Accordingly, it is proved to be possible to obtain efficient analytical results and to derive various useful implications.

A Study on Two-Dimensional Analysis with the Acceptance of High-Tech New Product - Focusing on Smart-Phone's Usefulness Expectancy referring to Product and Application - (하이테크 신제품 수용의 2차원 연구 - 스마트폰의 제품과 애플리케이션 유용성 기대를 중심으로-)

  • Lim, Yang Whan
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.7 no.3
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    • pp.151-162
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    • 2011
  • This study defined acceptance of high-tech new product as user's active using the product such as utilizing application software rather than purchasing it. As exploring factors to effect on customer's acceptance, usefulness expectancy was examined from product side and application side. When investigating the exogenous variables to influence on usefulness expectancy from the product side, customer's product knowledge and social influences are put forward to support the hypothesis. From the application side, customer's knowledge about the application and its trust are put to explain usefulness expectancy of the application. Smart phone users were good subjects for this study and most hypotheses were tested using structural equation model and the results are followings. First usefulness expectancy of the product and of application significantly effect on customer's intention to use high-tech new product and also usefulness expectancy of the product positively effects on which of the application. Second customer's perceived knowledge about the product and social influences impact usefulness expectancy of the product. But third customer's perceived trust toward application didn't any positive impact usefulness expectancy of the application. Through the result, there will be several implications. First, from both of side; product and application, customer's usefulness expectancy should be satisfied to be successful in high-tech products market. Second, customer should be Ieant about advantages of the product and knowledge about the application as well, and then trigger their usefulness expectancy.

A Comparison of the Different Question Formats in the Contingent Valuation Method for the Evaluation of Recreational Benefit (휴양자원가치(休養資源價値) 평가(評價)를 위한 CVM 질문형(質問型) 비교(比較))

  • Kim, Joon-Soon
    • Journal of Korean Society of Forest Science
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    • v.88 no.3
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    • pp.400-407
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    • 1999
  • The purpose of thin paper is to test difference of the two question formats, open-ended and dichotomous choice formats, in the contingent valuation method using the estimated recreational benefits. The data were collected from the visitors at the Songnisan National Park. The recreational benefit based on the equivalent variation. The two question formats, but the same content, were asked of the same individuals. In this analysis, it was used travel cost and monthly income as the exogenous variables, which assumed a linear functional form for the WTP equation. The model assumed a bivariate normal distribution on the basis of the probit and tobit model concerning the censored zero WTP. The result showed no differences in the recreational benefits from the different question formats under a same respondent. The mean benefit was estimated 25.556 Won per 5 years per visitors.

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Path Model for the Family and School Environment Affecting Adolescent Suicidal Ideation Mediated by Depression (우울증을 매개로 한 청소년의 자살구상에 관한 가족 및 학교환경의 경로분석 모델)

  • 전영주
    • Journal of the Korean Home Economics Association
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    • v.39 no.1
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    • pp.151-167
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    • 2001
  • This study tests the path model which examines how the variables of past and present family dynamics, school adjustment, filed life events affect the adolescents'depression which in tum influencing their suicidal ideation. In the path model, the exogenous varialbes were negative parenting experience in childhood, maladjustment history of the family (e.g., alcohol, divorce), present parent-adolesecent communication, school adjustment, filed life events were used, whereas the adolescent depression was used as the mediated variable. The endogenous variable was the adolescent suicidal ideation. The respondents of the survey were 635 adolescent who were 1st and 2nd grade of high school located in Seoul and Busan. Using SPSS for Windows, the path analysis was done for male and female adolescents separately, since female adolescents were found to report significantly higher degree of depression and suicidal ideation then were male adolescents. The results of the path analysis were as followings. First, for both the male and female adolescents, depression was the strongest predictor of their suicidal ideation. Also, school adjustment strongly affected the adolescents'depression as well as their suicidal ideation. Meanwhile, filed life events indirectly influenced the suicidal ideation only through the depression. Second, for the male adolescents, negative parenting experience in childhood affected both the depression and suicidal ideation, while the parent-adolescent communication directly affected the suicidal ideation. Third, for the female adolescents, maladjustment family history and negative parenting experience did not affect their depression, but the suicidal ideation. Meanwhile, parent-adolescent communication was a significant predictor of female adolescents'suicidal ideation as well as their depression. In conclusion, discussion on different path of male and female adolescents'suicidal ideation was provided.

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Development of a Shockwave Detection Method based on Continuous Wavelet Transform using Vehicle Trajectory Data (차량 궤적 데이터를 활용한 연속웨이블릿변환 기반 충격파 검지 방법 개발)

  • Yang, Inchul;Jeon, Woo Hoon;Lee, Jo Young
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.18 no.5
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    • pp.183-193
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    • 2019
  • This study developed a shockwave detection and prediction of their extinction point method based on continuous wavelet transform using trajectory data from probe vehicles equipped with automotive sensors.. To analyze the effectiveness of the proposed method, this paper proposed two measures which are a distance error between the extinction points of the predictor and an time-location error of the extinction points. The proposed concept was proved using the micro simulation based experiment with three exogenous variables of traffic volume, lane-close duration, market penetration of probe vehicles. The analysis results show that the proposed method is capable of detecting the traffic shockwaves as well as predicting their extinction point, and also that the accuracy of the proposed method is highly dependent on the rate of the probe vehicles.

A Study on the Influencing Factors on Flow & Addiction of Tiktok Service Users (Tiktok 서비스 이용자의 몰입과 중독에 미치는 영향요인 연구)

  • Zhou, Yi-Mou;Lee, Sang-Ho
    • Journal of the Korea Convergence Society
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    • v.12 no.3
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    • pp.125-132
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    • 2021
  • This study deals with the influencing factors on flow and addiction perceived by users of Tiktok service, an SFV service platform that is expanding the market in the middle area between social media and OTT. As the number of Tiktok users increases, researchers thought that research on the cause of addiction would be necessary. Since media users lack media consumption time, they produce and share SFVs rather than long videos, and are affected by exogenous variables. In addition, attachment is divided into interpersonal relationships and attachment to services, and the path of attachment was confirmed to be connected to flow and addiction. Through this study, the researchers considered that there were theoretical and practical contributions in that the path leading to addiction of video media services was set and verified as self-exposure and attachment, flow and addiction. These research results can be applied to more diversified video-centered media services, and can be expected to be used for new media emerging in the future.

Analyze Causal Relations between the 2019 International Horticulture Goyang Korea's Service Quality and Visitors' Perceived Value, Overall Satisfaction, and Loyalty (축제형 박람회의 서비스품질이 지각된 가치, 전반적 만족 및 충성도에 미치는 영향 - 2019고양국제꽃박람회를 중심으로 -)

  • Lee, Chan-Do
    • The Journal of the Korea Contents Association
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    • v.21 no.2
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    • pp.68-77
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    • 2021
  • The purpose of this study is to The exhibition's service quality was divided into three factors: event content, publicity, and empathy. First, the exhibition's service quality had positive effects on visitors' perceived value and overall satisfaction. Visitors' perceived value also showed a positive effect on their overall satisfaction. Second, each of visitors' perceived value and overall satisfaction had positive effects on their loyalty. Third, in effect decomposition, the total effect of the exhibition's service quality on visitors' perceived value was largest, followed by the service quality's total effect on their overall satisfaction and the service quality's total effect on their loyalty in order. In addition, statistically significant total effects were found between visitors' perceived value and overall satisfaction, as well as between visitors' perceived value and loyalty. As a result, mediating effects such as visitors' overall satisfaction had a positive contribution. Accordingly, statistically significant effects were confirmed in the relationships between all endogenous and exogenous variables.