• Title/Summary/Keyword: Model fit

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A Structural Model Analysis of Person-Organization Fit Influencing Job Satisfaction and Turnover Intent Mediated through Goal Commitment - Centered on Five Star Deluxe Hotel Employees - (개인 조직 적합성이 목표 몰입을 매개로 직무만족 및 이직의도에 미치는 영향에 관한 연구 - 특 1급 호텔 근무자를 중심으로 -)

  • Kim, Ji-Eun
    • Culinary science and hospitality research
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    • v.18 no.5
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    • pp.146-164
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    • 2012
  • This study aims to investigate the influence of person-organization(P-O) fit on job satisfaction, and turnover intent mediated through goal commitment using structural equation modeling. An experimental design is applied to test seven hypotheses that reflect the research questions. Five star deluxe hotel employees are targeted for sampling. A total of 180 faithful cases out of 250 cases have been analyzed. To analyze the data, descriptive statistics and multivariate analysis of variance, and structural equation modeling(SEM) are employed using SPSS 19.0 and AMOS 4. The results indicate the hotel employees' perceived P-O fit is positively associated with goal commitment and job satisfaction while negatively linked with turnover intent. Also, goal commitment has a positive effect on job satisfaction while having a negative effect on turnover intent, mediating between P-O fit and organizational outcomes. Therefore, the needs to evaluate P-O fit and goal commitment during recruitment and after organizational entry have been raised.

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A Study Factors Affecting Continuance Intention of Internet Only Bank: Using Task-Technology Fit Theory (인터넷전문은행의 지속 사용 의도에 영향을 미치는 요인에 대한 연구: 업무-기술 적합성 이론을 활용하여)

  • Yoo, Hyein;An, Jaeyoung;Lee, Choong C.
    • The Journal of Society for e-Business Studies
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    • v.23 no.3
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    • pp.111-128
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    • 2018
  • Today the paradigm of the financial services industry is shifting to mobile banking, and each financial company provides a variety of mobile banking services. Because of the innovation of mobile banking service, the Internet Only Bank has been launched recently. However, the actual number of users is far less than the number of subscribers. The purpose of this study is to investigate the factors affecting the intention to use of Internet only banking service by applying Task-Technology Fit (TTF) theory. In order to carry out this research, we conducted a survey on the user of the Internet only banking services, tested the measurement validity/reliability analysis and derived structural equation model. The results indicate that there are significant correlations between technology characteristics and task-technology fit and between task-technology fit and continuance intention. The results of this study are expected to provide implications for securing and maintaining the users of Internet banking providers.

Investigation of the marginal fit of a 3D-printed three-unit resin prosthesis with different build orientations and layer thicknesses

  • Yang, Min-Seong;Kim, Seong-Kyun;Heo, Seong-Joo;Koak, Jai-Young;Park, Ji-Man
    • The Journal of Advanced Prosthodontics
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    • v.14 no.4
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    • pp.250-261
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    • 2022
  • PURPOSE. The purpose of this study was to analyze the marginal fit of three-unit resin prostheses printed with the stereolithography (SLA) method in two build orientations (45°, 60°) and two layer thicknesses (50 ㎛, 100 ㎛). MATERIALS AND METHODS. A master model for a three-unit resin prosthesis was designed with two implant abutments. Forty specimens were printed using an SLA 3D printer. The specimens were printed with two build orientations (45°, 60°), and each orientation was printed with two layer thicknesses (50 ㎛, 100 ㎛). The marginal fit was measured as the marginal gap (MG) and absolute marginal discrepancy (AMD), and MG and AMD measurements were performed at 8 points per abutment, for 16 points per specimen. All statistical analyses were performed using SPSS software. Two-way analysis of variance (ANOVA) was separately performed on the MG and AMD values of the build orientations and layer thicknesses. Moreover, one-way ANOVA was performed for each point within each group. RESULTS. The margins of the area adjacent to the pontic showed significantly high values, and the values were smaller when the build orientation was 45° than when it was 60°. However, the margin did not differ significantly according to the layer thicknesses. CONCLUSION. The marginal fit of the three-unit resin prosthesis fabricated by the SLA 3D method was affected by the pontic. Moreover, the marginal fit was affected by the build orientation. The 45° build orientation is recommended.

Turkish Version of the Perceived Future Decent Work Securement Scale: Validity and Reliability for Nursing Students

  • Oznur Ispir Demir;Betul Sonmez;Duygu Gul;Sergul Duygulu
    • Safety and Health at Work
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    • v.14 no.3
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    • pp.332-339
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    • 2023
  • Background: The aim of the study was to test the validity and reliability of the Perceived Future Decent Work Securement Scale for Turkish nursing students. Methods: A cross-sectional, methodological study design was used. The study was carried out at three nursing undergraduate programs in Turkey during the academic year of 2020-2021 with 336 senior nursing students. Language validity and content validity analyses were performed for the scale adaptation, followed by confirmatory factor analysis (CFA) for construct validity. The reliability of the scale was determined using the test-retest and Cronbach's alpha internal consistency coefficient. Results: The scale-content validity index score was 0.988. In CFA, all goodness-of-fit indices verified the acceptable fit of the model; its root mean square error of approximation was 0.076; the normed fit index was 0.909; the standardized mean square residual was 0.097; the relative fit index was 0.881; the goodness-of-fit index was 0.915; the adjusted goodness-of-fit index was 0.872 and χ2/df = 2.932. The overall reliability was α = 0.86. The item-total correlations of the scale were above the acceptable level, and the test-retest analysis had a high correlation. The access to healthcare (14.68, SD 3.53) obtained the highest average score, and the adequate compensation (8.52, SD 3.76) was the lowest rated by the senior nursing students. Conclusion: The Perceived Future Decent Work Securement Scale is a valid and reliable scale to assess nursing students' future decent work securement.

On Information Criteria in Linear Regression Model

  • Park, Man-Sik
    • The Korean Journal of Applied Statistics
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    • v.22 no.1
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    • pp.197-204
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    • 2009
  • In the model selection problem, the main objective is to choose the true model from a manageable set of candidate models. An information criterion gauges the validity of a statistical model and judges the balance between goodness-of-fit and parsimony; "how well observed values ran approximate to the true values" and "how much information can be explained by the lower dimensional model" In this study, we introduce some information criteria modified from the Akaike Information Criterion (AIC) and the Bayesian Information Criterion(BIC). The information criteria considered in this study are compared via simulation studies and real application.

Application of GLIM to the Binary Categorical Data

  • Sok, Yong-U
    • Journal of the military operations research society of Korea
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    • v.25 no.2
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    • pp.158-169
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    • 1999
  • This paper is concerned with the application of generalized linear interactive modelling(GLIM) to the binary categorical data. To analyze the categorical data given by a contingency table, finding a good-fitting loglinear model is commonly adopted. In the case of a contingency table with a response variable, we can fit a logit model to find a good-fitting loglinear model. For a given $2^4$ contingency table with a binary response variable, we show the process of fitting a loglinear model by fitting a logit model using GLIM and SAS and then we estimate parameters to interpret the nature of associations implied by the model.

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A Study on Drying Models of Ginseng (인삼의 건조모델에 관한 연구)

  • 최병민
    • Food Science and Preservation
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    • v.3 no.1
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    • pp.39-53
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    • 1996
  • Ginseng, one of the important economic crops, is processed into medicine, teas, beverages and even foods. Drying is the most important and burdensome work in the processing of ginseng, so development of ginseng dryer is needed for efficient drying and good quality of ginseng. Investigation of drying model is essential for development of ginseng dryer. Drying models for peeled ginseng were investigated to determine dominant drying factors and fitted with five selected drying models and an empirical model. Thompson and the empirical model showed best fit with the experimental data. Pother experiment is necessary to prove the superiority of the empirical models.

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Comparison of the fit of cast gold crowns fabricated from the digital and the conventional impression techniques

  • Yun, Mi-Jung;Jeon, Young-Chan;Jeong, Chang-Mo;Huh, Jung-Bo
    • The Journal of Advanced Prosthodontics
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    • v.9 no.1
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    • pp.1-13
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    • 2017
  • PURPOSE. The purpose of this study was to compare the fit of cast gold crowns fabricated from the conventional and the digital impression technique. MATERIALS AND METHODS. Artificial tooth in a master model and abutment teeth in ten patients were restored with cast gold crowns fabricated from the digital and the conventional impression technique. The forty silicone replicas were cut in three sections; each section was evaluated in nine points. The measurement was carried out by using a measuring microscope and I-Soultion. Data from the silicone replica were analyzed and all tests were performed with ${\alpha}$-level of 0.05. RESULTS. 1. The average gaps of cast gold crowns fabricated from the digital impression technique were larger than those of the conventional impression technique significantly. 2. In marginal and internal axial gap of cast gold crowns, no statistical differences were found between the two impression techniques. 3. The internal occlusal gaps of cast gold crowns fabricated from the digital impression technique were larger than those of the conventional impression technique significantly. CONCLUSION. Both prostheses presented clinically acceptable results with comparing the fit. The prostheses fabricated from the digital impression technique showed more gaps, in respect of occlusal surface.

Power Investigation of the Entropy-Based Test of Fit for Inverse Gaussian Distribution by the Information Discrimination Index

  • Choi, Byungjin
    • Communications for Statistical Applications and Methods
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    • v.19 no.6
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    • pp.837-847
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    • 2012
  • Inverse Gaussian distribution is widely used in applications to analyze and model right-skewed data. To assess the appropriateness of the distribution prior to data analysis, Mudholkar and Tian (2002) proposed an entropy-based test of fit. The test is based on the entropy power fraction(EPF) index suggested by Gokhale (1983). The simulation results report that the power of the entropy-based test is superior compared to other goodness-of-fit tests; however, this observation is based on the small-scale simulation results on the standard exponential, Weibull W(1; 2) and lognormal LN(0:5; 1) distributions. A large-scale simulation should be performed against various alternative distributions to evaluate the power of the entropy-based test; however, the use of a theoretical method is more effective to investigate the powers. In this paper, utilizing the information discrimination(ID) index defined by Ehsan et al. (1995) as a mathematical tool, we scrutinize the power of the entropy-based test. The selected alternative distributions are the gamma, Weibull and lognormal distributions, which are widely used in data analysis as an alternative to inverse Gaussian distribution. The study results are provided and an illustrative example is analyzed.

A Study of the Patternmaking Methods for Mass Customization of the Men's Jacket (남성복 재킷의 Mass Customization을 위한 패턴 제작 방법 연구)

  • Oh, Seol-Young;Chun, Jong-Suk;Suh, Dong-Ae
    • The Research Journal of the Costume Culture
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    • v.14 no.1
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    • pp.40-47
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    • 2006
  • Three-dimensional body scanners were used for years in the clothing manufacturing fields. The 3D body surface provide essential data to draft patterns for mass customization, virtual fit model, and computerized patternmaking systems. This research proposed the methods of drafting patterns for men's jacket by using three dimensional body scan data. Eight male subjects were scanned, the surface data was flattened. The differentials of the flattened body surface and the jacket draft were measured, and analyzed the regressions. To verify the fit of the patterns, the jacket was constructed by the regression formulae and tested by experts. The fit of the jacket were significantly improved rather than a ready-made suit especially the shoulder areas. This means that the methods that we proposed were good to improve the fit of the garments and could be used effectively to implement mass customization strategies in the apparel retail industry.

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