• Title/Summary/Keyword: Testing Hypotheses

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A Study on the Effects Comes up to Outcome Behavior of the Perceived Justice on Human Resources Management System (인적자원관리시스템에 대한 공정성인식이 결과행위에 미치는 영향)

  • Youn, Dae-Hyok
    • Journal of the Korean Operations Research and Management Science Society
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    • v.27 no.4
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    • pp.127-137
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    • 2002
  • This study aims at developing and empirically testing a comprehensive model of organizational justice derived from the prior empirical studies on organizational justice. The study seeks to understand the antecedents to and the consequences are addressed. The first question is what characteristics of the HRM systems determine the levels of perceived distributive and procedural justice. Hypotheses are derived from the two prominent theoretical models, i.e., the self-interests model (SIM) and the group value model (GVM). Those factors include neutrality, consistency, accuracy. ethicality. credibility. and reciprocity in the processes of making HRM decisions. All nine factors suggested by the two models aye adopted for this study as major determinants of both distributive and procedural justice. The second question of this study is related to the moderating effects of individual differences on the relationship between the SIM and GVM variables and perceived distributive and procedural justice in organizational contexts. The final research question deals with the consequences of perceived organizational justice. specifically job - related altitudes and organizational commitment. Job-related attitudes in this study refer to job satisfaction, job motivation, and job involvement, i.e., the willingness to make contributions. identification with organization, and intent to stay. In examining the consequences of perceived organizational justice, the study focuses on the interaction effects of procedural and distributive justice on the above nine outcome variables. The results show that both SIM and GVM variables significantly influence distributive and procedural justice. However, hierarchical regression analyses reveal that the GVM variables except more influence has been focused on the consequences of perceived distributive justice with regard to outcomes provided by the organization.

Study on the Development of a Model for Teaching and Learning Mathematics Using Graphic Calculators (그래픽 계산기를 활용하는 수학과 교수-학습 자료 모형 개발 연구)

  • 강옥기
    • Journal of Educational Research in Mathematics
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    • v.8 no.2
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    • pp.453-474
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    • 1998
  • This study is focused on the possibility if we can use graphic calculators in teaching and learning school mathematics. This study is consisted with four main chapters. In chapter II, the functions of the graphic calculator EL-9600 produced by Sharp Corporation was analyzed focused on the possibilities if the functions could be used in teaching and learning school mathematics. Calculating of real numbers and complex numbers, solving equations and system of linear equations, calculating of matrices, graphing of several functions including polynomial functions, trigonometric functions, exponential and logarithmic functions, calculation of differential and integrals, arranging of statical data, graphing of statistical data, testing of statistical hypotheses, and other more useful functions were founded. In Chapter III, a mathematics textbook developed by Core-Plus Mathematics Project was analyzed focused on how a graphic calculator was used in teaching and learning mathematics, In the textbook, graphic calculator was used as a tool in understanding mathematical concepts and solving problems. Graphic calculator is not just a tool to do complex computations but a tool used in the processes of doing mathematics, In chapter IV, the 7th mathematics curriculum for korean secondary schools was analyzed to find the contents could be taught by using graphic calculators. Most of the domains, except geometric figure, were found that they could be taught by using graphic calculators, In chapter V, a model of a unit using graphic calculator in teaching 7th mathematics curriculum was developed. In this model, graphic calculator was used as a tool in the processes of understanding mathematical concepts and solving problems. This study suggests the possibilities that we can use graphic calculators effectively in teaching and learning mathematical concepts and problem solving for most domains of secondary school mathematics.

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The Relationship between the Adolescent's Perception of Marital Conflict and the Adolescent's Offensive Character (청소년 자녀가 지각한 부부갈등과 청소년의 공격성과의 관계)

  • 이혜수;정옥분
    • Journal of Korean Home Economics Education Association
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    • v.16 no.1
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    • pp.47-62
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    • 2004
  • The purpose of this study was to investigate the relationship beteween the adolescents' perception of marital conflict and the adolescents' offensive character. The subjects of this study were 340 adolescents from 5 middle schools located in Seoul. The Adolescents' perception of marital conflict was assessed by The Adolescents' Perception of Interparental Conflict Scale developed by Grych and his colleagues(1992). The Adolescents' offensive character was assessed by Buss-Durkee Hostility Inventory by Buss and Durkee(1957). For data analyses. t-tests. one-way ANOVAS. Scheffe Tests for pairwise comparison. pearson's correlations were used. In testing all hypotheses. .05 was used as a significant level in this study. Results showed that the adolescents' perception of marital conflict was positively associated with the adolescents' offensive character. That is, the way the adolescents saw marital conflict often resulted in the adolescents' offensive character.

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Examination of Consumer Purchase Intention for Foreign Infant Foods in China (중국에서 외국산 유아식품의 구매의도에 관한 연구)

  • Wu, Shi-Yuan;Yoon, Ki-Chang
    • Journal of Distribution Science
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    • v.15 no.3
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    • pp.49-60
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    • 2017
  • Purpose - The aims of this study are follows. We investigated to find out how country image and brand image affect the consumer perceived value, consumer attitude, and purchase intention of foreign infant foods in China. Especially, we focused on investigate for the moderating role of consumer knowledge between national image, brand image and consumer perceived value of foreign infant foods in China. Research design, data, and methodology - This study analyzed the effect of national image and brand image on purchase intention through consumer perceived value and consumer attitude. This study collected data for empirical analysis of Chinese consumers who have been purchase experience infant foods in China. 256 copies of questionnaire data were used for substantial analysis. Before testing the hypothesis, factor analysis was conducted to test the construct validity of measurement items. Hypotheses about effects between variables were verified using structural equation modeling analysis and hierarchical regression analysis. Results - First, the country image had a positive effect on consumer perceived value of foreign infant foods. Second, the brand image had a positive effect on consumer perceived value of foreign infant foods. Third, the consumer perceived value had a positive effect on consumer attitude. Fourth, the consumer attitude had a positive effect on purchase intention. Fifth, the consumer knowledge was moderating roles between brand image and consumer perceived value of foreign infant foods. However, the consumer knowledge did not effect of moderating between country image and perceived value of consumers. Conclusions - First, the impact of country image and brand image on consumer perceived value of foreign infant foods in China can be seen as a universal psychology of consumers who trust pure foreign products such as high quality, technology, etc. Second, consumer perceived value of foreign infant foods has a positive effect on consumer attitude, and this attitude is leading to purchase intention. Third, the consumer knowledge between brand image and perceived value acts as a moderating variable. It means that the consumer's knowledge can shape the perception of the brand image more strongly.

The Influence of Usage Intentions of Social Network Services in MICE Industry: Focused on the Gender Differences (MICE 산업의 SNS 이용의도에 미치는 영향: 성별차이를 중심으로)

  • Jang, Sung-Hee
    • The Journal of the Korea Contents Association
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    • v.20 no.3
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    • pp.506-514
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    • 2020
  • The purpose of this paper is to examine the factors influencing usage intentions of Social Network Services (SNS) in MICE (Meeting, Incentive travel, Convention, and Exhibit and Event) and moderating effects of gender. This model tests various theoretical research hypotheses relating to MICE industry, SNS characteristics, and Technology Acceptance Model (TAM). The target population of this study is SNS users with MICE participation experience. The results of hypothesis testing are as follows. First, information provision, convenience, service quality and SNS usage experience positively influence attitudes toward SNS. Second, attitude positively influences usage intention of SNS. Finally, information provision and service quality to attitudes toward SNS for males are significantly large than those for females. Convenience and SNS usage experience to attitudes toward SNS for females are significantly large than those for males. And attitude to usage intention toward SNS for males are significantly large than those for females. The results of this study will provide various implications to improve usage intentions of SNS in MICE industry.

Contextual Factors and Rating Behavior in the Peer Evaluation System (동료평가 시스템에서의 상황맥락 요인과 평가행동)

  • Park, Jong-Hyuk
    • Journal of the Korea Society of Computer and Information
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    • v.17 no.3
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    • pp.175-183
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    • 2012
  • The study investigates peer rating, one of the most commonly used sources of performance rating other than those of supervisors. On the whole, both field and laboratory studies indicate that peer assessment is a valid and reliable evaluation procedure, but on average, peer rating is not usually accurate. The aim of the investigation is to explore the relationship of beliefs and attitude about the performance appraisal system as well as a dispositional characteristic as self-monitoring with rating behavior. In particular, the study tests whether the relationship between rating context variables-appraisal self efficacy and appraisal validity- and rating behavior depends in part on the personality of the rater. Data from 445 undergraduate students are analyzed for hypotheses testing. The study finds evidences that the high on appraisal self efficacy and appraisal validity are more likely to affect discriminating rating tendency and to reduce rating level. Results also show that self-monitoring make the moderating effects between contextual factors and rating behaviors. Some implications, future research directions, and limitations are discussed.

The reliability analysis of Acoustic Emission(AE) testing for crack detectivity by sensors and materials (AE(음향방출) 검사 시 센서 및 재료에 따른 균열 검출능에 대한 신뢰성 분석)

  • Nam, Jun-Young;Lee, Sang-Yun;Hwang, Woong-Gi;Lee, Bo-Young
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2011.04a
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    • pp.419-423
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    • 2011
  • Unlike other non-destructive inspection method, AE Structural defects that are likely to grow in the operation status can be detected, and the advantage of being due to the continuous monitoring of large structures has been widely used to evaluate the stability. AE sensor used to detect sound wave that occurs between 20kHz to 20MHz. and Sound wave result may vary depending on sensor's sensitivity. In this paper, Tensile test conducted on STS 304 and SS400, and tries to detect the crack signal. In tensile test, specimens were conducted using different sensor sensitivity to the same tensile test condition. The crack signal parameters divided into 4 types of communities by conducting cluster analysis. It was demonstrated that crack signal of two sensor is not different by statistical analysis of null hypotheses. Based on the results, waveform of this tension test is crack signal.

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A study of the effect of interior colors of fashion retail stores on green store image and moderation of environmental concern (패션소매점포 매장 인테리어 색상의 친환경 점포 이미지에 미치는 영향 및 소비자 환경인식 조절 효과 연구)

  • Lee, Eun-Jung
    • The Research Journal of the Costume Culture
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    • v.26 no.3
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    • pp.377-389
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    • 2018
  • Consumer interest in eco-friendly fashion products has been consistent. While most relevant research emphasizes individual morals and environmental concern as the most crucial determinants to eco-friendly consumption behavior, more recent studies point out that in so doing there has been somewhat a neglectance on the importance of fundamental marketing strategies. More specifically, the crucial role of interior colors in fashion retail stores has been managerially considered something certain yet no empirical results have been found to support such a strong managerial assumption. For instance, colors such as green, blue, and brown are believed to represent natural images and are more appropriate to the eco-friendly marketing and the relevant research has been lacking. Therefore, this study attempts to explore the effect of in-store interior design colors (green versus non-green) on consumer perception of green store images. A total of 382 respondents were gathered for an online survey using differing store images as the stimulus and used for testing hypotheses. In the results, respondents exposed to store images using green interior colors reported a higher evaluation of green store image of the store. The effect is found to be significantly moderated by respondent's environmental concern: to explain, respondents of high environmental concern are less influenced by green color interiors when they evaluate the brand's eco-friendly image. In sum, the positive influence of green interior colors on green store image is found statistically significant, with its stronger effect for consumers of low concern. Managerial and academic discussions are provided.

Impacts of Leadership Empowerment of Multinational Enterprise on English Education on Job Satisfaction and Organizational Commitment (다국적 영어교육 기업 내 리더의 임파워먼트가 직무만족과 조직몰입에 미치는 영향)

  • Kim, Hyun-soo;Lee, Jae-yon
    • Journal of Practical Engineering Education
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    • v.7 no.2
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    • pp.135-146
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    • 2015
  • This study aimed for testing the effects of the empowerment in the circumstances of remote management that managers and employees were in separate countries. For this purpose, researchers collected survey data from 79 local teachers in multinational enterprises on English education and performed Structural Equation Modeling. The hypotheses below are revealed as significant. Firstly, empowerment had a positive effect on job satisfaction, but had a negative effect on job stress. Secondly, empowerment had a positive effect on organizational commitment. Thirdly, job satisfaction had a positive effect on organizational commitment. Fourthly, job stress had a negative effect on organizational commitment and job satisfaction mediated the relationship between empowerment and organizational commitment. Finally, job stress mediated the relationship between empowerment and organizational commitment. And the results of this study suggest that the employees' job satisfaction and organizational commitment can be enhanced using empowerment in the remote management system.

Linking ethical leadership to followers' behaviors-Moderating role of psychological ownership in the effect of ethical leadership on followers' behaviors (윤리적 리더십과 조직구성원 행동 간의 관계- 심리적 소유감의 조절역할)

  • Kim, Hye Kyoung;Lee, Ung Hee
    • Journal of Digital Convergence
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    • v.12 no.10
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    • pp.109-119
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    • 2014
  • The two main purposes of this study were to investigate the influence of ethical leadership on employees' behaviors in terms of organizational citizenship behavior (OCB) and in role behavior and to explore the mediating role of psychological ownership in the relationship between ethical leadership and employees' behaviors (OCB and in role behavior). To achieve these two research purpose of this study, this study employed two research methods: literature review and empirical testing of the developed hypotheses. The results showed that there was a positive and statistically significant relationship between ethical leadership and employees' behaviors (OCB and in role behavior), and psychological ownership played as a moderator in the relationship between ethical leadership and employees' behaviors. Based on the findings, this study discussed practical implications and suggested future research directions.