نتایج جستجو برای: mediation effect

تعداد نتایج: 1656401  

2008
Zhen Zhang Michael J. Zyphur Kristopher J. Preacher

Testing multilevel mediation using hierarchical linear modeling (HLM) has gained tremendous popularity in recent years. However, potential confounding in multilevel mediation effect estimates can arise in these models when within-group effects differ from between-group effects. This study summarizes three types of HLM-based multilevel mediation models, and then explains that in two types of the...

2013
Ubud Salim

1 ( Economics Faculty, Widyagama University, Malang, Indonesia ) 2,3,4 ( Economics and Business Faculty, Brawijaya University, Malang, Indonesia ) ____________________________________________________________________ Abstract: This study aimed to test empirically: 1). Effect of external business environment adaptability to company performance. 2). Effect of external business environment adaptabi...

Journal: :زن در توسعه و سیاست 0
محمدحسن صیف استادیار، گروه علوم تربیتی، دانشگاه پیام نور، تهران، ایران میترا یادگار کارشناسی ارشد مدیریت آموزشی، دانشگاه آزاد اسلامی، واحد شیراز،گروه علوم تربیتی، شیراز، ایران

burnout syndrome includes aspects of emotional exhaustion, depersonalization and decrement of personal accomplishment to which staffs vulnerable to because of their exposure to physical and psychological stressors. the necessity of this research is related to inadequate research on women. the current research aims to explain burnout of working women with an emphasis on the role of organizationa...

Journal: :Behavior research methods, instruments, & computers : a journal of the Psychonomic Society, Inc 2004
Kristopher J Preacher Andrew F Hayes

Researchers often conduct mediation analysis in order to indirectly assess the effect of a proposed cause on some outcome through a proposed mediator. The utility of mediation analysis stems from its ability to go beyond the merely descriptive to a more functional understanding of the relationships among variables. A necessary component of mediation is a statistically and practically significan...

Journal: :Psychological methods 2001
C M Judd D A Kenny G H McClelland

Analyses designed to detect mediation and moderation of treatment effects are increasingly prevalent in research in psychology. The mediation question concerns the processes that produce a treatment effect. The moderation question concerns factors that affect the magnitude of that effect. Although analytic procedures have been reasonably well worked out in the case in which the treatment varies...

2013
Taekyung Kim Hyunjung Park Sangkyu Rho Sewon Moon

In this paper, we investigate the effect of listing mediation history in the context of social network service, which has been recognized as a crucial platform for word-of-mouth diffusion. We focus on how people continuously mediate a message which is previously created. Information mediation refers to active participation of relaying an inbound message to outbound subscription nodes with sendi...

2002
Sarah Brown Ilda Ladeira Cara Winterbottom Edwin Blake

This paper presents a study that explores the use of mediation in virtual environments (VEs) used for cultural storytelling. A VE was created in which a traditional San story was told. Two forms of mediation were used: visual mediation and audio mediation. Four versions of the VE were implemented, differentiated by the type and amount of mediation included. 77 subjects were tested, each experie...

2007
Shlomo Berkovsky Tsvi Kuflik Francesco Ricci

One of the main problems of collaborative filtering recommenders is the sparsity of the ratings in the users-items matrix, and its negative effect on the prediction accuracy. This paper addresses this issue applying cross-domain mediation of collaborative user models, i.e., importing and aggregating vectors of users' ratings stored by collaborative systems operating in different application dom...

2002
Sarah Brown Ilda Ladeira Cara Winterbottom Edwin Blake

This paper presents a study that explores the use of mediation in virtual environments (VEs) used for cultural storytelling. A VE was created in which a traditional San story was told. Two forms of mediation were used: visual mediation and audio mediation. Four versions of the VE were implemented, differentiated by the type and amount of mediation included. 77 subjects were tested, each experie...

2003
Sarah Brown Ilda Ladeira Cara Winterbottom Edwin H. Blake

This paper presents a study that explores the use of mediation in virtual environments (VEs) used for cultural storytelling. A VE was created in which a traditional San story was told. Two forms of mediation were used: visual and audio. Four versions of the VE were implemented, differentiated by the types of mediation included. An experiment was conducted, during which measurements of presence,...

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