many health studies were interested to find the association between multiple predictors with a dependent variable. the popular method to analyze these studies was multiple regressions that assumed the predictors were independent. while in practice some predictors may depend on each other and they could not be presented in a regression model simultaneously, as a result the appropriate models suc...

This study examined the relationship between social support and objective task performance in a field setting. a sample of 197 participants, mean age 23.13 years (Sd 3.56) completed measures of stressors, social support, and self-efficacy prior to performance. moderated hierarchical regression analysis revealed significant (p < .05) main effects for stressors (R2 = .12) and social support (∆R 2...

The current research drew upon the resource perspective (Grzywacz & Marks, 2000; ten Brummelhuis & Bakker, 2012) and firstly focused on the reciprocal mediation relationship between schedule control, work interference with family (WIF) and emotional exhaustion. First, the present study proposed that WIF mediates the negative relationship between schedule control and emotional exhaustion, and em...

the present research aims to examine the relationship between diversity management and its effect on staffs’ affective commitment with study on mediation role of transformational leadership and perceived justice in qaen health network. in theoretical sector with integration of human resource management and performance theories and the theory of diversity and leadership, a theoretical model has ...

in today’s leading organizations, employees’ empowerment is considered as a significant issue in human resource management cycle and it has become a central theme of management functions and practices. the present study aimed to investigate the relationship between empowerment of staffs and organizational commitment with organizational health mediation. the results showed that there is a relati...

Mediation models figure out how an effect occurred by hypothesizing a causal sequence. For a simple mediation model, a causal sequence is described in which an independent variable causes the mediator which sequentially causes the dependent variable. In this article, we tried to introduce to use standardized regression coefficient to the involving the simple mediation model since a standardized...

The purpose of this paper is to identify the roles of decentralization of the strategic decision-making process between contextual factors and decision process output. From analysis of alternative research approaches, a field survey was most appropriate methodological choice. This study is a field study of real organizations rather than an artificial setting. The questionnaire consists of items...