The study of Causal effect of participation in decision making on commitment and job satisfaction: Tests of mediator role of job characteristics and performance among faculty members of Urmia University

This research carried out with the aim of studying the causal effect of participation in decision making, organizational commitment and job satisfaction: testing the mediator role of job characteristics and job performance among Urmia university faculty members. Research, Statistical population is Urmia University faculty members who were over 450 people, among which 213 were selected using random relative stratified sampling. Research instruments were participation in decision-making of Marcolin and Moshanco (1990) Organizational Commitment Questionnaire of Balfour and Wechsler (1996), job satisfaction questionnaire of Bayfield and Ruth (1951), job characteristics of Hackman and Oldham (1975), job performance questionnaire of William and Anderson (1991). In the present study, for the analysis of hypotheses and examine relationships between variables, the Pearson correlation coefficient and structural equation modeling approach is used. The Pearson correlation coefficient results suggest that between participation, job characteristics and performance and between job characteristics and performance, commitment and job satisfaction is positive and significant. But there isn’t relationship between participation and commitment, that with mediation role of job characteristics, participation has indirect effect and positive on organizational commitment of faculty members. In other words, individuals with high sense of participation in decisionmaking under conditions of high sense of job characteristics indicate of their high levels of organizational commitment.