Main Article Content
The research is titled “Effect of Work Environment, Job Involvement and Cohesiveness within the Working Group on Employee Performance with Aspects of Job Satisfaction as a Mediating Variable in KPPN Purworejo”. The aims of research are to find out and to analyze the effect of work environment, job involvement and cohesiveness within the working group on employee performance with aspects of job satisfaction as a mediating variable. The method of research is survey with sampling technique uses non probability sampling by saturation sampling. Population from the research is all of employement KPPN Purworejo, it is known that sample size of this research is 35 respondents. Based on the result of research analysis data using Partial Least Square (PLS) indicated that :(1) Work Environment has positive and significant effect on employees job satisfaction KPPNPurworejo. (2) Work involvement has positive but no significant effect on employees job satisfaction KPPN Purworejo. (3) Group Cohesiveness has positive and significant effect on employee job satisfaction KPPN Purworejo. (4) Group Cohesiveness has positive and significant effect on employee performance KPPN Purworedjo. (5) Job Satisfaction has positive and significant effect on employee performance KPPN Purworejo. (6) Cohesiveness in Group directly affect employee performance , but also indirect effect on employee performance with mediated Job Satisfaction . It turns out that the direct effect coefficient 0.398 is greater than the indirect effect is 0.150 . So the results of the above analysis it can be concluded that job satisfaction is only partially mediates the relationship between Group Cohesiveness in the Employee Performance .