

The following blog includes information pertaining to human resources, organizational development and industrial-organizational psychology. Stay up to date on the latest research by reading the summaries of published studies, editorials, and periodicals.
Hershcovis and Barling collected research up to February of 2008. The research they included in the meta-analysis had to fulfill several requirements. These included:
In the end, the researchers had compiled 66 sources of information. T-tests were utilized to compare supervisor aggression and co-worker aggression. They also used Z-Tests to evaluate aggression between co-workers and outsiders. Sub-analysis were used in cases where a study included data between coworker and supervisor aggression.
According to the researchers, results found that supervisors had the biggest impact, followed by co-workers than outsiders. It is suggested that there is a significant impact on job satisfaction, affective commitment, intent to turnover,general health, emotional exhaustion, depression, physical well being, interpersonal deviance, organizational deviance, and performance (Hershcovis & Barling, 2009). In regards to health, there was no variance between the source of aggression. However, when aggression originated from a company member, it negatively affects the employee's image of the organization. This is based on the fact that employees have a psychological contract that assumes the organization will keep them safe.
When evaluating their own study, Hershcovis and Barling (2009) state that the meta-analysis required a large amount of judgment. They were required to create a consistent scale among studies that used a variety of measurements.
My personal concern with the study is that I feel their correlations were rather weak to claim significance. There was only one variable that had a correlation greater than .05, which was Supervisor-directed deviance. All of the other variables were less than .35. I suggest that readers take this meta-analysis lightly as the findings may not be as significant as suggested. Luckily, this topic is becoming more common and therefore other studies can be found.
Work Cited
Hershcovis, M. S. and Barling, J. (2010), Towards a multi-foci approach to workplace aggression: A meta-analytic review of outcomes from different perpetrators. Journal of Organizational Behavior, 31: 24–44. doi: 10.1002/job.621
Think about these questions for a minute. What is your answer? What proof do you have to backup your answers? If you have none then it is time to develop a survey asking employees their opinions of the company's on-boarding. It should be done immediately after new hire orientation and after 3 months of working. By conducting the survey twice, both the on-boarding and learning curve can be evaluated.
If you do not have on-boarding, then maybe its time that you and I talk!