Ravanshenasi & Din

This study seeks to investigate the mediating role of psychological well-being in the relationship between optimism and family efficiency. The statistical population includes all the married employees of higher education institutions and centers of Qom province in 2014-2016. Based on Tabachnik and Fidell's rule, at least 122 samples should be selected from the mentioned population; so with a 50% increase, there was a total of 183 people in the sample. This research is of the "descriptive-correlative" type, and a questionnaire is used as the data collection instrument. For data analysis, descriptive statistics was used to describe the data and structural equation analysis was used to test the research hypotheses. Based on the obtained results, there is a positive and meaningful relationship between "optimism" and "family efficiency". Also, there is a positive and meaningful relationship between "optimism" and "psychological well-being". In addition, a positive and meaningful relationship was found between "psychological well-being" and "family efficiency". The results also proved the mediating role of the "psychological well-being" variable with a high coefficient and an acceptable significance level.