promotion of psychological capital model in diabetic patients: an explanation of the role of quality of life.

objective: psychological capital is a new concept which has been raised since the third millennium and entered in organizational field since 2006. given the unique role of this concept in the production of corporate wealth it has been changed into a research basis for researchers and scholars. therefore, the present study aims to design a model for promotion of psychological capital with an emphasis on illness perception. method: statistical population includes all employed patients who suffer diabetes type2 and who are members of mashhad diabetes research centre. of this group 80 participants were selected according to available sample method. data was collected by questionnaires of illness perception(ipq), luthans capital of psychology and quality of life questionnair for diabetes  and was analyzed using structural equations and regression model with the help of amos software. results: the results showed that there is a positive relationship between illness perception and psychological capital, but this relation is not significant. however, when quality of life intervenes in this relationship, the coefficient and severity of correlation increases. conclusion: eventually, fitness test of the model confirms its appropriateness for diabetes patients