Document Type : Research Paper

Authors

Abstract

Dissertations  are a part of the outputs of the research system of our universities.  It is necessary to evaluate them periodically to ensure that their   quality   is   developing.   In   some   countries   such   as  U.S.A, dissertations  have been evaluated annually based on several criteria. In Iran,  dissertations  of some fields such as sociology  and management have been studied and evaluated against such criteria as: the quality of the methodology,  references  and documentations,  theories tested  and etc.   In  U.S.A.,   dissertations   have  been   evaluated   based   on  the importance  of titles,  methodological  credit  and  so  on.  one  type  of these   evaluations   is  meta  analysis  which   evaluates   the  previous researches  to summarize  and synthesize them when their findings are inconsistent  to  find out the cause of the inconsistencies  and conflicts between   them.   This   kind   of  research   is   sometimes   called   the evaluation   of past  researches  or  evaluation   of evaluations.  In  this article meta analysis,  its functions, its benefits  and its process will be discussed.