ognitive and Methodological Conditions for Employing Previous Studies in Research ) Scientific Review)

Abstract

 Abstract This search paper aims at introducing the previous studies which are considered as one of the most important scientific pillars that are relied upon the scientific research project .It is a rich source through which the problem of the research to be carried out is elaborated, and its dimensions and fields are limited, and enriched it with knowledge and results reached by others in this field, with clarifying the methodological basics in employing the previous studies ,especially in regarding the summary, evaluation and employment.