Educational systems of countries are essential possessions of them in exposing with future potential challenges and they are wealth implement for reach to nations’ goals. So, evaluation of educational systems is very important to assure about sufficiency of efficacy and effectiveness of them. In this article, factors that have effect on efficacy and effectiveness of educational systems will be described.

In educational system evaluation, efficacy and effectiveness is considered for assessing quality of these systems. The quality of educational systems is conformity of present situation of elements with standards or aims.  Elements of educational systems include inputs, processes, products, outputs and outcomes that are evaluated in assessing efficacy and effectiveness. In educational systems, the most important inputs are attributes of instructors, learners and systems. The most important process is teaching-learning process and the most important products are the results of the mid-term exams and improvement situation of learner to upper levels. The number of graduates and quality of their services are output and the effects of graduates on different aspect of citizenship situation such as social, economical and cultural dimensions are outputs of educational systems. Evaluation of mentioned factors can be done internal, by the member of system, or external, by the external institutions. Educational evaluation is done by different approaches. The effective factors on evaluation of educational systems are inputs, processes, outputs, aims and objectives, evaluator and evaluation approaches.