IntrOductIOnHigher education is an important type of investment in human resources which provides the knowledge, attitudes and skills required for students. The higher education plays a very critical role in the development of societies [1], and the educational services must be provided so that the students feel they are in a safe environment and thus providing more mental preparation for learning [2]. The educational institutions should teach the people who are responsible to take care of health in future generations and any neglect of duty, will create problems for societies [3].The universities have many clients whose consent depends on to student satisfaction [4], including their parents as the clients paying cost for the students' education, the companies as the clients employing them, and the faculty members as the clients teaching the students what they need for employing [5]. Among these clients, the students have attracted the most attention as the main customers of higher education and during the higher education they receive a variety of services including registration, course selection and other related services [6]. Therefore, the students' viewpoints toward the offered educational services can be considered a quality index of universities [7]. Knowing the students views about the educational services provided, is the essential factor for assessment of academic education quality [8]. Determination of what the students perceive and expect can provide valuable information for planners to promote the quality of educational services [9]. If the education officials are not aware of the students' expectations, it can cause dissatisfaction for them [10], besides, the lack of a direct relationship with the students makes the decision-makers fail to set the right priorities and the educational services are unable to meet the expectations of students and therefore, a gap in quality can be created. The lower gap between the expectations of students and education provided services represents the high quality of educational services provided.By determining the gap between the students' expectations and perceptions from the educational provided services, the planners can improve the quality of service and meet the students' needs [9].Several studies have examined the attitudes of students from the educational services. The studies which conducted in other countries, have reported that there is a negative gap between the students' expectations and perceptions from the quality of educational services, and the highest gap has been related to the assurance area [11]. A study in Iran reported that the students' expectations from the provided educational services were not met [12]. Another study of Iran reported that the students' expectations from the educational services were higher than their perceptions of these conditions. This study recommended that workshops on customer services, communication skills and personnel's technical skills development must be planned for and held. Moreover, allocating more resources to...