Most commonly assessment has a written format being consisted of a series of questions referring to the curriculum – specifically the part of the curriculum delivered by the tutor. However, assessment can be developed through different methods in accordance with the tutor’s plans on curriculum delivery. When other scientific sectors are involved in the educational framework, like in the case of psychology, assessment is based on the findings of clinical research – conducted in this case through an interview with the learners related with the specific research. in any case, the use of additional practices like the observation or the evaluation of written tests is possible within the context of a psychological assessment project in education. In most cases, assessment in education is related to the identification and the evaluation of the cognitive capabilities of learners as well as with their response to the methods used by teachers/ professors for the delivery of the curriculum. In other words, assessment can also work as a tool for the evaluation of the performance of teachers/ professors within a specific educational context.The value of the assessment for the identification of the failures related to the delivery of the curriculum or its understanding by learners is significant. The specific issue has been examined by Bowen et al. (2005). The above researchers used a series of data collected ‘using the Elementary School Success Profile’ (Bower et al., 2005, 491) and came to the conclusion that ‘preassessment knowledge was not highly correlated with obtained data. preassessment expectations matched obtained data only about 41% of the time, and knowledge varied by domain, source, and grade level’ (Bower et al., 2005, 491). In accordance with the above study, teachers in elementary schools should be given appropriate training in order to improve their knowledge on the learners’ perceptions and conditions of life. this knowledge would help them at a next level to understand and evaluate more effectively the response of learners to the methods used by teachers for the delivery of the curriculum.