The defectiveness of the effectiveness of the Hungarian general education revealed in the PISA survey appears in the higher education as well. The "Introduction to Informatics" subject has one of the lowest exam results among the students of the College of Nyíregyháza majoring in Computer Program Designer and Teacher of Computer Science. This subject is the mediator one for the elements of informatics for the students. By analysing the results of supplementary surveys I tried to find answers for the following questions: What are the relations between the exam results of the students and the secondary final examinations that should measure their previous knowledge? Can the weak results be explained by the thinking ability or rather the defectiveness of the special mathematics skills? What are the students' attributions towards the exam results? The results of the investigations and surveys, which have been done, show that most of the students come to higher education with a weak fundamental knowledge. In order to improve the results of the exams the individual improvement of those students who perform badly in the given fields is required.