The approval of the Department of Psychology on 2/4/2017 to record the subject of the researcher / Adel Samir Mohammed Hamdan, assistant lecturer in the Department of Philosophy in Education (Educational Psychology) entitled "Effect of the number of categories of the Likert scale on the results of the empirical analysis of the trend scale Towards a teaching profession according to the ladder of appreciation model (for the mattress) " Under the supervision of:   1- Prof. Dr. Imam Mostafa Sayed, Professor of Educational Psychology, Faculty of Education, Assiut University  2- Prof. Ali Ahmed Sayed Mostafa, Professor of Educational Psychology, Faculty of Education, Assiut University  3- Prof. Emad Ahmed Hassan, Professor of Educational Psychology and Vice Dean for Community Service Affairs                                                     And Environmental Development, Faculty of Education, Assiut University