In Algeria, there are edifying figures on the extent of repetition in the various levels of education, particularly in the middle school cycle. A situation that requires the implementation of a strategy to fight against this phenomenon, and for this purpose the subject of this work is based on school failure translated into repetition which has become a phenomenon that we often hear about, but whose causes we still do not know. Thus, in this context, we can draw the following problematic: What are the factors that could explain the phenomenon of repetition? In order to carry out this study on the repetition of school years in the junior cycle in Algeria, the most adopted method for the nature of the information to be collected on the ground is the "survey by sampling", it is a technique which makes it possible to collect information on a part of the population in order to study certain characteristics, by constituting a sample of individuals which one will question.