Abstract
Cheating is a major phenomenon, occurring at all stages of schooling regardless of socialbackground, gender and educational level (Murdock and al., 2001). This issue has given rise tonumerous research and investigations but without questioning what is happening within a group ofcheaters. If spotting and quantifying cheaters has often been done in Education and TrainingSciences as in Developmental Psychology, this thesis aims to question what is at stake in therelationship between cheating partners via the cooperative angle in school. First, I will discuss thecommitment in cheating according to the situation of the student (alone or in pairs) through aplayful device, . Then, I will question students’ behaviors more precisely by putting them in front oftheir reactions. The Republican school has the particularity of having a story with each student(Giust Desprairies, 2018), touching the individual as well as the collective, it conveys prosocialvalues, and mainly that of trust (law no. 2019-791 of 26 July 2019). This research problematizesthis relationship of trust between the student and the school institution through cheating behavior.More specifically, it questions the place of cooperation in cheating in collectivity, the place of theinstitutional rule in the deployment of this behaviour and the role of inhibition in the proper conductof a transgressive collective activity.