This study measures the impact of an additional training in classroom management on physical and sports education trainees' self-efficacy feeling. An experimental group having received a complementary theoretical and practical formation in classroom management has been compared to a focus group which has followed the initial formation course. Two measures of this feeling have been taken at different moments by using the questionnaire Ohio State Teacher Scale (OSTES) translated in French. This

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... vice is made of three sub-scales of eight items each related to the teaching strategies adopted by the teacher in his classroom management and his capacity to involve the students in this task. The analysis allows the trainees who have received an additional training in classroom management to express a feeling of efficiency higher than those who received usual initial training.