Analyse qualitative de la modification de comportements d’enseignement par la technique de la ligne de base multiple

Multiple baseline technique has been frequently related to success in teacher training. In this study, it was applied to change three enthusiastic behaviors by a pre-service teacher (hustles, dynamism, feedback). The experimental design was planned for 20 weeks. It comprised 28 lessons and was divided into several phases (baseline, treatment, maintenance, follow up). The experimental design was successful as well in target behavior modification as in short - and long-terme stability of the changes. Qualitative analysis of the results provided useful information about the evolution of target behaviors. The procedure pointed out: (1) the specificity of the evolution of the behavioral changes; (2) the influence of various factors on the short term stability of the behavioral changes; (3) the influence of the duration of the treatment on the long term stability of the behavioral changes, and (4) the positive effects of a timely recall intervention. Data confirmed the reinforcing effect of a systematic follow up in teacher prepatation.