The study described the interaction between therapist and clients in a group intervention with two mothers and a grandmother. Five out of thirteen taped sessions were designated for analysis. Main results: a) therapist's categories that stood out: approval, recommendation, interpretation, information and information request; b) clients' categories that stood out: report, agreement, relation, and opposition, c) the probability for recommendation coupled with use of approval exceeded the probability of occurrence of other combinations. Possible explanations for the results were offered and new research questions were raised. Key words: parent training; therapeutic interaction; therapist's and client's behavior categories.According to Meyer (2006) and Tourinho et al. (2007) the description of the effects of therapist and client's verbalizations' is a crucial condition in the process of identifying the factors that allow the effectiveness of the therapy. This contributes to mental health policies as well as improving services. In addition, it helps researchers and teachers to formulate not only new theories, but also new training for future therapists.The literature that maps the therapist and client's behavior in an attempt to predict success and failure of the therapeutic process, gathers only a few studies regarding the category giving information; however, there is a variety of divergent positions when it comes to the categories orientation, interpretation and support. Keijsers, Schaap, Hoogduin and Lammers (1995) found that in a focal intervention with patients with panic disorder, the occurrence of theoretical information in the first session was negatively correlated with satisfactory results. Meyer (2009) systematized a database containing 495 therapy sessions of behavior-analytic psychotherapy with several therapists' categories, including giving information. She found that the average percentage of this category was 20% in the first session, declining to 6% up to 15% during the second to the forty-fifth session.