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. When orientation is provided, there are indicatives of an increase in client resistance (Patterson & Forgacth, 1985), and cooperation (Barbera & Waldron, 1994). Also there are indications of some discrete changes at the end of the intervention (Orlinsky, Grawe & Parks, 1994), as well as adverse effects pertinent only to the initial meetings with families (Harwood & Eyberg, 2004). These factors are equally shown. In the famous 1985 study, Patterson and Forgatch observed an intervention with parents. They concluded that orientation and confrontation led to an increase in resistant behaviors. However, facilitation and support led to a decrease in such behaviors. Bischoff and Tracey (1995) define resistance as any behavior that indicates opposition to the therapist, the therapeutic process, or even to the session's agenda. According to Patterson and Chamberlain (1994) when clients are parents and have contact with the benefits achieved by the taught procedures, a decrease in resistance and increase in cooperation appears. Barbera and Waldron (1994) examined pieces of tapes of second sessions with 12 families of juvenile offenders, finding that the category support represented the highest frequency (41%), followed by orientation (21%). Sequential analysis revealed that support resulted in cooperation for most clients, and orientation on the other hand was not followed by resistance, but rather produced an increase in cooperation to half of the families. The authors' justification for this result lies in the fact that the therapist when orienting, addressed the whole family and not only one member, which was interpreted as beneficial by the clients. Contrary to Barbera and Waldron's results (1994), the analysis of sections of second individual sessions with parents showed positive correlations between support and dropout, and questioning and dropout (Harwood & Eyberg, 2004). The authors observed a prevalence of closed questions rather than open questions in the group that dropped out of treatment. This suggests that a balance of open and closed questions during treatment is important. Although verbal support increased cooperation during the first session, they also concluded that verbal support can result in temporary effects or insufficient adherence. Literature indicates that the use of interpretation and empathy predicts significant changes at the end of therapy (Orlinsky et al., 1994). However, there are still some diverging conclusions regarding dropout (Piper et al., 1998; Yano, Almeida & Meyer, 2008). Orlinsky et al. (1994) examined successful and unsuccessful individual interventions, observing that the categories interpretation and support/empathy occurred with greater frequency in interventions that obtained positive results. …