assumption is that clients are the experts in their lives and know what is best for them and how to achieve their goals. This is the essential assumption that defines SFBT. The therapist is only the expert on the questions that will evoke the change process. SFBT assumes that the clients have all they need to build a solution; they do not need the therapist to teach them skills or tell them what to do. With authentic SFBT practice resistance is rare or non-existent. The stance of curiosity and not knowing is essential for SFBT. SFBT is radically simple and looks easy to do, but in truth SFBT is very hard to learn. SFBT requires a very disciplined practice. Because of this, many practitioners end up using components of SFBT and not practicing pure SFBT. This is often done because it can be challenging for a practitioner to change from a problem-focused stance. On the side of the coin, many new SFBT trainees struggle with being overly optimistic and with not truly validating clients' pain. This might be because the focus necessary to apply their newly learned SFBT skills and techniques take the focus away from being 'with' the client. Authentic SFBT practice requires the therapist to be very attuned to the clients' verbal and non-verbal communication and adapt the questions to meet and better understand the client's perspective. Evidence-based status In the early days of the model, critics often said that SFBT does not have enough research. In 2000 a review of SFBT research just showed preliminary evidence of the efficacy of SFBT. However, in 2010 the SFBT research grew to a level where the evidence was promising, and today several meta-analyses show SFBT to be effective with internalizing issues. SFBT has a robust, broad, and growing evidence base and is recommended for use when deemed a good fit for the client and their problem. SFBT has been examined in two meta-analyses and is supported as evidenced-based by numerous federal and state agencies and institutions, such as SAMHSA's National Registry of Evidence-Based Programs & Practices (NREPP). The conclusion of the two meta-analyses and the systematic reviews, and the overall conclusion of the most recent scholarly work on SFBT, is that solution-focused brief therapy is an effective approach to the treatment of psychological problems, with effect sizes similar to other evidenced-based approaches, such as CBT and IPT, but that these