Searching for our best version: Expertise and excellence in Clinical Psychology

Expertise and excellence in Clinical Psychology are receiving renewed interest in the international scene. How clinical psychologists do their work, depending on which psychological treatments they apply, explains a large amount of the variability in treatment outcomes. Evidence concerning the expertise effects is largely contradictory owing to the absence of an operational consensus definition. The present opinative narrative review attempts to analyze the literature on the topic, proposes a definition and pursues to stimulate the debate among academics and clinicians to consider the expertise as a key variable in treatment effectiveness. The Spanish training model in Clinical Psychology is discussed, aiming to systematize the training and supervision in order to promote excellence in clinical performance throughout the professional cycle.