Recent studies have shown that genetically determined properties such as the size of a human body can be environmentally modified. If this is the case, we can assume that one's intelligence is also malleable, not fixed and quantifiable. Based on neurological studies, this paper proposes a new conception of the psychological evaluation process. Challenging the use of intelligence tests that measure and as a result contribute to the fabrication of inequalities (Perrenoud, 1997), the paper explores ways in which a truly interactive encounter between the evaluator and the evaluated can be achieved. This can be done by inverting the usual goals of the evaluation process, which are to diagnose the subject and then to explain and reassure when and if at all possible. lnstead I argue that testing should be used first to reassure, and then to gain better understanding of the subject's performance. Measurements for labelling and diagnostic purposes are appropriate only when access to specialized services is at stake. This alternative perspective promotes a dynamic encounter between subject and evaluator and implies testing tools that meet real problem-solving characteristics. Evaluations that satisfy these requirements allow us not only to gain a better understanding of the subject's learning abilities and strategies but also to bring real and durable improvements in his/her self-perception.