Abstract: | The main goal of this article is to examine the epistemological foundations of the contemporary cross‐cultural psychology from a constructivist point of view. We argue for the necessity of heuristic paradigms like the eco‐cultural framework of John Berry. Such an approach can be considered as a systemic modelling of complex phenomena by a psychologist (e.g., the relations of “mind‐brain‐culture” as well as their development). At the individual level, we argue the necessity to surpass the classic distinction between competence and performance. Competences are differentiated here as “intuitive representations” (or elementary mental functions) and “reflective representations” (or superior mental functions). Intuitive and reflective representations remain at the origin of both behaviour and performance. Such systemic conception allows the theoretical possibility of a “relativist constructivism” that could be more suitable than the “absolutist constructivism” proposed by Jean Piaget. |