Joanna Stańczak has been co-creating Pracownia Testów Psychologicznych Polskiego Towarzystwa Psychologicznego for over three decades. She has been with the company since 1990 and has been a member of its management board since 2006. Since 2024, she has held the position of President of the Management Board and Deputy Head of the Scientific Department. She is a co-author of both Polish and adapted versions of many important methods of psychological assessment.

Joanna graduated from the Faculty of Psychology at the University of Warsaw, with which she was also professionally affiliated until 2009. Her experience and scientific competence are combined with deep involvement in the development of diagnostic standards and psychometrics in Poland.