Modelowanie tendencji w binarnym podejmowaniu decyzji w uogólnionym nieliniowym modelu q-wyborcy [Modeling collective decision-making within the q-voter model with bias] Maciej Doniec (Doctoral School - Management, PWr, Wrocław) Collective decision-making plays a crucial role in politics, markets, and social behavior. However, real-world decision-making is shaped not only by social influence but also by personal biases, previous choices, etc., which are often neglected. To examine how such factors affect decision-making, we study a q-voter model that incorporates a self-reinforcing bias, providing insight into the interaction between group influence and individual bias.