People with psychosis tend to make decisions based on limited evidence, which can contribute to the formation and persistence of delusions. This tendency is known as the "jump-to-conclusions" bias.

 Numerous studies have shown that individuals with delusions and psychosis often rely on limited evidence when making decisions. It is still debated whether this bias is specific to delusions or a general feature of psychosis. Some studies suggest that it is specifically associated with delusions, while others argue that it is present in various psychotic experiences. Further research is needed to clarify this issue.