Which symptom is considered characteristic of schizophrenia?

Delusions are a hallmark characteristic of schizophrenia. They are defined as fixed, false beliefs that remain unchanged even when presented with contradictory evidence. Individuals with schizophrenia may experience various types of delusions, such as paranoia (believing that one is being persecuted) or grandiosity (believing one has exceptional abilities or fame). These delusions can significantly impact a person's thoughts, behavior, and perception of reality, contributing to the overall manifestation of the disorder.

In the context of schizophrenia, symptoms like high levels of anxiety or obsessive thoughts may occur, but they are not defining features of the disorder itself. Fear of leaving home can be associated with other conditions, such as agoraphobia or anxiety disorders, rather than being a central symptom of schizophrenia. Therefore, delusions stand out as a core symptom characteristic of schizophrenia, making it the most accurate choice in this context.