Final answer:
People with delusional disorder do hold persistent, potentially plausible delusions which are not bizarre. These delusions are unjustified and despite contradictory evidence, they are firmly held. Examples of delusions held can involve paranoia or grandiose thoughts.
Step-by-step explanation:
The statement is true that people with delusional disorder have persistent, delusional beliefs that sound plausible and are never bizarre. Delusional disorder involves individuals holding onto beliefs firmly despite contradictory evidence, often rejecting reality. These beliefs can range from the paranoid – such as believing that people are plotting harm against them, to the grandiose – like thinking one holds unique knowledge or has special powers. However, these delusions are usually plausible and aren't bizarre or completely outlandish, distinguishing them from some types of schizophrenic delusions.
For instance, someone with delusional disorder might believe they are being followed by other people, whereas a person with schizophrenia might believe that aliens are inserting thoughts into their brain; the former is more believable and less bizarre than the latter. There's no denying that delusional disorder contributes to a significant disruption in the individual's life, but the delusions held by these individuals typically fall within the realm of possibility, even if they are false and unjustified.
Learn more about Delusional Disorder