Why are self-rating results in patients with schizophrenia often unreliable?

- Patient-reported outcomes should be interpreted with caution in schizophrenia.
- Prominent disorganization and cognitive impairment lead to unreliable results.
- Patients with chronic schizophrenia might consider themselves as normal.
- Flaws exist in the specific self-rating instruments.
- Flaws exist in the process of interpreting results from self-report.