People with schizophrenia often have disturbed perceptions, such as which are sensory experiences without sensory stimulation. compulsions delusions hallucinations obsessions

I believe the correct answer is hallucinations.

People with schizophrenia, a chronic and severe mental disorder that affects person’s thinking, feeling, and person’s behaviour, often have disturbed perceptions, such as hallucination, which are sensory experiences without sensory stimulation that involve the apparent perception of something not present.

answer; i believe the correct answer is (4) flip a coin as each participant arrives,heads indicates assignment to the first group: tails indicates assignment to the second group;