McCoy smoked marijuana for the first time at a recent party, and almost immediately, he experienced concerning hallucinations. He thought it was part of the experience, but then several days later, he was still hallucinating and excessively mistrustful of everyone around him. His roommate recommended that he see a counselor. There, his likely diagnosis will be
Substance-induced psychotic disorder
Schizoaffective disorder
Schizophrenia
Schizophreniform disorder
