Order the Spectrum of Schizophrenic and Other Psychotic Disorders as Described

Order the spectrum of schizophrenic and other psychotic disorders as described by the DSM-5 on a gradient of psychopathology from least to most severe.
________ Delusional disorder
________ Schizotypal personality disorder
________ Schizophrenia
________ Brief psychotic disorder
________ Psychotic disorder associated with another medical condition
________ Catatonic disorder associated with another medical condition
________ Schizoaffective disorder
________ Schizophreniform disorder
________ Substance-induced psychotic disorder