Which statement best describes the DSM criteria for schizophrenia?

Which statement best describes the DSM criteria for schizophrenia?

• A. Two or more of the following symptoms, including at least one of delusions, hallucinations, or disorganized speech; the disturbance must be continuous for at least 6 months with at least 1 month of active symptoms.
• B. Three or more symptoms including delusions, disorganized speech, and grossly disorganized behavior for at least 3 months.
• C. Two or more symptoms such as delusions, hallucinations, disorganized speech, grossly disorganized or catatonic behavior, negative symptoms; at least one of the first three; continuous disturbance for at least 6 months with at least 1 month of active symptoms; impairment.
• D. Only one symptom is required for schizophrenia.

Answer: (C)

Understanding the DSM criteria for schizophrenia hinges on matching several key features: you must have two or more symptoms from a defined set, with at least one must be a positive symptom like delusions, hallucinations, or disorganized speech. In addition, the symptoms must persist for a long period—continuous for at least six months, and with at least one month of active, or prominent, symptoms. There must be clear impairment in functioning, and the symptoms shouldn’t be better explained by another disorder, a medical condition, or substance use. Negative symptoms (such as flat affect or avolition) can also be part of the symptom mix and help meet the two-or-more requirement. The option that aligns with all of these elements—two or more symptoms including at least one of delusions, hallucinations, or disorganized speech; six months total duration with at least one month of active symptoms; and impairment—best captures the DSM description. The other statements fall short by omitting the impairment criterion, mis-stating the duration, or requiring only one symptom.

Understanding the DSM criteria for schizophrenia hinges on matching several key features: you must have two or more symptoms from a defined set, with at least one must be a positive symptom like delusions, hallucinations, or disorganized speech. In addition, the symptoms must persist for a long period—continuous for at least six months, and with at least one month of active, or prominent, symptoms. There must be clear impairment in functioning, and the symptoms shouldn’t be better explained by another disorder, a medical condition, or substance use. Negative symptoms (such as flat affect or avolition) can also be part of the symptom mix and help meet the two-or-more requirement. The option that aligns with all of these elements—two or more symptoms including at least one of delusions, hallucinations, or disorganized speech; six months total duration with at least one month of active symptoms; and impairment—best captures the DSM description. The other statements fall short by omitting the impairment criterion, mis-stating the duration, or requiring only one symptom.