What is the DSM?

The DSM, or Diagnostic and Statistical Manual of Mental Disorders, is specifically designed as a manual for diagnosing and classifying mental disorders. It provides standardized criteria and classifications, which help clinicians make accurate diagnoses based on observed symptoms and established guidelines. This manual is critical in ensuring consistency in the diagnosis and treatment of mental health conditions across different practitioners and settings.

In contrast, while the other options mention various aspects of psychology, they do not accurately capture the primary function of the DSM. It is not a collection of psychological theories, a treatment protocol, or merely a reference guide for psychological research; instead, it focuses uniquely on the categorization and identification of mental health disorders. This specialized role makes the DSM an essential tool in both clinical and research settings.