Final answer:
The DSM-V does not explain the causes of various psychological disorders; instead, it focuses on symptoms, diagnosis criteria, and includes a broad range of disorders including personality and drug use disorders.
Step-by-step explanation:
The DSM-V (Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition) is a guide published by the American Psychological Association to assist in the diagnosis and classification of mental disorders. The DSM-V does not explain the causes of various psychological disorders; this is because it mainly focuses on the symptoms, criteria, and guidelines for diagnosis. While the DSM-V includes a classification of personality disorders, provides a broad range of psychological disorders, gives reliable guidelines for diagnosing disorders consistently, and lists symptoms within descriptions of each disorder, it intentionally refrains from theorizing about the etiology of the disorders. Personality disorders, as mentioned in DSM-V, are enduring and inflexible patterns that lead to significant distress or impairment, and they are not attributed to substance use or another medical condition. Drug use disorders are also covered in the DSM-V, emphasizing the various criteria for diagnosing specific substance use disorders and emphasizing the compulsive pattern of drug use.