Jam to Success with the 2026 CBMT Music Therapy Practice Exam – Tune In and Ace It!

The correct choice identifies the category of personality disorders that includes both antisocial and borderline personality disorders as Cluster B. Cluster B personality disorders are characterized by dramatic, emotional, or erratic behavior. This cluster encompasses individuals whose behavior often leads to significant distress in relationships and difficulties in regulating emotions.

Antisocial personality disorder is marked by a pervasive pattern of disregard for the rights of others, often manifested through manipulative, deceitful, or impulsive behavior, while borderline personality disorder is characterized by instability in moods, self-image, and interpersonal relationships, alongside impulsive actions. Understanding these disorders as part of Cluster B is essential for recognizing the complexity of emotional and behavioral patterns that can affect therapy and interpersonal dynamics.

Clusters A and C encompass different types of personality disorders; Cluster A includes odd or eccentric disorders like paranoid and schizoid personality disorders, while Cluster C focuses on anxious and fearful disorders such as avoidant and obsessive-compulsive personality disorders. Cluster D is not an established classification in the DSM-5 for personality disorders, further confirming that the inclusion of antisocial and borderline personality disorders is appropriately categorized under Cluster B.