Which two personality disorders are part of Cluster A along with schizotypal?

Cluster A personality disorders are characterized by odd or eccentric behavior. Schizotypal personality disorder, which is mentioned in the question, is one of the three disorders within this cluster. The other two disorders that belong to Cluster A are paranoid personality disorder and schizoid personality disorder.

Paranoid personality disorder involves pervasive distrust and suspicion of others, leading individuals to interpret motives as malevolent. Schizoid personality disorder is characterized by a pattern of detachment from social relationships and a restricted range of emotional expression in interpersonal settings. Both of these disorders share the common theme of social detachment or unconventional thought patterns, aligning them with schizotypal personality disorder, which is characterized by eccentric behavior and cognitive distortions.

The other options listed consist of personality disorders found in different clusters. Histrionic and narcissistic personality disorders fall under Cluster B, which includes dramatic, emotional, or erratic behavior. Antisocial and borderline personality disorders also belong to Cluster B. Avoidant and obsessive-compulsive personality disorders are classified in Cluster C, characterized by anxious or fearful behavior. Understanding these clusters helps in recognizing the distinct characteristics and behaviors associated with various personality disorders.