What assessment tool is often utilized in diagnosing personality disorders like narcissistic or borderline?

The Millon Clinical Multiaxial Inventory (MCMI) is specifically designed to assess personality disorders and clinical syndromes. It takes into account the latest classifications of personality disorders, including narcissistic and borderline types, making it a valuable tool in clinical settings. The MCMI evaluates a range of personality characteristics and is structured to identify maladaptive personality styles, providing insights into a patient's psychological functioning.

By focusing on the nuanced aspects of personality disorders, the MCMI enables clinicians to form a better understanding of their patients' issues, which can lead to more effective treatments. In contrast, the other assessment tools listed serve different purposes: the Beck Depression Inventory focuses on depressive symptoms, the Hamilton Anxiety Scale measures anxiety, and the Montreal Cognitive Assessment is geared towards evaluating cognitive functioning. Thus, while each of these assessments is useful within its specific context, the MCMI stands out as the most directly applicable tool for diagnosing personality disorders like narcissistic and borderline disorders.