Final answer:
Obsessive-Compulsive Personality Disorder is characterized mainly by a deep preoccupation with perfectionism, control, and orderliness, often leading to significant distress or impairment in social and occupational functioning.
Step-by-step explanation:
The key characteristics of Obsessive-Compulsive Personality Disorder (OCPD) include a preoccupation with perfectionism, extreme control, and orderliness. OCPD is a personality disorder defined by a chronic pattern of preoccupation with rules, excessive attention to details, and a striving for perfection that may interfere with task completion. Individuals with OCPD often prioritize work and productivity over leisure and relationships, have a rigid adherence to moral and ethical codes, and may be unable to delegate tasks unless others will follow exact guidelines. They may also be characterized by a tendency to be economical with resources to the point of stinginess and display rigidity and stubbornness.
It's important to note that OCPD is distinct from Obsessive-Compulsive Disorder (OCD), which is characterized by intrusive thoughts and repetitive behaviors, and treatments and interventions for these two conditions differ.