Avoidant Personality Disorder (often abbreviated as AvPD or APD) is a personality disorder characterized by extreme feelings of inferiority, hypersensitivity to negative evaluation, and unusual patterns of social inhibition. People with Avoidant Personality Disorder display several or more of the following characteristics in ways that hinder social and workplace functioning: 

- Avoidance of activities that involve socializing due to fear of criticism or rejection 
- Refusal to get involved with others unless they are certain of being liked 
- Inhibition in close relationships and/or new social settings  
- Negative self-beliefs, particularly regarding social skills and personality
- Reluctance to engage in new or unfamiliar activities 

Avoidant Personality Disorder 

Dependent Personality Disorder (commonly abbreviated as DPD) is a personality disorder characterized by intense separation anxiety and an excessive need to be taken care of by others. People with Dependent Personality Disorder display several or more of the following characteristics in ways that hinder social and workplace functioning: 

- Difficulty making simple decisions without advice and reassurance 
- Extreme reluctance to disagree with others for fear of losing emotional support 
- Avoidance of project initiation due to a lack of self-confidence in judgement or abilities 
- Tendency to immediately seek new relationships when old ones end 
- Preoccupation with fears of being left to care for self 

Dependent Personality Disorder 

Obsessive-Compulsive Personality Disorder (commonly abbreviated as OCPD) is a personality disorder characterized by persistent preoccupation with order, perfection, and control. People with Obsessive-Compulsive Personality Disorder display several or more of the following characteristics in ways that hinder social and workplace functioning: 

- Preoccupation with details, rules, lists, order, organization, or schedules
- Perfectionism that interferes with task completion 
- Excessive devotion to work, to the exclusion of social and other leisure activities 
- Inflexibility about morality, ethics, or values 
- Inability to get rid of worn-out objects, even those without sentimental value 

Obsessive-Compulsive Personality Disorder

- OCD, OCPD, and Autism Research
- Overlap between OCD and Autism 
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Research on Cluster C Disorders

- Avoidant personality disorder
- Dependent personality disorder
- Obsessive-compulsive personality disorder

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The newest section of the DSM-5 outlines 6 main personality disorders (schizotypal, antisocial, borderline, narcissistic, avoidant, and obsessive–compulsive personality disorder) that come from the 10 disorders (paranoid, schizoid, schizotypal, antisocial, borderline, histrionic, narcissistic, avoidant, dependent and obsessive–compulsive personality disorder) described in the traditional section.

Main Personality Disorders

American Psychological Association. (n.d.). Clinical psychology. American Psychological Association. https://www.apa.org/ed/graduate/specialize/clinical 

American Psychological Association: Clinical Psychology

Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

OpenStax Psychology (2nd ed.) Textbook

- Paranoid personality disorder
- Schizoid personality disorder
- Schizotypal personality disorder

Cluster A Personality Disorders:

- Antisocial personality disorder
- Borderline personality disorder
- Histrionic personality disorder
- Narcissistic personality disorder

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