RAD is one of the least studied disorders in the DSM and is difficult to accurately diagnose (Chaffin et al, 2006). There is also difficulty in distinguishing between consequences of maltreatment, disorganized attachment, and attachment disorder (Prior & Glaser, 2006). In the UK, according to the British Association for Adoption and Fostering (BAAF), only psychiatrists can diagnose RAD and any assessment relating to RAD must include a comprehensive assessment of the family history and individual history of the child (BAAF, 2006). There are other disorders that share many symptoms with RAD and are often comorbid or confused with RAD, such as anxiety disorder, posttraumatic syndrome disorder (PTSD), social phobia, and conduct disorder (Sadock, 2004) . The models of developmental psychopathology that will be evaluated in this essay are: the psychodynamic model and the systemic family model. Psychodynamic Model The psychodynamic model was developed by Sigmund Freud to describe the mental process as flows of libido (psychological energy) in the brain (Bowlby, 1999). In psychology, psychodynamics is the study of the interrelationship between different areas of the mind, personality or psyche, in relation to mental, emotional or motivational focuses, emphasizing the dynamism of the unconscious (Freud, 1923; Hall, 1954). Psychodynamics, fundamentally, focuses on the formation of psychic energy (Hall, 1954) and its distribution in the human system and on development by virtue of the interaction between "Id", "Ego" and "Superego" (Freud, 1923). Some of the key beliefs of psychodynamics are discussed here. First, Freud believed that the mind was like an iceberg (Freud, 1953), mostly hidden, and that free association would ultimately be... middle of paper... ..from this point of view the member of the family can understand the patient's situation and can help him to be treated appropriately, and the patient has the support of the family. On the other hand, putting too much stress on the family and not seeing other patient-related issues could be a weakness. The disorder may be caused by a medical or genetic problem and the approach could be critical and reductionist in this respect. Conclusion In conclusion, from my point of view the systemic family model seems to be better to justify and explain attachment disorder. Since attachment disorder is directly rooted in the family and the child's relationship with the caregiver (Bowlby, 1980), investigating the family system to improve and treat the disorder can be viewed more logically better and the patient may also have the family support and rebuild it. the relationship.