1- Difficulties concentrating
Impaired memory
impaired decision making, thinking clearly etc
2- Diagnosis of an individual in made in relation to 5 different axes, (list all axes). They provide comprehensive and useful information such as factors to take into account when planing treatment
3- I would just look at the advantages categorical approaches to classifying mental disorders eg user friendly, increase growth of expert knowledge, devise treatment management plan etc
4- Psychodynamic model propose that all mental disorders the results of unresolved psychological conflicts that occur beneath the ordinary level of conscious awareness. whereas. Behavioural model proposes that phobias are acquired, maintained and modified through environmental consequences such as reward and punishment.
Hope these helpp