Self-criticism involves how an individual evaluates oneself. Self-criticism in psychology is typically studied and discussed as a negative personality trait in which a person has a disrupted self-identity. The opposite of self-criticism would be someone who has a coherent, comprehensive, and generally positive self-identity. Self-criticism is often associated with major depressive disorder. Some theorists define self-criticism as a mark of a certain type of depression, and in general people with depression tend to be more self critical than those without depression. People with depression are typically higher on self-criticism than people without depression, and even after depressive episodes they will continue to display self-critical personalities. Much of the scientific focus on self-criticism is because of its association with depression.