Final answer:
Option 4 is not true about the unconscious according to the psychodynamic theory; the unconscious is a major part of our personality and has a significant influence on our behavior.
Step-by-step explanation:
The statement that is not true about the unconscious according to psychodynamic theory is: It is a small part of our personality and exercises extremely limited control over who we are and what we do. This is because, in Freud's view, the unconscious mind is actually a vast portion of our psyche, holding repressed memories and desires that greatly influence our behavior. It can be accessed through techniques such as dream analysis and the examination of Freudian slips, which are manifestations of repressed thoughts and feelings. Freud’s model likens the mind to an iceberg with the bulk lying beneath the surface as the unconscious, influencing conscious actions and emotions, often without our direct awareness.