Match the following.

Central Force named by Freud              Example

1. Id                                                 a. drives and impulses

2. Ego                                               b. moral standards

3. Superego                                       c. rational thinking

1-a, 2-c, 3-b

Psychodynamic model was first formulated by Freud who believed that three central forces shape personality — instinctual needs, drives and impulses (id), rational thinking (ego), and moral standards (superego).