Step 1: Understanding the Question:
The question identifies the founder or "father" of the Psychoanalytic Theory, which is a major pillar in psychology and social work practice.
Step 2: Detailed Explanation:
Psychoanalytic theory focuses on the unconscious mind and how it influences human behavior and personality.
The options represent different schools of thought:
- Carl Rogers: Known for Client-Centered Therapy (Humanistic Psychology).
- Sigmund Freud: Developed Psychoanalysis, introducing concepts like the Id, Ego, Superego, and the unconscious mind.
- B.F. Skinner: Known for Operant Conditioning (Behaviorism).
- Ivan Pavlov: Known for Classical Conditioning (Behaviorism).
Sigmund Freud is universally recognized as the father of Psychoanalytic Theory.
Step 3: Final Answer:
The correct answer is Sigmund Freud.