Strengths:
- Methods and theories of psychoanalytic thinking contributed to experimental psychology
- Many psychoanalytic personality theories are still influential today
- This opened a new view on mental illness and ways to relieve symptoms of distress
Criticisms:
- Freud's theories overemphasized the unconscious mind, sex, aggression and childhood experiences
- Many concepts are difficult to measure and quantify
- Most of Freud's work was based on case studies rather than scientific research