Freud's psychodynamic theory emphasizes that "personality is shaped by unconscious psychic conflicts" and that "behavior can be influenced by forces outside of conscious awareness." Since these forces are "outside of conscious awareness", it would be difficult for Watson to know exactly what type of stimulants/forces to apply to achieve the desired result. There are also many limitations to this theory because it is based on concepts that cannot be tested experimentally. If Watson knew the exact connection between these forces and how they influence the individual, then according to Freud, he could unconsciously (especially in childhood) direct the individual to become the specialist