Take the following as truth: Well-known theories of child development'Freud's, Skinner's, Gesell's, and Piaget's, for example'provide little comfort, since dramatic shifts in favored theories have occurred since the launching of systematic study of children about 100 years ago.
Then the following statement: "Freud, Skinner, Gesell and Piaget all studied child development." is true, false, or inconclusive?
Answer: True