Final answer:
Freud's psychosexual stages have been disproven and are not seen in other cultures.
Step-by-step explanation:
While most of Freud's ideas have not found support in modern research, we cannot discount the contributions that Freud has made to the field of psychology. Psychologists today dispute Freud's psychosexual stages as a legitimate explanation for how one's personality develops, but what we can take away from Freud's theory is that a large part of our mental life is influenced by the experiences of early childhood and takes place outside of our conscious awareness. However, one area of Freud's theory that has been disproven is the psychosexual stages. These stages are not seen in other cultures, indicating that they are not universal.