Final answer:
Freud's theory focuses on psychosexual stages and basic human urges, while Erikson's theory emphasizes social aspects and the ongoing development of personality throughout the lifespan. Freud's theory includes five psychosexual stages, whereas Erikson's theory includes eight psychosocial stages.
Step-by-step explanation:
Freud's and Erikson's theories of development differ in several important ways. First, Freud's theory focuses on psychosexual stages and the influence of basic human urges on development, while Erikson's theory emphasizes the social aspects of development and the importance of negotiating between base desires and social acceptance. Second, Freud believed that personality development is fixed in early life, while Erikson proposed that personality continues to change throughout the lifespan. Lastly, Freud's theory includes five psychosexual stages, whereas Erikson's theory includes eight psychosocial stages.