This is an involved application assignment. The goal is for you to see how thing relate to each other. ( yes they DO relate!)
I want you to watch the following videos. Then I want you to compare and contrast the videos. What is similar about each theory or idea? What seems to explain something else? How are they different? How do they relate to each other? This will take some explanation
Freud overview of all stages ( you can stop at the end of the Anal stage approx 5:51) https://www.youtube.com/watch?v=e_qVDVFpdto
Harlow and his monkeys looking at contact comfort https://www.youtube.com/watch?v=OrNBEhzjg8I
Bowlby and attachment theory https://www.youtube.com/watch?v=3LM0nE81mIE
Mary Ainsworth and Strange Situation https://www.youtube.com/watch?v=m_6rQk7jlrc