social and developmental pyschology

Read the article “Cultural Variation in Infants’ Sleeping Arrangements: Questions of Independence”.  
Provide a written analysis (2-3 pages essay), using the critical thinking to answer the following questions:  

What is the role of culture, if any, on human development based on the information discussed in the article and you personal opinion?
If you were a developmental specialist, what advice would you give to parents about infants’ sleeping arrangements and why.
Bring up questions or ideas that occurred to you that future research studies should investigate and why.