Questions on sarah walking across parking lot, spotlight effect, group behavior

Question 1- watch this video http://www.youtube.com/watch?v=fCVlI-_4GZQ After viewing the video – what type of circumstances brought forth the highest level of obedience? Why? Post your ideas on whether the research conducted was reliable and valid. Question 2 -Sarah was walking across a parking lot, when she tripped and fell, hurting her knee. Would a social psychologist, think it would be more likely that Sarah would receive help while in Manhattan, New York or while walking in a town in rural Wyoming? (Input your ideas taking the perspective of a modern day social psychologist. Incorporate as many of the concepts from the first two chapters of this week’s reading to support your ideas. Provide any additional research you might conduct to respond.) Question 3- What is the spotlight effect? This article appears to explain our inability to really understand how we appear in the eyes of other people. Would you agree? Anyone?