This website has information on forms of Human observation to be pretty broad. It doesn't have anything specific with Bolivian villagers or there looms.
http://www.psychologydiscussion.net/behaviour/7-methods-of-studying-human-behaviour/540
Answer: The correct answer is CONCLUSION.
Explanation:
The conclusion of an essay can be summative or evaluative.
Summative conclusion is the one that summarises or restates all the topics discussed.
Evaluative conclusion is the one that provides the reader with the necessary elements to form their opinion as regards the topic discussed.
No you do not. Hope that helps