How he managed to conduct an opinion poll in the war - torn nation, or what exact course of action was favoured by the population, were deeply unclear, which makes one dubious as to the validity and extent of his claim. (blog.politics.ox.ac.uk)
Exact course content is varied according to the interests of the attendees. (booknetcanada.ca)
As stated earlier, these classes generally last about 8 hours depending on what exact course you are taking, but most classes will cover these topics: (myimprov.com)