Merits and demerits of telephonic survey?

Blair Abdi: cons:you only really get about 20% of the people actually answering the questionspeople hang up on youthe money and training spent, in terms of people being trained to take the surveys and compute the datanot everyone has a landline phone, like a lot of people only have cell phones now.prosa lot of people wont hang up because they feel guilty about hanging up, so theyll answer the questioneasynot as expensive as other forms of primary data collection...Show more