Why Do Voting Opinion Polls Get it Wrong So Often?
Surveys which ask how people intend to vote in major elections seem to get it wrong more often than not, but why is this? Taking the averages of all nine first and then final polls for the UK general election 2017, the predictions for the Conservatives show them down from 46% to 44%; and Labour…
Sampling Techniques in Social Research
Five sampling techniques are random, systematic, stratified, quota, multistage and snowball.