This matters: not only do we want accurate information, but polls can influence opinion as well as reflect it. A poll with the same margin of error in Thailand (assuming an adult population of 50 million) requires a random sample of 1,067 people. Anyone can use these four tests to see whether a poll is worth listening to. This gives us the information to decide whether to take this poll seriously. By conducting and reporting opinion polls accurately, pollsters and journalists alike can help us better understand what people think.

Source: Bangkok Post July 30, 2017 21:56 UTC