-did the poll ask the right people?
random sample, biased sample
-what is the margin of error?
the margin of error is determined by size of sample (bigger sample, smaller error)
-what was the Questions?
the process of designing survey questions is called instrumentation. Questions that mislead, confuse, or prompt off-topic responses are to be avoided.
-which question came first?
the order of questions in a survey can also affect answers.