How Can You Weed out Inattentive or Dishonest Respondents—without Annoying or Excluding Sincere Ones?
Most surveys use some form of quality control questions to flag inattentive or dishonest participants. But how many is the right number to use? How can you tell the difference between a “bad” respondent—and one who simply misread a question?
How can you reach even the rarest populations and Hardest-to-find segments–with the highest efficiency and lowest cost?