About Q1.6
data collected by web questionnaires is one-off, inaccurate, biased and too expensive. by posing questions in a non-intrusive way at multiple moments throughout the day on the smart ... Read more
data collected by web questionnaires is one-off, inaccurate, biased and too expensive. by posing questions in a non-intrusive way at multiple moments throughout the day on the smart ... Read more