IIRC the accuracy rate was on-par or better than traditional survey methods. **
As always how you ask the question matters a large amount too.
http://www.google.com/insights/consumersurveys/static/consumer_surveys_whitepaper_v2.pdf
Paul Lindner, Jun 06 2013 on 1500wordmtu.com
IIRC the accuracy rate was on-par or better than traditional survey methods. **
As always how you ask the question matters a large amount too.
http://
Paul Lindner, Jun 06 2013 on 1500wordmtu.com