Without a random sample, aren’t TrueDelta’s results biased?
Tuesday, February 27th, 2007
TrueDelta doesn’t gather its data from a random sample of vehicle owners. Worse, many people join TrueDelta after reading about it on a forum, and many people only visit automotive forums when they have a problem with their car. For these two reasons, I’m often asked “Don’t you think your research is going to be very biased?.
The short answer: no
Maybe you were hoping for a lengthier answer? Then you’ve come to the right place.