But take it to the bank...the Apple Haters (the ones who appear on these threads to insult Apple product users) and the room temperature IQ crowd would certainly believe this is a legitimate survey.
I just have been experimenting with their "interactive" data. . . and IT is cool. You can play with the data to find out what every sector of the data means. Apparently I was wrong about this being self-selected survey, but it is much more accurate than that. What IS wrong about it is the conclusions drawn by the author of the news article. Apparently the author forgot to clear his filters as he went along.
For example his claim of only "3% in the Far West" Is totally wrong. . . with all filters cleared except "Far West" the figure is 7.4% who plan on buying an Apple Watch. I could not believe his original "Far West" claim, it was so far off reality. Similarly, the ethnicity figures seem warped by other filters being left selected. i could not duplicate his percentages. Now it makes me question how many of his other conclusions are based on carelessly not clearing the filters before making his other conclusions?
Still, it's fun to play with the data. it's rapid and interesting.