Completed. I'm also quite interested in the results!
Originally Posted by
photojojo
Non-mandatory questions can be skipped and it's tabulated as a skip or "none" on our side. We did it that way to try to speed up the time it took so people didn't need to go find "none" or 0.
As someone in the research world, I'm just going to throw out there that skipping a question and answering "none" are usually two different participant responses. This will probably come up when you take that market research class next term.
Q 13 is still forcing a response but did accept the non-numeric "-" so a heads up to recode the string to a missing value.
Also, Q 17 & 18, you're missing a word: "...in order
to fly one of the airlines..."
And with your income question I highly recommend in future surveys that you specify whether you want individual or household.