I found a problem with the structure of your survey.
If a person has used more than 1 CAM, as most of us here have, the survey does not allow you to give answers for each of them...you allow people to tick more than 1 box in 'which CAM have you used' but the follow up questions are set out as if only 1 box has been ticked.
For instance, I ticked 3 boxes. 2 of the treatments I used were not effective at all, 1 was. How can I give clear information to you in the follow up questions? How do you know which CAM was effective or ineffective?
Sorry for that....we have similar problems here when people create polls!
SJ