I am collecting data for my dissertation on PhD students and their relationship with advisor. Please complete the survey below. By doing so, you can enter to win 1 of 5 $100 Amazon gift cards. I appreciate your assistance. The NO-LOGIN LINK is:
http://www.mindgarden.com/survey/12176

I tried to do your survey, your questions don't take account of the fact that not everyone is doing their PhD in the US. In Europe, and in the UK in particular PhD students don't attend classes. Your questionnaire design therefore limits you to the US - I suggest that you make this clear in your request for help,