I need help with methods paper

I need help with the discriptions of variables portion of a case study.  Wecare doing a random sampling semi structured questionaire.

The questions for our interviews are:

!. How do you feel with your pain medication?

2. How long have you been taking your pain medication?

3. Would you call yourself an addict?

4.Are you able to take your pain medication only when needed or is it more a daily routine.

5. If you miss a dose, how do you respond? Can you tell the difference when you miss a dose?



The variables are 

Control: Patients taking the same medications

 dependent variable is the person’s OA

 independent would be the questions 


==If I am wrong on the variables please feel free to change them==