I need help from nurses who have done research on medication errors!!

I am a nursing student and I have an assignment to send out a query to any nurses that have done research on medication errors. If you have will you please answer these few questions for me? I would GREATLY appreciate it.

My research question I have made up is: What are the most common causes/reasons for medications errors in the hospital setting ?

The questions for you are:

What kind of research are you conducting?

Is the research qualitative or quantitative?

Do you use a nursing theory as a foundation for your research?

I would really appreciate any help. And as many people as possible can answer. THANKS AGAIN!! Beth