What statistical method is good for my research?

My research topic is Anxiety Disorders among University students. My objectives are;
•To identify the prevalence of anxiety disorders among university student.
•To find out various factors affecting the student’s anxiety.
•To identify the differences in the prevalence of anxiety level between male and female
I am going to use a questioner for this and my sample is 200
Asked Jun 15, 2014

TIP: If it's not your answer to this question, please click "Leave a Comment" button under the question to communicate with the question owner.