Does a follow up call improve my chances of getting the job?

Yes. If you make the job interview follow up call correctly, you will improve your chances of securing the job. Many job interviewers even wait to make their decisions until they hear from applicants because the follow up call can demonstrate an applicant's enthusiasm for the position and suggest that the applicant is a self-starter. An applicant who doesn't wait to be contacted but is instead proactive also gets another opportunity to give the job interviewer a favorable impression. Remain courteous and to the point and express your interest in the company and the position. You can also tell her that you look forward to hearing from her after she's made her decision.