IAD Summer applicants have rated the interview process at Dimensional Fund Advisors with 3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 62.7% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
I applied online. I interviewed at Dimensional Fund Advisors
Interview
Things are all about your resume. Focus on your resume first, and try to ask some questions they are actually interested. Also do not forget to search their company's philosophies and academic researches.