Yes, we certainly can.
In fact, a recent study* showed students who used our service had a 26% higher average GPA than those who did not.
It also showed that students who sought assistance through Studiosity more than 5 times had 1 Grade Point higher average GPAs than those who sought assistance only once.
Lynch, A. (2017, March 29). The JCU Trial of YourTutor. Data presented at Universities UK Innovation and excellence in teaching and learning conference, London. Available here.
Note: As of August 31 2017, YourTutor is now known as Studiosity. It's the same great service, just with a new name.