We were also able to look at their course grades over the course of the year and we saw that when girl students had a female tutor, as opposed to a male tutor, they were about 4 percentage points more likely to earn a C-minus or better in Algebra 1. There was no standardized assessment to look at, so view this as suggestive evidence that their performance and, subsequently, their course grade improved as a result of that exposure to the female math tutor.