AP English Language

Consider the following body paragraph from an argumentative essay:

"A prime example of technology's impact on education is the integration of online learning platforms, such as Coursera and Khan Academy. These platforms provide free, accessible education to anyone with an internet connection, which increases the opportunity for lifelong learning. In fact, a study by the Bill & Melinda Gates Foundation found that students who engaged with online learning programs scored higher on standardized tests compared to those in traditional classroom settings."

What is the function of the study by the Bill & Melinda Gates Foundation mentioned in the paragraph?