I am a non-native researcher in the field of education. I want to write the following message in one of my academic reports, but I think it looks slightly casual. Could you please suggest to me a better substitute for the bolded sentence?
As is already known, student participation in these online classes is optional. Therefore, student participation in these classes is good news for schools. However, this report shows that this participation alone does not imply better student engagement in class.
Thank you so much in advance for your valuable comments and answers.