Is this a comma splice?

Question:

Is this a comma splice?

Thank you for your help...

This proposal also intends to encourage students?? participation and to achieve some benefits that are the result of collaborative work in classrooms, for instance, to improve attendance because of their commitment to others in their group

Best Answer - Chosen by Asker:

No, it's not. Try putting a dash after "classrooms." I think that would help. :)