Hi Harriet:
Each institution and teacher has to decide where they stand with EC. I don't allow it. My reasons are it's subjective, students perceive it as unfair, and it contributes to grade inflation.
When I once gave EC to a student and was accused of showing faroritism, I decided anything graded will be listed in the syllabus at the beginning of class and I will stick to it.
My experience and opinion.
Regards, Barry
