Hi Julie:
I am all for enhanced learning. I'm one who does not favor grade inflation. Extra credit can do that. It can be subjective, viewed as unfair by good and lesser performing students, difficult to grade fairly or consistently, and if it's not available to all, then it can be argued there is favoritism (although I know that's not the intent). But these are the reactions and negative experiences I've encountered. Therefore, I just don't give it.
I feel if it's important to know, and to grade, then it should be a part of the class and stated so… >>>