How do American Grad Schools calculate GPA?

[daniellemree]

Hey!

I'm a Canadian student looking at applying to American graduate programs for school psychology. In Canada, pretty much all grad schools calculate your GPA based on your last 60 credits. I was wondering if American grad schools were that way as well? Only a few websites specify and all the ones I've seen say that they do but I guess I was wondering if that was the standard. 

Thanks in advance!