Why might cramming the night befor cause a problem when taking exams?

3 answers

Trust me, you don't remember everything becasue it goes in ya brain, and then the next peice of info pushes it out.
cramming is working on the area of knowing, but not understanding. We learn understanding by repetition spaced over time. We learn knowing from memory by cramming, not spaced over time.
I agree. You need to read and re-read the material sometimes before fully understanding the "big picture".

I used to cram when I was younger and it only got me C's and sometimes the unthinkable...yikes!