On the test can we change our answer that we've chosen previously if we have extra time? Or do we have to hit Mark and leave it blank to go back to it? Or can we hit Mark and still select an answer and go back and change it. Or can we not hit Mark and go back and change the answer? Sorry if it's a little confusing, just trying to get it cleared up.

Yea

If you mark an answer in the biology section you can go back to it and change it if you still have time left in the biology section, but you can't go back and change it if you've moved on to a different section (i.e. chemistry, reading comp., etc.)

Marking is just a way for you to know that you're unsure of a question and want to go back and look at it. I don't think answering a question or not matters if you mark it.

ok, so we don't have to mark a question to go back to change a previous answer?

ok, so we don't have to mark a question to go back to change a previous answer?

You don't have to mark it, but if you do mark it you'll know which questions you wanted to go back and take a second look at.

I thought you can go back to all marked questions in the natural science section? Can't you go through all the bio, gchem, and orgo problems then review the marked ones?

Can someone clear this up for me?

I thought you can go back to all marked questions in the natural science section? Can't you go through all the bio, gchem, and orgo problems then review the marked ones?

Can someone clear this up for me?

yes you can as you said.

Yea i've never got this either. Kaplan won't let you go back once you moved beyond the section. TopScore allows you to review everything in the Natural Sciences.

So which one is correct?

Well the sciences--bio, gchem, ochem--are all grouped into one 90 minute block, so you should be able to go back to marked questions in any of the 3 sections.

I took my exam about 3 weeks ago, and if I remember correctly, you can mark anything from Bio, G-chem, and O-chem and when you come to the end of the science section you see a page that allows you to go back to the marked questions from any one of these sections and revise the answer if necessary.