No. They are NOT comingled that way-- it's a full section, a discrete section, so the student knows full well that the experimental section was "math" for example (because there should be two, but there were three on the test s/he took), but the questions are indistinguishable in every other respect.

So the student has every incentive to do his/her best on the entire section either way-- because they have no real way of knowing whether or not section 2 is the experimental one, or if it was section 6 instead, if you see what I mean.



Schrödinger's cat walks into a bar. And doesn't.