If you erase incompletely, does the machine recognize the change?

[Inessa]

Hey all,
I made some erasures during the exam, but could not erase perfectly(the bubble sheet was colored!). If a very very light spot is left, do u feel the scantron machine will recognize that its not the intended answer?
Thanks for help, and congrats on being done. 🙂

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[Broccoli]

i think you're fine, the other bubble will seem a lot darker so I think that's the one the machine will read.

 

[ADeadLois]

I'm pretty sure they use optical scanners, not the Scantron machines we're used to from high school. The technology is better, so incomplete erasures are less likely to be a problem.

 

[MitJ]

I'm pretty sure they use optical scanners, not the Scantron machines we're used to from high school. The technology is better, so incomplete erasures are less likely to be a problem.

ADeadLois is absolutely right. At the beginning they announced that optical scanning machines would be used to mark the multiple choice papers.

 

[Creightonite]

What if you were to fill in two answer choices one of which just happened to be correct? would machine score that as incorrect?

 

[ADeadLois]

What if you were to fill in two answer choices one of which just happened to be correct? would machine score that as incorrect?

It would be marked incorrect, yes.

 

[87138]

There were a few questions that on my answer sheet I wrote my "second choice" answer (should I have enough time to come back and re-think a question I was kinda 50/50 on) lightly in pencil to the right of the four ovals. Like if I thought it was probably A but could very well be C, I filled in A, but then lightly wrote a "C" to the right of the "D" oval (not in any of the ovals). I did that for only maybe 2 or 3 questions, but hopefully that kind of thing doesn't mess with the optical scanner. I doubt it would. I forgot to erase them (well, didn't have time).