+42 On Scantrons, you're instructed to bubble in completely, suggesting that the machine can't read incorrectly filled bubbles, but you're also instructed to erase completely, suggesting that the machine actually can read incorrectly filled bubbles. amirite?

by Kirstin36 1 week ago

Partially filled or erased bubbles are like hanging chads in a voting machine.

by Anonymous 1 week ago

Me when my bubble is only partially filled or erased

by Anonymous 1 week ago

On scantrons, we were told to do anything possible to limit errors because that would involve people doing things and we like it when we can sit and have results delivered to us with no further effort.

by Anonymous 1 week ago

That's all just to be completely sure.

by Auersalma 1 week ago

Yeah OP it's to reduce the "error rate"

by abagail76 1 week ago

It can, but it might not, so they tell us to be completely sure.

by Anonymous 1 week ago

If a bubble is partially filled the machine might get a false positive or a false negative, if it's completely full or empty you reduce the chance of errors.

by Watsicairving 1 week ago

Those suggestions are not for the the machines, they're for the grade grubbers after the exams are turned in "But I meant to choose C!?"

by Anonymous 1 week ago

Who has access to a Scantron? Fill in a Scantron test where question 1 is 1% shaded, question 2 is 2% shaded, and so on to question 100 being 100% shaded. Then grade the test and publish your results. Likewise, fill in a 100 question test with all bubbles fully shaded. Then erase the bubbles so Q1 is 1% erased, Q2 is 2% erased, yadda yadda yadda, publish the results.

by Otherwise_Narwhal 1 week ago

Obviously you're just an ideas guy

by Anonymous 1 week ago

Id hang out with you.

by Anonymous 1 week ago

Wait, is that 100% of the bubble 1% shaded or 1% of the bubble 100% shaded?

by alekwillms 1 week ago

Yes

by jamar40 1 week ago

I actually did the same thing.

by Anonymous 1 week ago

They say our enemy is weak and strong at the same time

by Anonymous 1 week ago

My biggest problem with Scantrons or any other bubble-in form is that the pencil mark is so shiny that I can't tell what's the shine and what's the paper.

by Anonymous 1 week ago

Biden's hometown

by Anonymous 1 week ago

Or maybe there's an error and correctly filling/ erasing lowers the error.

by Anonymous 1 week ago

Do people still use scantrons?

by No-Adhesiveness6750 1 week ago

I just circle them so there is no ambiguity.

by Anonymous 1 week ago

An a European (I assume this is a US thing, cause I only heard of it related to, I think, standardised tests in the US), what the hell is a scantron and why does shading matter?

by Anonymous 1 week ago

Students shade in the letter that they think is correct on a bubble sheet. You then just scan the bubble sheets and upload them to grade automatically online. If someone answers B but changes it to the correct answer E, the computer still might mark it as incorrect or as an error. Photo of sheet

by schowalteremmie 1 week ago