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Anon takes an exam (sh.itjust.works)
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[-] argon@lemmy.today 1 points 1 week ago

A class of 200 students performing much worse than the last class is very unlikely. 200 Students is enough to make even small differences statistically significant.

A single test being much harder than the last test is much more likely, since it isn't an averahe of 200, it's a single datapoint.

That's why if this semester's class performed much worse than last semester's, you can assume it's because of the test, not the students.

Or more likely, instruction was lacking and didn't cover the material on the test properly.

this post was submitted on 03 Apr 2025
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