951
The state of things (i.imgur.com)
you are viewing a single comment's thread
view the rest of the comments
[-] JackGreenEarth@lemm.ee 3 points 6 months ago

An education system that always fails a set number of people, regarless of how well people do, is a bad system, however.

[-] Nougat@fedia.io 59 points 6 months ago

There will always be 25% in the bottom quartile, regardless of how well any students perform.

[-] poplargrove@lemmy.world 13 points 6 months ago

I think their point is that you could have people in the bottom quartile who learned what they are expected to, are capable, but are failed anyway because of how they compare to others.

(Assuming curved tests really work like that, never bothered reading the pretty long grading policies)

[-] Nougat@fedia.io 31 points 6 months ago

Nothing about the post says anything about how many students passed or failed. Just that the lowest 25% are the lowest 25%.

Yes, A = A.

[-] Seraph@kbin.social 4 points 6 months ago

Oh... you didn't post this as a joke? This is depressing.

[-] poplargrove@lemmy.world 2 points 6 months ago* (last edited 6 months ago)

I did post it as a joke. Note how I started my comment with "I think their point is", that isn't my view :)

There's also difference between pretending to miss for a joke that dividing things into quartiles necessarily means a bottom 25% exists (what the meme does). And noting that it's weird failing people based on how they do compared to others and not if they actually actually learn (me suggesting what the user JackGreenEarth was probably trying to get at).

[-] InquisitiveApathy@lemm.ee 23 points 6 months ago* (last edited 6 months ago)

As Nougat said, this has nothing to do with passing or failing and is just a consequence of measuring performance. If 100 people take a test and the lowest 25 scorers all have a 95 out of 100 points then they are still in the bottom quartile regardless of the fact that every single student passed with flying colors.

Showing a bell curve with no context means nothing.

[-] PrinceWith999Enemies@lemmy.world 13 points 6 months ago* (last edited 6 months ago)

I’ve been graded on a curve, and I’ve done it myself a couple of times. IMO, it’s usually a sign of a bad class (too much material being crammed in) or a bad teacher (didn’t get the concepts across to the majority of the students).

That said, it’s usually done when it’s needed to prevent a significant portion of the class from failing. I remember a chem exam I took where a 16/100 was a C.

The basic idea is that grades are normally distributed (ie a bell curve) which allows you to find the average grade range and shift the letter grade (eg a C or C+). There’s some professors who take the idea too far and rather than working off of an actual normal distribution try to fit the procedure to a simply skewed distribution or use it to pull down an 85/100 to a C, but in my experience that’s the exception to the rule, especially in math/science courses.

Also, iirc this is a parody account.

[-] scoobford@lemmy.zip 3 points 6 months ago

I agree. My calc I professor would just silently scribble equations on the board, then turn around, gesture wildly, and shout "You see".

I remember right before the drop date, I had a 34 in the class, and he took time out of class to beg us to study because if too many people failed, he might have consequences.

The only grade left was the final. I did much worse on it than the rest of the course, but my course grade shot up to the low 70s. Sure enough, I had the like 4th highest grade in the class.

[-] Nougat@fedia.io 2 points 6 months ago

I don't believe that standardized tests are ever ghraded on a curve.

[-] PrinceWith999Enemies@lemmy.world 1 points 6 months ago

You’re right, but it depends on how you want to think about it. They’re not necessarily graded on a curve, but with standardized tests you usually have both a history and a design target. They’re intended to produce (for example) a normal curve with a specific mean (eg mean IQ = 100) and they’ll adjust the test year over year to keep within those bounds. In other words, the grades don’t change but the test does.

Curves exist because failing 90% of your class is a really bad look.

[-] Nougat@fedia.io 1 points 6 months ago

Oh I’m not saying standardized tests are perfect by any means. Plenty of flaws.

this post was submitted on 15 May 2024
951 points (98.1% liked)

Microblog Memes

5778 readers
1548 users here now

A place to share screenshots of Microblog posts, whether from Mastodon, tumblr, ~~Twitter~~ X, KBin, Threads or elsewhere.

Created as an evolution of White People Twitter and other tweet-capture subreddits.

Rules:

  1. Please put at least one word relevant to the post in the post title.
  2. Be nice.
  3. No advertising, brand promotion or guerilla marketing.
  4. Posters are encouraged to link to the toot or tweet etc in the description of posts.

Related communities:

founded 1 year ago
MODERATORS