> “I’m a strong, strong opponent of what Harvard is doing to say that only a fraction of students can earn A’s,” Garcia said. “I think you should have clear standards for what an A means, and then give tons of opportunity for people … to get to that A bar without lowering the standard. So everybody who’s curving is hiding that effect. It’s completely hiding that effect, and it’s pretending as if nothing’s wrong, and something is definitely wrong.”
Grade curves are how you test your curriculum for good challenge - are you challenging people such that an A isn't a too-low threshold. When you force people into a curve, you haven't defined a threshold of mastery, you've defined a sorting function: A means "better than this year's peers". It is absolutely bananas to me that a tech/math oriented school would be doing any sort of curving.
I think curving has its place. One of my math professors explained that in his opinion an effective test should differentiate performance as much as possible. The top students should score very well and the bottom students should score very poorly. If all the scores are clustered near the top (>80% for example) then it's hard to tell who really mastered the material and who just muddled through. Then, once you've sorted the students you can apply an appropriate curve. He did not have pre-defined thresholds, for each exam he would evaluate when he felt like the quality of work changed from an A to an A-, A- to B+ etc. The curves were very fair; he wasn't trying to force some number of As Bs or Fs, but it did increase my stress levels not knowing in advance how well I needed to do on each exam
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But when there is no standard and students are subject to tests created by and graded by egotistical narcissists, a curve can be the only way anyone passes the course at all. It simply wouldn’t be acceptable for 5 of 50 students to pass because professor egghead can’t write coherent question on a test.
I had classes where I didn’t make over a 50% on any test and still got an A because half the class dropped and the other half hung on for the curve like I did.
I think curves are more a result of poor teachers than anything.
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