Expanding the final example: say I currently give 20 students As, 15 of them score me at 1.05, 5 of them are so happy to get As they score me at 1.65. I give my 80 other students Fs, and they score me at 1.0. Then on average my A students will score me at 1.2, and my F students will score me at 1.0, and my score for the whole class will be 1.04. But suppose I were to give 10 more F students As, and they would also be so happy that they'd also score me at 1.65. By doing so, I'd increase my average score from 1.04 to 1.105---for all we've been told, that may be several standard deviations across other teachers, and may translate to substantially higher salary and job security for me.
Comments
Expanding the final example: say I currently give 20 students As, 15 of them score me at 1.05, 5 of them are so happy to get As they score me at 1.65. I give my 80 other students Fs, and they score me at 1.0. Then on average my A students will score me at 1.2, and my F students will score me at 1.0, and my score for the whole class will be 1.04. But suppose I were to give 10 more F students As, and they would also be so happy that they'd also score me at 1.65. By doing so, I'd increase my average score from 1.04 to 1.105---for all we've been told, that may be several standard deviations across other teachers, and may translate to substantially higher salary and job security for me.