Re:What happens when patients find out how good their doctor...
by dredmorbius on Wednesday December 06, 2017 @10:05AM
(#15861512)
Teacher-based metrics in schools turn out to have extreme variance.
In cases where the same teacher was subject to multiple assessments (there's a Math Nerd writing for Bloomberg who presented this, I think at TED), there was no correlation between the multiple measurements.
Straight-up noise.
Cathy O'Neil, "MathBabe", "Algorithms are Opinions in Code".
In cases where the same teacher was subject to multiple assessments (there's a Math Nerd writing for Bloomberg who presented this, I think at TED), there was no correlation between the multiple measurements.
Straight-up noise.
Cathy O'Neil, "MathBabe", "Algorithms are Opinions in Code".
Starting at 2m22s here: https://www.youtube.com/watch?v=_2u_eHHzRto