. . . .There’s no polite way to say this: The procedures described in the DCPS IMPACT Guidebook for producing a value-added score are idiotic. These procedures warrant this harsh characterization because they make a preposterous assumption based on a misunderstanding of the properties of the DC Comprehensive Assessment System (DC CAS). . . . .Do read on.
"A child's learning is the function more of the characteristics of his classmates than those of the teacher." James Coleman, 1972
. . .a pupil attitude factor, which appears to have a stronger relationship to achievement than do all the “school” factors together, is the extent to which an individual feels that he has some control over his own destiny. James Coleman, 1966
Wednesday, July 28, 2010
Michelle Rhee's Teacher Evaluation System Deemed "Idiotic"
From Aaron Pallas, posting at Valerie Strauss's blog at WaPo: