Validity’s likely irrelevance in personnel processes
My colleague Audrey Amrein-Beardsley is starting a series of blog entries glossing the March special issue of Educational Researcher devoted to value-added or growth measures, specifically the technical qualities vis-a-vis teacher evaluations. In her first entry on the issue today, she argues the following: [Quoting Doug Harris and Carolyn Herrington:] “The issue is not whether value-added measures are valid but […]