statistical-validity
The requirement for large, representative data samples to ensure reliable and meaningful statistical conclusions, which is often lacking in WMDs.
1 chapter across 1 book
Weapons of Math Destruction (2016)Cathy O'Neil
Chapter 9 of Weapons of Math Destruction examines the use of mathematical models in evaluating teacher performance, specifically focusing on the Washington, D.C. school district's value-added model (VAM) implemented through the IMPACT evaluation system. The chapter highlights the complexity and opacity of these models, their reliance on limited data, and their failure to incorporate meaningful feedback, resulting in unfair and destructive outcomes such as the dismissal of effective teachers based on flawed algorithmic scores. This example illustrates the broader dangers of WMDs, which perpetuate bias and punish individuals without accountability or transparency.