The Toxic Trifecta, Bad Measurement & Evolving Teacher Evaluation Policies
This post contains my preliminary thoughts in development for a forthcoming article dealing with the intersection between statistical and measurement issues in teacher evaluation and teachers’ constitutional rights where those measures are used for making high stakes decisions.
The Toxic Trifecta in Current Legislative Models for Teacher Evaluation
A relatively consistent legislative framework for teacher evaluation has evolved across states in the past few years. Many of the legal concerns that arise do so because of inflexible, arbitrary and often ill-conceived yet standard components of this legislative template. There exist three basic features of the standard model, each of which is problematic on its own regard, and those problems become multiplied when used in combination.
First, the standard evaluation model proposed in legislation requires that objective measures of student achievement growth necessarily be considered in a weighting system of parallel components. Student achievement growth measures are assigned, for example, a 40 or 50% weight alongside observation and other evaluation measures. Placing the measures alongside one another in a weighting scheme assumes all
The Toxic Trifecta in Current Legislative Models for Teacher Evaluation
A relatively consistent legislative framework for teacher evaluation has evolved across states in the past few years. Many of the legal concerns that arise do so because of inflexible, arbitrary and often ill-conceived yet standard components of this legislative template. There exist three basic features of the standard model, each of which is problematic on its own regard, and those problems become multiplied when used in combination.
First, the standard evaluation model proposed in legislation requires that objective measures of student achievement growth necessarily be considered in a weighting system of parallel components. Student achievement growth measures are assigned, for example, a 40 or 50% weight alongside observation and other evaluation measures. Placing the measures alongside one another in a weighting scheme assumes all