Is the System Solid? Assessing the Validity, Reliability, and Bias of Teacher Evaluation Measures
*Names in bold indicate Presenter
We examined 2014-15 teacher observation data from Colorado schools. To assess the construct validity and reliability of the teacher evaluation observation rubric, exploratory and confirmatory factor analysis were employed. Internal consistency estimates were assessed using Cronbach’s alpha. Three-level random effects ANOVA models were used to generate empirical Bayes estimates of the intercepts of individual teacher observers. Additionally, multiple linear regression models were used to identify predictors impacting teacher effectiveness scores provided by observers identified as reporting extremely high or low teacher ratings.