1. Can Teacher Effect Scores change dramatically from year to year?
TVAAS
2014
Source: Education Week-Online Article dated Oct 8, 2014
Link:
Title: "Evaluating Teacher Evaluation"
Author: Linda Darling-Hammond et al
Note: This excerpt may or may not specifically referring to EVAAS, but it is definitely referring to VAMs in general.

2. Can Teacher Effect Scores change dramatically from year to year?
TVAAS
2014
Source: Education Week-Online Article dated Oct 8, 2014
Link:
Title: "Evaluating Teacher Evaluation"
Author: Linda Darling-Hammond et al
Note: This excerpt may or may not specifically referring to EVAAS, but it is definitely referring to VAMs in general.