Morgan, G.B., Hodge, K.J., Trepinksi, T.M. and Anderson, L.W. 2014. The Stability of Teacher Performance and Effectiveness: Implications for Policies Concerning Teacher Evaluation. Education Policy Analysis Archives. 22, (Oct. 2014), 95. DOI:https://doi.org/10.14507/epaa.v22n95.2014.