Amrein-Beardsley, A., Collins, C., Polasky, S.A. and Sloat, E.F. 2013. Value-Added Model (VAM) Research for Educational Policy: Framing the Issue. Education Policy Analysis Archives. 21, (Jan. 2013), 4. DOI:https://doi.org/10.14507/epaa.v21n4.2013.