@article{Dedrick2009,
author = {Dedrick, R.F. and Ferron, J.M. and Hess, M.R. and Hogarty, K.Y. and Kromrey, J.D. and Lang, T.R. and Niles, J.D. and Lee, R.S.},
title= {Multilevel modeling: A review of methodological issues and applications},
year = {2009},
doi = {10.3102/0034654308325581},
journal = {Review of Educational Research},
volume = {79},
number = {1},
pages = {69--102},
}