Citation
Vaughn, S., Wanzek, J., Wexler, J., Barth, A., Cirino, P. T., Fletcher, J.M., Romain, M.A., Denton, C.A., Roberts, G., & Francis, D. J. (2010). The relative effects of group size on Reading progress of older students with reading difficulties. Reading and Writing: An Interdisciplinary Journal 23(8), 931-956. PMCID: PMC2975110