Lynne Beazlie Brock Sabornie, E. J., Cullinan, D., Osborne, S. S., & Brock, L. B. (2005). Intellectual, academic, and behavioural functioning of students with high-incidence disabilities: A cross-categorical meta-analysis. EXCEPTIONAL CHILDREN, 72(1), 47–63. https://doi.org/10.1177/001440290507200103