Maerlender AC, Masterson CJ, James TD, Beckwith J, Brolinson PG, Crisco J, Duma S, Flashman LA, Greenwald R, Rowson S, Wilcox B, McAllister TW. Test-retest, retest, and retest: Growth curve models of repeat testing with Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT). J Clin Exp Neuropsychol. 2016 10; 38(8):869-74.