Dawber, Teresa, W. Todd Rogers, and Michael Carbonaro. “Robustness of Lord’s Formulas for Item Difficulty and Discrimination Conversions Between Classical and Item Response Theory Models”. Alberta Journal of Educational Research 55, no. 4 (May 20, 2010). Accessed January 18, 2025. https://dev.journalhosting.ucalgary.ca/index.php/ajer/article/view/55343.