BEARD, J. G.; RICHARDS, L.; FISHER, T. The Estimation of Scaled Scores and their Frequency Distributions from Item Bank Difficulty Values. Florida Journal of Educational Research, [S. l.], v. 25, n. 1, p. 33–44, 1983. Disponível em: https://journals.flvc.org/fjer/article/view/133746. Acesso em: 20 apr. 2024.