Papers about the model Delta

• Martín Andrés, A. and Femia Marzo, P. (2004)
  Delta: a new measure of agreement between two raters.
  British Journal of Mathematical and Statistical Psychology, 57:1, pp. 1-19

• Martín Andrés, A. and Femia Marzo, P. (2005)
  Chance-corrected measures of reliability and validity in KxK tables.
  Statististical Methods in Medical Research, 14, pp. 473-492

• Martín Andrés, A. and Femia Marzo, P. (2008).
  Chance-corrected measures of reliability and validity in 2x2 tables.
  Communications in Statistics-Theory and Methods 37, 760-772.

• Femia Marzo, P.; Martín Andrés, A. y Álvarez Hernández, M. (2012)
  El Modelo Delta para evaluar el grado de acuerdo entre dos observadores.
  Modelización de fenómenos del Medio Ambiente, Salud y Desarrollo Humano, 1(1) 124-145
  García, Bouza & Covarrubias (Eds.), Universidad Autónoma de Guerrero (México)
  (ISBN:978-607-7760-60-3)

• Femia Marzo, P. and Martín Andrés, A. (2014).
  Multiple Choice Tests: Inferences based on estimators of maximum likelihood.
  Open Journal of Statistics 4: 466-483 DOI: 10.4236/ojs.2014.46045

• Martín Andrés, A. and Álvarez Hernández, M. (2021).
  Multi-rater delta: extending the delta nominal measure of agreement between two raters to many raters.
  Journal of Statistical Computation and Simulation 1-21 DOI: 10.4236/ojs.2014.46045

Initial papers on Delta model (previous to the first release of the software Delta)

• Martín Andrés, A. and Luna del Castillo, J.D. (1989)
  Tests and Intervals in Multiple Choice Tests: a Modification of the Simplest Classical Model.
  British Journal of Mathematical and Statistical Psychology 42, 251-263.

• Martín Andrés, A. and Luna del Castillo, J.D. (1990).
  Multiple Choice Tests: Power, length and optimal number of choices per item.
  British Journal of Mathematical and Statistical Psychology 43, 57-71