Several competing computational techniques for dealing with sampling zeros were evaluated when estimating the two-point mixture model index, π* , in contingency tables under an independence assumption. Also, the performance of the estimate and associated standard errors were studied under various combinations of conditions.
Pan, Xuemei and Dayton, C. Mitchell
"Factors Influencing the Mixture Index of Model Fit in Contingency Tables Showing Independence,"
Journal of Modern Applied Statistical Methods: Vol. 10
, Article 16.
Available at: http://digitalcommons.wayne.edu/jmasm/vol10/iss1/16