Seminar Details

Seminar Details


Jun 8

3:00 pm

Recovery of Item Rankings Under Nonnormal Fitting Distributions in MML Parameter Estimation

David Dailey (MS Thesis Presentation)


University of Washington - Department of Statistics

In a simulation study, data are generated under a variety of
conditions with respect to underlying ability distribution, test
length, and sample size. Item parameter estimates are obtained
under two conditions: in one, the assumed ability distribution
matches the underlying ability distribution; in the other, it does
not. The item parameter estimates from the matching condition are
compared to those from the nonmatching condition to determine the
effect on the recovery of parameter estimates and item rankings.