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Filters: Author is Ackerman, T. A.  [Clear All Filters]
1987
Ackerman, T. A. (1987). The use of unidimensional item parameter estimates of multidimensional items in adaptive testing (No. 87-13). ACT Research Reports (p. 33). presented at the September, 1987, Iowa City, IA: ACT.
1999
Walker, C. M., & Ackerman, T. A.. (1999). An examination of conditioning variables in DIF analysis in a computer adaptive testing environment. In Paper presented at the annual meeting of the National Council on Measurement in Education. Montreal, Canada.