Export 5 results:
Filters: Author is Ackerman, T. A.  [Clear All Filters]
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.
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.