This study investigated the feasibility of the use of the three-parameter item response theory (IRT) model in Florida's minimum competency testing program. The paper includes the following sections: (1) a description of the procedures currently being used by the assessment program, with an emphasis on procedures currently involving the Rasch model; (2) a technical discussion of the differences between the two approaches; (3) a description of commercial and governmental testing programs now using the three parameter approach; (4) a description of the availability and adequacy of computer procedures for implementing the three parameter approach, (5) an analysis of the effect on the procedures currently used by the program if a move to the three-parameter program were made; and (6) a plan for implementing a try-out of the three parameters approach on Florida's assessment program data. (Author/LMO)