Procedures based on latent trait models and the Rasch model are described for computation and asymptotic statistical inference for two decision consistency indexes often used in mastery or competence testing. Simulations were conducted for typical mastery testing situations to illustrate the procedures. (SLD)

California's Pupil Proficiency Law requires each local school district to adopt standards of proficiency in the basic skills of reading comprehension, writing, and computation. Students are to be assessed in grades 4-11. Students not making sufficient progress towards meeting the district's standards are to be provided with remedial programs, and…