An empirical item characteristic curve shows the probability of a correct response as a function of the student's total test score. These curves can be estimated from large-scale pretest data. They enable test developers to select items that discriminate well in the score region where decisions are made. A similar set of curves can be used to…

A technical advisory committee assisted the Alabama State Department of Education in establishing passing scores and equating test forms of the Alabama High School Graduation Examination (AHSGE). The committee examined four methods of setting cutting scores: (1) Jensen's theoretical method--probability theory is used to set standards that are…