Single administration (beta-binomial) estimates for the raw agreement index p and the corrected-for-chance kappa index in mastery testing are compared with those based on two test administrations in terms of estimation bias and sampling variability. Bias is about 2.5 percent for p and 10 percent for kappa. (Author/RL)

To determine the most accurate group-administered measure of reading achievement, a study explored variations of the cloze and maze procedures with second grade students who were native English speakers or who were being taught English as a second language. Subjects--108 second grade volunteers (1% American Indian, 49% Asian, 39.8% Black, 1%…