An examinee is required to express his confidence in the correctness of each choice of a multiple-choice item in a probabilistic test. For the responses to be valid indicators the confidence expressed in each choice should be determined by an examinees' knowledge. This study assessed the relationship of the certainty of examinees' responses to…

The admissable probability measurement (APM) format was used to score a criterion referenced language arts test administered in an inner city junior high school. Its 30 items covered capitalization, punctuation, parts of speech, and sentence analysis. With APM, students indicate their confidence in their answer choice, and guessing is heavily…