Standardized measures are often used as an index of students' reading comprehension and scores have important implications, particularly for students who perform below expectations. This study examined secondary-level students' patterns of responding and the prevalence and impact of non-attempted items on a timed, group-administered,…

The Kuder Richardson-20 Formula is shown to be a special case, where each examinee is given sufficient time to answer each item, of a more general formula where each examinee may not be allowed the necessary time. The formula is extended to allow two scores, knowledge and speed, to be extracted from each examinees test score. Using a sample of 82…