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Olson, Arthur V. – 1980
Noting that four of the six most common readability formulas use the McCall-Crabbs Standard Test Lessons in Reading as the independent criterion of difficulty to establish validity, while the other two often site their correlation with the first four to determine validity, a study examined whether these lessons consisted of passage selections…
Descriptors: Elementary Secondary Education, Evaluation Criteria, Librarians, Readability Formulas
