Discusses the definition of readability, the history of readability formulas, writing adult materials to a desired readability level, matching readability levels of material to the reader's skill level, and uses of these concepts in adult education. (CT)

Discussion of the notion of readability focuses on predicting readability with computerized readability formulas. Semantic and syntactic factors are discussed, the development of readability formulas is described, and five commercially available computer readability formulas are reviewed, including the Readability Estimator, Readability Formulas,…