This paper describes the Harris-Jacobson Readability Formula A, a revision of a readability formula based on word lists from "Basic Elementary Reading Vocabularies." Section one of the paper discusses procedures for using the formula, including the selection of samples, scoring the variables, and applying the formula. The next section…

This document discusses the measurement of reading ability and the readability of books by application of the Lexile framework. It begins by stating the importance of uniform measures. It then discusses the history of reading ability testing, based on the assumption that no researcher has been able to measure more than one kind of reading ability.…

"Lasbarhetsindex" ("Lix") is a readability formula developed in Sweden that holds promise for assessing text difficulty in other languages, including English. So far three separate studies have been conducted to test Lix with French and English texts, with German and English texts, and with Greek and English texts. In all three…

Readability estimates are usually based on measures of word difficulty and measures of sentence difficulty. Word difficulty is measured in two ways: by the structural size and complexity of words or by reference to phonomena of language use, such as word-list frequency or the regularity of spelling patterns. Sentence difficulty is measured only in…

A number of reading specialists are finding themselves testifying in court or writing expert opinions for court cases in such diverse areas as civil rights, criminal law, contracts, warranties, and due process. The validity of readability formulas was tested in the case of David v. Heckler. Another case involved a group of Florida prisoners who…

The Flesch readability index yields meaningful information about the responses of readers to texts. Because the formula is so simple, a group of English teachers wrote a program in BASIC that would count some obvious surface features of a text and calculate Flesch scores. Among the programing problems encountered were counting words (taking into…

Readability formulas have varied uses. In education they are used to match children's reading ability to the difficulty level of material, select stories and books for classroom use and for individual students' particular needs, select textbooks and other reading materials, aid educational research, and check reading materials of newly literate…

The purpose of this paper is to make classroom teachers on all educational levels aware of the limitations of readability formulas and the factors affecting readability that are not accounted for by the readability formulas. delineated in discussions of readability formula assumptions, problems, and limitations. Some of the specific factors that…