The manual is intended to help writers or adapters of instructional materials for deaf students. The first section examines difficulties in providing suitable reading material for deaf students. The problems in evaluating deaf students' reading levels are examined. Writers are cautioned to pay particular attention to syntax, vocabulary, and…

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…

Estimating readability requires more than a formula comparing word length and sentence length. Other factors to be considered include vocabulary, the relationship between syntax and readability, the syntax used in children's oral language, and writing style. Steps are outlined for systematically estimating readability of instructional materials…

Raises doubts about the validity of readability formulas. (RB)

Describes research conducted in France on text readability and suggests that readability formulas give high scores to redundant texts that have no great interest and penalize texts with original information. Argues that a coefficient should be incorporated into readability formulas that reflects the nature of the text. (MKM)