"Writeability" is concerned with helping writers and editors produce materials on easier readability levels. A major input of most readability formulas is vocabulary difficulty. One way to increase readability is to use simple vocabulary or shorter words since word frequency studies show that more common words are shorter. The other…

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…

It is argued that informed judgments by a thoughtful teacher may have advantages over the application of a readability formula in assessing the linguistic difficulty of a text. Examples are given. (KC)