Features are discussed that are critical to the comprehension of texts and that readability formulas cannot handle. The critique and alternative analyses are confined to public and institutional documents and are based on research in cognitive psychology and psycholinguistics. Two types of comprehensibility complications are examined, those…

A study examined the match between the vocabularies of children of different ethnic and socioeconomic status groups and the school vocabulary revealed by readability formulas and word lists. The Spache 1040 and the Dale 769 readability formula word lists were used as indicators of school vocabulary in the early primary grades, and a corpus of talk…