Investigates whether readability is a key criterion for college and university professors in selecting textbooks. Finds that many selected textbooks are at too high a level for the students. Suggests that students have a difficult time learning when the text is even slightly above their level. (PRA)

A new approach to measuring readability is proposed based on the analysis of texts as causally connected chains of actions, physical states, and mental states. Using the inference load formula reflecting the difficulty readers have in inferring causal connections, the difficulty of texts can be adjusted for readers differing in skill or knowledge.…

The Fry Graph for Estimating Readability (Extended) and George Magginnis' formula for passages shorter than 100 words were used in an investigation of the reading levels of 18 mathematics textbooks produced for grades one through six by three major publishers. The results indicated that the readability levels of the textbooks were inaccurate. Few…

Writing, editing, and printing texts for schools has been the accepted role of publishers, while text researchers have concentrated on typography, content, and readability. The hundreds of readability formulas now available make readability the most sophisticated of these three areas. Research in reading comprehension suggests that publishers…

Designed to appeal to students who want a short but up-to-date overview, researchers who are interested in a critical appraisal, and consumers who would like to know what leaders in the field think, this collection of articles highlights the changes that have occurred in readability research from the past to the present and makes predictions about…