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…

This article explores the relationships between vocabulary knowledge and text readability. It discusses how procedures used by readability formulas to assess the vocabulary factor can over- or underestimate text difficulty by counting syllables rather than assessing what the reader knows about the words in a text. (Contains references.) (Author/CR)

Undergraduates read a prose passage and were tested on its contents. Difficulty, permission to underline key phrases, and financial motivation were varied. Non-highly motivated subjects performed better on the easy version; underlining aided highly motivated subjects and those reading the difficult version. (Author/RD)

Three passages of fifth-grade readability were read and recalled by 24 high- and low-ability fifth graders and college students. These passages were characterized as either narrative (high degree of temporal linkage), expository (logical linkage and abstract content), or mixed (logical linkage but with content suggestive of a narrative). The…

Three experiments, in which subjects read passages of variable readability, measured "cognitive capacity usage" (the attention level to reading material) by recording by subjects reaction times in a secondary task (responding to a "click"). The data indicated that the easy texts filled cognitive capacity more completely than the difficult texts,…