Six readability formulas (Flesch, Kincaid-Flesch, Dale-Chall, Gunning-Fog, Raygor, and Fog) were used to evaluate 260 vocational textbooks. The formulas were effective in discriminating ease or difficulty. Human interest scores, but not writing style, were a strong factor in identifying accessible texts for special populations. (SK)

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.…

Reports the means, standard deviations, and relevant statistics on an examination of the readability of 24 contemporary textbooks that employ a hybrid approach to the basic speech communication course. Discusses some strategies for developing reading skills. (KEH)

Fry's Readability Graph was used to determine the readability levels of the 1981 Scott, Foresman and Co. basal textbook series for grades one through six. The readability levels were then compared to those established for the 1978 edition. In the 1981 edition, all stories were handscored. Poems, skill lessons, and plays were not examined in order…

Those interested in textbook research, theory, and practice need to identify the independent or context variables that influence the making of a textbook--the intervening variables that come into play as textbooks are conceived, developed, and designed--and to show how these impact on the textbook, or dependent variable. To begin, critics and…

The first phase of a study investigating textbook readability and students' reading levels used three traditional formulas to assess the readability levels of 51 primary textbooks from college introductory social science courses in 7 disciplines. The second phase investigated the relationship between the readability levels of students' texts,…