A corpus of current editions of statistics textbooks was assessed to compare aspects and levels of readability for the topics of "measures of center," "line of fit," "regression analysis," and "regression inference." Analysis with lexical software of these text selections revealed that the large corpus can…

Study was concerned with whether there is a practical difference between the reading ability of the eight, ninth, and tenth grade students and the readibility levels of their assigned textbooks in English, science and social studies. Findings show that most of the textbooks assigned were too difficult for effective instructional usage. (RB)

The accuracy of 210 college undergraduates' judgments of the relative learnability of original (Army training manuals) and rewritten (war or cultural histories) versions of 20 pairs of texts of known difficulty was studied. Students were 95 percent accurate in their judgments of learnability. Implications for college textbook selection are…

Topics include: (1) the content, style, and level of physics' textbooks; (2) suggestions for in-class use; and (3) recommendations for upgrading current texts. (SK)

Provides step-by-step procedures for developing an index which uses the Gunning Fog technique to evaluate the level of reading difficulty of textbooks. Cites examples, illustrations, and several warnings in the discussion. (RT)

The annotated bibliography provides information on commercially prepared materials that can be used in classrooms at all levels where English is taught as a second language. Twenty-four textbook series are described, arranged alphabetically by title. The listing is preceded by a categorization of the series by their content and focus:…