This article evaluates the mandatory English as a foreign language textbooks provided by the government in Chile in terms of readability and types of questions. Three readability formulas are used to analyze the texts: Flesch Reading Ease, Flesch-Kincaid Grade Level, and Coh-Metrix L2 reading index (RDL2). To evaluate the cognitive demands that…

When selecting a textbook, college instructors must weigh a variety of factors. One is whether the text is written at a level that is accessible to one's students. An important factor in this is how many technical words are used. I developed an index to calculate logodiversity, a term I coined that reflects the number of technical words and the…

Discusses a method for accurately assessing the internal variations in the readability of a book. (TJ)

Ten introductory textbooks on mental retardation were analyzed with the Flesch formula for reading ease and interest. All texts fell in the "difficult, college level" category for complexity, but seven were classified as "dull" and three "mildly interesting." Most included adequate organizational aids, and agreement…

"Lasbarhetsindex" ("Lix") is a readability formula developed in Sweden that holds promise for assessing text difficulty in other languages, including English. So far three separate studies have been conducted to test Lix with French and English texts, with German and English texts, and with Greek and English texts. In all three…

Explains why applying a readability formula to a content text is not enough to determine whether a student can read and understand the book. (MKM)

The learning difficulties described by students in statistics courses continue to engage researchers from several disciplines. One source of difficulty for graduate students in educational statistics courses is the reading difficulty of the textbook. Instructors making decisions about a textbook typically have little information about the reading…

Parts 1 and 2 (SE 524 424 and 527 089) described Flesch readability for determining a text's reading level and results of applying the test to astronomy/physics textbooks. This part presents results for a new sample of texts, including calculus-level texts. A comparison with high school physics texts is provided. (JM)

United States history as a linchpin in the school curriculum and as a potentially exciting, sometimes electrifying, subject was the conviction underlying this analysis of U.S. history textbooks. This assessment investigates the capacity of leading U.S. social studies and history textbooks to inspire the imagination of students through effective…