Textbook writers, Chinese language teachers, and test designers need to ensure readability of the texts they use or intended to use. They often resort to "expert judgements" based on professional experience rather than apply objective measures. This happens because there is a lack of suitable readability formulas like those established…

Textbook publishers are under attack for producing books that are superficial in content and oversimplified or confusing in language. They respond that their products are the inevitable result of applying the many textbook selection formulas to book production. Efforts by educators to improve textbooks are currently being organized. (PGD)

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.…

Suggestions are presented in this paper to aid in the effective selection of instructional materials appropriate to the reading levels of the students who will use them. Formulas designed to predict the readability of material are discussed. The cloze procedure, which attempts to measure, for individuals, the difficulty of text, is recommended for…

Discusses the difficulty of determining the readability of textual material. (MKM)

The objectives of this study were to develop a method for scoring the level of abstraction (LOA) of science reading material and explore its relationship with other methods for assessing curriculum materials. LOA is defined as the ratio of the nonconcrete concepts to the total number of concepts in a written passage expressed as a percent.…

This article introduces and discusses some aspects of the complex problem of textbook reform, and suggests what the future holds for textbooks. (DCS)

Prepared by members of the Institute for Research on Teaching and the Center for the Study of Reading, the papers in this collection examine reading comprehension as an interactive process and explore how comprehension instruction occurs in the complex workplace of the classroom. Specific topics discussed in 20 papers include the following: (1)…